I have been riding my 2021 Himmy with the FuelX pro for several months now. I am happy with the unit and would recommend it for any other Himmy owners. Before the installation throttle response was anemic. The bike was running too lean, and now you can feel the smooth power throughout the range. I would not install a tec cam without the fuel ex pro upgrade. The tec cam physically allows the engine to take in more fuel and air, but if the CPU is set to be lean by the Euro standard, then all you are going to have is a fuel starved engine with an expensive cam. I do a lot of off-road riding just because I live in the Andes and with the fuelx pro the bike does exactly what I need. With the unit installed I am needing to upgrade my rear tire to a more aggressive tread. I'm noticing a lot more slippage in the dirt with the old tire. The bottom line is that the unit more power and torque across the full range of the power band.
The fuel x will not give more power but it improves throttle response both on and off the gas and it gives a better overall spread of torque i found it a very good mod in conjunction with removing the catalyser and fitting a free flow air filter, it will only give a couple of extra ponies but hey more is more 👍
Installed Tec performance can, air filter mod, 16 tooth front sprocket and fuel X. These mods transform the bike from a plodder to a very quick and capable bike.
That’s another great endorsement! I have basically landed on the exact setup. I’m on tec’s list for the cam. Just a matter of time and I’ll have all the pieces. This is another reason I like the bike. I can tinker without breaking the bank! Thanks for the comment!
I've bought the Fuelx Pro for my Himalayan, I've already fitted one to my Interceptor, I unboxed it and was surprised that there are two sets of connections at the Lambda sensor end, two black and two white. I re watched your video, you used the white connections. So are the two black ones just surplus to requirements. Take care and ride safe.
So you have two black connections too that aren't used, I thought I had the wrong lead. Have you done a video on how you adjusted the idle screw, I bet I'm not the only one who'd be interested in seeing how you did that. I'll let you know how I get on with my Fuelx Pro. Ride safe.
@@paulstoker7650 hey that’s a great idea. I should have put it in this one but it’s relatively simple. I’ll try and crank that out over the next few days. I want another hundred or so rpm at idle anyway. Currently between 1100-1200. Thanks!
I haven’t found anyone that has also plugged in a Obd2 scanner, everyone just test rides. I want to see the short term fuel change with each setting. How about it. This can be seen at idle. On the short term fuel trim by adj while viewing, you can also record. No snake oil salesman then.
I think maybe you would want to see the afr reading in all the settings you could inspect the plug in a couple of setting below and above stock check exhaust temps Ill check these things after I install on my wifes bike just to see where RE is running the mixture and timing thanks for the install video
Thanks for that! I have not yet. Last ride for the test was Sunday and I just haven’t had a chance to tinker. It’s a great thought that I didn’t even put together. I’ll have to pull and clean, ride a bit, the. Check it out. I’ll post an update. Thanks!
Thanks for that! I have browsed but not clicked yet. They are saved in my Himalayan folder for quick access. Thanks for the tips and so others can see as well!
Is there anyone out there that actually understands how this thing works and how we should be using it? I have searched everywhere and have yet to find a website or video explaining how a real-world user would decide what map is best. Most videos say to set it somewhere and leave it. If that is how it is used, why not just buy the FuelX Lite? I can be riding at 4000m in the Andes and three hours later be at sea level. Should I change the map as I ride? Sometimes I can find 98 octane fuel, but other days I can't find anything higher than 87. Should I change the map depending on the fuel? What criteria should I use to initially select a map and how can I know what map to use for a given situation? Why can't the onboard computer make the necessary decisions about the fuel mixture?
Hi there. Put a Fuel X Pro into my 2019 Himalayan today. It was also on setting 7 which is strange since 3 is supposed to be stock. How did it change? A little bizarre. However, I will be trying it in the next few weeks with setting 4 as the baseline to see how the pickup, acceleration and fuel economy performs. Thanks for your interesting video which got me moving today. It was less than a 45-min job from start to finish so they definitely make a quality product. Cheers!
Hey Darrell, forgot to mention in the video, but to get the wire harness up underneath the bar from the storage compartment under the passenger seat to under driver’s seat, all you have to do is 1. open the storage box at the back of driver seat compartment on frame, then 2. Push down on the top part of the plastic fender directly under the metal frame, and the wiring will fit underneath. If that’s what your plan is. Just came to mind. Good luck!
I have a 23 Himalayan. I just installed a fuel x lite on the bike. I really like it and I think it made a big difference.. The only problem is the engine light is lite up and will not go away. So is the wench lite. Is there any way to turn those off or to reset them?
Hey Kevin! I am only one leaner than factory now. I’m at 7400 where I live with obvious ups and downs. They gave a factory near Chennai that’s close to sea level. I’m not really sure if that is where the Himalayan is made though. I couldn’t find a good answer for the Himalayan specifically. Not sure if that helps or not. Thanks!
@@swcoloradoadventures yes it helps were at around 5000 Im getting my wife a 2022 so if thats the case its set up for around sea level it should run rich enough for this altitude thanks
Watch out that it isn't overheating in hot weather. A lean mixture is the most efficient, BUT, a lean mixture runs hotter. Also, listen for spark knock when under load with full throttle on a hot day. Panniers will slow a smaller engine biggly at 60mph. Front sprocket changes are very effective in changing power characteristics and Ultra low cost.
Hey Kevin! Lots of great thoughts and suggestions. Thanks for that. Front sprocket change is definitely on the radar. If I notice any of the other issues, at least it will be easy to change the fuel mix to compensate. Appreciate the comments!
Hello Kym! Yes! I have a 2022, Euro 5 Himalayan and it works. It also does not change emissions if that is a concern. According to Race Dynamics, the manufacturer. Great question! Thanks for the comment
@@nelsdude I think you’re right on that. Check the powetronic website but it looked like they were taking orders on the newest model. I’m traveling but can check later. Good luck!
Wow! Thanks for that. I sure appreciate the nice comment. Thanks for hanging in there with the channel! I think you are the #1 commenter officially now!
Totally get it. I’ve learned a lot since then. That was an earlier program and it turned out horribly. I apologize for that. Lighting was bad. Ugh. Getting better. Thanks!
Hello Pub! 😂Yes, mine is a 2022 Euro 5 model. It does not affect the classification. It was taken down from the Powertronic website a month or so ago, I believe they were awaiting an updated model??? I bought mine from Amazon here amzn.to/3Gczf6O . It seems to make the most significant difference when paired with open airboxes and freer flowing exhaust like the Delkevic I installed. It sounds awesome and does feel a bit more torquey. Thanks for the question. Good luck with the mods and stay safe!
@@swcoloradoadventures but its got the cold start assist choke thing (Which Mine doesn't have) and the cat isn't on the vertical part of the exhaust.. Like my one has, the ECU's are different it is apparently part of or attached to the throttle body. You even need a different scan tool plug adaptor. Pretty sure yours is a Euro 4, My dealer also said that the wiring around the battery is different it is much easier to get the battery in and out.
@@PubRunner I have heard the same from other folks. My understanding the Euro 5 had the ABS cutoff, which mine has as well, but, I am just not 100% sure. It is definitely a 2022. I wish I had a straight answer, I could not find specifics where i looked, but one RE owner thread did say 2022 US models are Euro 4. THe cat is definitely on the horizontal part. So, theoretically, the FXP won't work? The part that I got said it was for 2017-2022, so, maybe that proves its Euro 4. Great thoughts. Wish I was a bit smarter...
@@swcoloradoadventures I am not sure why the USA isn’t getting the Euro 5 Himalayan the new scram is definitely Euro 5. I got the E5 ECU location wrong it’s on the air box and it’s smaller. I would have thought with California been so mad tight with emission that they would be all over it….. still E4 or 5 they are great bikes. I put the DNA filter and air box cover delete on but I went back to the stock cover. Going from stock filter to the DNA smoothed the bike out a LOT then I put the cover delete on and it made it feel rough again and I hated the induction sound. So I put the stock cover back on. Now it’s smooth again. The fuel consumption when up too and now it has dropped a little. I lots about 75 to a hundred Ks in range and the mirrors were useless on the freeways. Now with the DNA filter and stock cover on the freeways I can now at least tell the model of the car behind. The vibration is that bad with stock filter and with the cover delete fitted. You can’t really feel it but you see it in the mirrors on the freeways.
@@PubRunner absolutely! Double take mirrors on the horizon. Only had it two months now and mostly off road. So I was prioritizing the upgrades. On the noise front, just came from a Harley Softail Dekuxe. I can hardly tell the Himalayan is running… it’s a super fun bike to tinker with though. Really enjoying it!
Opening up air box ports is the mistakes that most make. Now air moves through throttle body slower. Its about the velocity of air intake. Thats whats lost when non engineering takes over with no math or logical physics. This is why normally aspirated setups, ports- velocity stacks are important at lower rev bands. Except for forced induction.
Hello there! I like your thoughts! I replaced the breather on my Harley and felt immediate response. I was super surprised. For the Himalayan, It makes sense that airflow over the open box creates vacuum reducing airflow. The OEM had a rear facing port which definitely did not seem optimal. Would it then make sense to have a "scoop" facing forward to force air into the box? Thanks!
@@swcoloradoadventures Im now 57yrs old. I spent my teenage yrs as an apprentice automotive engineer. A trade skill here in Australia. I see lots of mods some great some not so. I can say that having 2 new previous R1's that Yamaha is onto somthing thats not new, thats verible air velocity stacks in the air box. long for torque and short for peak HP at a matched air flow diameter. I also made mistakes in the 80s thinking im setting up for bigger hp only to find the bike and car felt flat, but made lots of noise mistaken for hp....lol RAM air. It works, its great but one would need to take into account for buffering, tubulants and eddy currents inside the air box, so pocket chambers plentium chambers or baffles to equalise volume.
@@hunterssports makes sense. You have 5 years on my so I defer. The only test i did on the last Harley was the butt test on the hwy and speedo. I have never even played an engineer on TV. I could sure take a shot of your weather right now. I bought this bike right before the snow started and now there is some in the forecast for the next 10 days...What do ya do? It will pass. Thanks again for the insights!
I was interested in your review/ conclusions and appreciated the clear explanation so thanks for that, however I can't help thinking that all these electronic bolt on gadgets and gizmos are never going to squeeze much more power out of that engine , even the combination of a TEC cam isn't going to see much more . It all seems like wasting your time and money on a whole lot of over complicated nonsense . Buy a Yamaha XTZ660 instead ...problem solved.
Hey Damian! Great question. Firstly. I don’t need much. The bike does great off road where I’ll be most of the time. The tenere is the closest thing to what I would buy, maybe on the next upgrade. It’s a little plasticy for me currently. But that may fully change before I’m ready. It is almost double the cost of the Himalayan and there were none to even be test driven that I could find reasonably close. And the fuel x pro was $179. Not too expensive. Exhaust and stuff are the first to go on any bike you by. Hope that makes sense. Thanks for watching and great question!
As an engineer, I can tell that most of it is a gimmick, costing you more in fuel and parts. Your original ECU will adjust to the air oxigen richness. This is done by the oxygen sensors and works well with no extra parts. Do you really believe that few guys in an Indian garage can make a better ECU than a 100-year-old company selling millions of bikes?
💡💡Question of the day!!!➡ Are you considering a Fuel X Pro? Which bike? Thanks!
I have been riding my 2021 Himmy with the FuelX pro for several months now. I am happy with the unit and would recommend it for any other Himmy owners. Before the installation throttle response was anemic. The bike was running too lean, and now you can feel the smooth power throughout the range. I would not install a tec cam without the fuel ex pro upgrade. The tec cam physically allows the engine to take in more fuel and air, but if the CPU is set to be lean by the Euro standard, then all you are going to have is a fuel starved engine with an expensive cam. I do a lot of off-road riding just because I live in the Andes and with the fuelx pro the bike does exactly what I need. With the unit installed I am needing to upgrade my rear tire to a more aggressive tread. I'm noticing a lot more slippage in the dirt with the old tire. The bottom line is that the unit more power and torque across the full range of the power band.
Good report! Definitely smooths everything out and makes it a bit more enjoyable. If it works in the Andes, that’s a good endorsement. Thanks!
The fuel x will not give more power but it improves throttle response both on and off the gas and it gives a better overall spread of torque i found it a very good mod in conjunction with removing the catalyser and fitting a free flow air filter, it will only give a couple of extra ponies but hey more is more 👍
Should we change the air filter if we are installing fuel x pro or pro + for himalayan 450 ??
Also, if you run excessively lean you can burn valves.
I did about 5 things to get mine to idle right and have a cutting in/out at a constant 3000 rpms.This sounds like a must do.
Installed Tec performance can, air filter mod, 16 tooth front sprocket and fuel X. These mods transform the bike from a plodder to a very quick and capable bike.
That’s another great endorsement! I have basically landed on the exact setup. I’m on tec’s list for the cam. Just a matter of time and I’ll have all the pieces. This is another reason I like the bike. I can tinker without breaking the bank! Thanks for the comment!
Is not really!
@@LasGordasViajeras thanks for watching, Rodrigo!
Thanks for you vidéo, it's very informative! I hesitate between the lite and pro version!
Sure thing! I get it. If you want control, the pro is the pick. Be safe out there!
I've bought the Fuelx Pro for my Himalayan, I've already fitted one to my Interceptor, I unboxed it and was surprised that there are two sets of connections at the Lambda sensor end, two black and two white. I re watched your video, you used the white connections. So are the two black ones just surplus to requirements.
Take care and ride safe.
Hate to say it. But I’m not real sure. Either for another model or more likely to add in the ECU controller. Hope it works well for you. Thanks!
So you have two black connections too that aren't used, I thought I had the wrong lead. Have you done a video on how you adjusted the idle screw, I bet I'm not the only one who'd be interested in seeing how you did that.
I'll let you know how I get on with my Fuelx Pro.
Ride safe.
@@paulstoker7650 hey that’s a great idea. I should have put it in this one but it’s relatively simple. I’ll try and crank that out over the next few days. I want another hundred or so rpm at idle anyway. Currently between 1100-1200. Thanks!
I haven’t found anyone that has also plugged in a Obd2 scanner, everyone just test rides. I want to see the short term fuel change with each setting. How about it. This can be seen at idle. On the short term fuel trim by adj while viewing, you can also record.
No snake oil salesman then.
I think maybe you would want to see the afr reading in all the settings you could inspect the plug in a couple of setting below and above stock check exhaust temps Ill check these things after I install on my wifes bike just to see where RE is running the mixture and timing thanks for the install video
Thanks Kevin! I would definitely be interested in hearing what you find out. And, you’re welcome. Thanks!
Informative video, thank you. Did you pull the plug to see if was burning leaner after making map change?
Thanks for that! I have not yet. Last ride for the test was Sunday and I just haven’t had a chance to tinker. It’s a great thought that I didn’t even put together. I’ll have to pull and clean, ride a bit, the. Check it out. I’ll post an update. Thanks!
Hitchcocks motorcycles in the U.K. sells all sorts of RE parts and they ship ultra fast.... just for your info.
Thanks for that! I have browsed but not clicked yet. They are saved in my Himalayan folder for quick access. Thanks for the tips and so others can see as well!
Is there anyone out there that actually understands how this thing works and how we should be using it? I have searched everywhere and have yet to find a website or video explaining how a real-world user would decide what map is best. Most videos say to set it somewhere and leave it. If that is how it is used, why not just buy the FuelX Lite? I can be riding at 4000m in the Andes and three hours later be at sea level. Should I change the map as I ride? Sometimes I can find 98 octane fuel, but other days I can't find anything higher than 87. Should I change the map depending on the fuel? What criteria should I use to initially select a map and how can I know what map to use for a given situation? Why can't the onboard computer make the necessary decisions about the fuel mixture?
Hi there. Put a Fuel X Pro into my 2019 Himalayan today. It was also on setting 7 which is strange since 3 is supposed to be stock. How did it change? A little bizarre. However, I will be trying it in the next few weeks with setting 4 as the baseline to see how the pickup, acceleration and fuel economy performs. Thanks for your interesting video which got me moving today. It was less than a 45-min job from start to finish so they definitely make a quality product. Cheers!
Hello fellow Ron! It seems strange but who knows really? Have fun with it. Seemed to help throttle response in my opinion. Thanks!
Helpful. Thanks😁!
Thanks for the video, I am installing one and this is helpful....
Absolutely! If it helps anyone not make the silly mistakes I did it’s a win. Thank you for saying so!
Hey Darrell, forgot to mention in the video, but to get the wire harness up underneath the bar from the storage compartment under the passenger seat to under driver’s seat, all you have to do is 1. open the storage box at the back of driver seat compartment on frame, then 2. Push down on the top part of the plastic fender directly under the metal frame, and the wiring will fit underneath. If that’s what your plan is. Just came to mind. Good luck!
@@swcoloradoadventures Thank you, will do!
Go to. Bike tec in the uk. He's does the cams and a bit of the fuel x .
Thanks. I installed the Tec Bike Parts cam last spring as well. There’s a video on that as well if interested. Thanks!
I have a 23 Himalayan. I just installed a fuel x lite on the bike. I really like it and I think it made a big difference.. The only problem is the engine light is lite up and will not go away. So is the wench lite.
Is there any way to turn those off or to reset them?
Turn on and off the ignition 4-5 times
Thanks for the video..me to installed after watching this..Where the earh connection goes??
I mean earth connection..saw you attached to the battery..
@@sandeepbaddela1 exactly! It goes to the negative terminal. Thanks for watching. Be safe out there!
Thank you for the prompt reply..cheers. keep educating us 😁
you went leaner from the factory you're sitting at 5 to 6000 elevation factory is set at what sea level ?
Hey Kevin! I am only one leaner than factory now. I’m at 7400 where I live with obvious ups and downs. They gave a factory near Chennai that’s close to sea level. I’m not really sure if that is where the Himalayan is made though. I couldn’t find a good answer for the Himalayan specifically. Not sure if that helps or not. Thanks!
@@swcoloradoadventures yes it helps were at around 5000 Im getting my wife a 2022 so if thats the case its set up for around sea level it should run rich enough for this altitude thanks
@@kevincraig8257 sure thing!
New redesigned Himalayan 450 is coming in 2023! New engine too
Yes! Saw the spy photos. Gonna be interesting. I heard it will be around 40 HP, but I haven’t seen anything official. Thanks for the comment!
I love the current design
Watch out that it isn't overheating in hot weather. A lean mixture is the most efficient, BUT, a lean mixture runs hotter. Also, listen for spark knock when under load with full throttle on a hot day. Panniers will slow a smaller engine biggly at 60mph. Front sprocket changes are very effective in changing power characteristics and Ultra low cost.
Hey Kevin! Lots of great thoughts and suggestions. Thanks for that. Front sprocket change is definitely on the radar. If I notice any of the other issues, at least it will be easy to change the fuel mix to compensate. Appreciate the comments!
@@swcoloradoadventures a well designed product for sure.
Will this modification work on the latest Himalayan?
Hello Kym! Yes! I have a 2022, Euro 5 Himalayan and it works. It also does not change emissions if that is a concern. According to Race Dynamics, the manufacturer. Great question! Thanks for the comment
@@swcoloradoadventures I think the U.S. 2022 Himmy is actually a Euro 4...?
@@nelsdude I think you’re right on that. Check the powetronic website but it looked like they were taking orders on the newest model. I’m traveling but can check later. Good luck!
Very useful video 👍
Wow! Thanks for that. I sure appreciate the nice comment. Thanks for hanging in there with the channel! I think you are the #1 commenter officially now!
why only 360p video cant see anything?
Totally get it. I’ve learned a lot since then. That was an earlier program and it turned out horribly. I apologize for that. Lighting was bad. Ugh. Getting better. Thanks!
@@swcoloradoadventures np. We all learn. Think combi of low light and res made it difficult to watch and see the important stuff.
@@r6stu totally agree!
Is there a model for the Euro 5 Himalayan?
Hello Pub! 😂Yes, mine is a 2022 Euro 5 model. It does not affect the classification. It was taken down from the Powertronic website a month or so ago, I believe they were awaiting an updated model??? I bought mine from Amazon here amzn.to/3Gczf6O . It seems to make the most significant difference when paired with open airboxes and freer flowing exhaust like the Delkevic I installed. It sounds awesome and does feel a bit more torquey. Thanks for the question. Good luck with the mods and stay safe!
@@swcoloradoadventures but its got the cold start assist choke thing (Which Mine doesn't have) and the cat isn't on the vertical part of the exhaust.. Like my one has, the ECU's are different it is apparently part of or attached to the throttle body. You even need a different scan tool plug adaptor.
Pretty sure yours is a Euro 4, My dealer also said that the wiring around the battery is different it is much easier to get the battery in and out.
@@PubRunner I have heard the same from other folks. My understanding the Euro 5 had the ABS cutoff, which mine has as well, but, I am just not 100% sure. It is definitely a 2022. I wish I had a straight answer, I could not find specifics where i looked, but one RE owner thread did say 2022 US models are Euro 4. THe cat is definitely on the horizontal part. So, theoretically, the FXP won't work? The part that I got said it was for 2017-2022, so, maybe that proves its Euro 4. Great thoughts. Wish I was a bit smarter...
@@swcoloradoadventures I am not sure why the USA isn’t getting the Euro 5 Himalayan the new scram is definitely Euro 5. I got the E5 ECU location wrong it’s on the air box and it’s smaller.
I would have thought with California been so mad tight with emission that they would be all over it….. still E4 or 5 they are great bikes.
I put the DNA filter and air box cover delete on but I went back to the stock cover. Going from stock filter to the DNA smoothed the bike out a LOT then I put the cover delete on and it made it feel rough again and I hated the induction sound. So I put the stock cover back on. Now it’s smooth again. The fuel consumption when up too and now it has dropped a little. I lots about 75 to a hundred Ks in range and the mirrors were useless on the freeways. Now with the DNA filter and stock cover on the freeways I can now at least tell the model of the car behind. The vibration is that bad with stock filter and with the cover delete fitted. You can’t really feel it but you see it in the mirrors on the freeways.
@@PubRunner absolutely! Double take mirrors on the horizon. Only had it two months now and mostly off road. So I was prioritizing the upgrades. On the noise front, just came from a Harley Softail Dekuxe. I can hardly tell the Himalayan is running… it’s a super fun bike to tinker with though. Really enjoying it!
Opening up air box ports is the mistakes that most make. Now air moves through throttle body slower. Its about the velocity of air intake. Thats whats lost when non engineering takes over with no math or logical physics. This is why normally aspirated setups, ports- velocity stacks are important at lower rev bands. Except for forced induction.
Hello there! I like your thoughts! I replaced the breather on my Harley and felt immediate response. I was super surprised. For the Himalayan, It makes sense that airflow over the open box creates vacuum reducing airflow. The OEM had a rear facing port which definitely did not seem optimal. Would it then make sense to have a "scoop" facing forward to force air into the box? Thanks!
@@swcoloradoadventures Im now 57yrs old. I spent my teenage yrs as an apprentice automotive engineer. A trade skill here in Australia. I see lots of mods some great some not so. I can say that having 2 new previous R1's that Yamaha is onto somthing thats not new, thats verible air velocity stacks in the air box. long for torque and short for peak HP at a matched air flow diameter.
I also made mistakes in the 80s thinking im setting up for bigger hp only to find the bike and car felt flat, but made lots of noise mistaken for hp....lol
RAM air. It works, its great but one would need to take into account for buffering, tubulants and eddy currents inside the air box, so pocket chambers plentium chambers or baffles to equalise volume.
@@hunterssports makes sense. You have 5 years on my so I defer. The only test i did on the last Harley was the butt test on the hwy and speedo. I have never even played an engineer on TV. I could sure take a shot of your weather right now. I bought this bike right before the snow started and now there is some in the forecast for the next 10 days...What do ya do? It will pass. Thanks again for the insights!
I was interested in your review/ conclusions and appreciated
the clear explanation so thanks for that, however I can't help thinking that all these electronic bolt on gadgets and gizmos are never going to squeeze much more power out of that engine , even the combination of a TEC cam isn't going to see much more . It all seems like wasting your time and money on a whole lot of over complicated nonsense . Buy a Yamaha XTZ660 instead ...problem solved.
Hey Damian! Great question. Firstly. I don’t need much. The bike does great off road where I’ll be most of the time. The tenere is the closest thing to what I would buy, maybe on the next upgrade. It’s a little plasticy for me currently. But that may fully change before I’m ready. It is almost double the cost of the Himalayan and there were none to even be test driven that I could find reasonably close. And the fuel x pro was $179. Not too expensive. Exhaust and stuff are the first to go on any bike you by. Hope that makes sense. Thanks for watching and great question!
Hello sir...
Hello Arcelle!
As an engineer, I can tell that most of it is a gimmick, costing you more in fuel and parts. Your original ECU will adjust to the air oxigen richness. This is done by the oxygen sensors and works well with no extra parts. Do you really believe that few guys in an Indian garage can make a better ECU than a 100-year-old company selling millions of bikes?