He should totally do that. Maybe u could do one of each style; commuter, snow, downhill, utility bikes. People use ebikes for different things I think it would be cool to see the best of a bunch of different types
After some research, I realised the Trek Roscoe was the perfect bike for my build. I chopped the handlebars a bit as I found they were way too wide. The bike is amazing! I couldn’t be happier with it and I highly recommend it for a build. I did get the m/l size and had to mount the battery on the top of the bike as there wasn’t any room in the triangle for it. Something to bear in mind.
I’m getting ready to do this same exact build. I’m curious about your battery comment, what size battery did you install? Mine is a large frame, so I’m hoping there’s just enough room for a battery inside the triangle, or contemplating getting a slightly smaller battery?
@@Lions_Forever71 I have a standard size Hailong downtube battery, it’s the same Johnny uses for his builds. I’m not sure what size triangle is on a large, best get the dimensions first. The chain line is stock size. But the motor goes too fast to be able to pedal anyway! It is a hub motor I have. (Sorry Johnny!)
Hey Johnny, did you have to add any spacers or anything special to get a good chainline with this set up? Is this a standard 68 - 73 BBSHD on this bike?
Thanks Johnny I watched all your videos with your help I just put a 750watt BBS02 mid drive on my 2014 29er Trek Xcaliber 7, I had to use 1 spacer to get the motor off the chain stay. Still got to get a Lekkie 42t chainring better then the 44t stock ring. My chain line is only slightly off so no dropped chains yet on my 9 speed sprocket, The hill climb is great done around 30 miles so far no problems at all. I just got to get a new seat and adjustable steam, rack and I have a great Ebike you just give me the idea to get the Schwalbe tyres - Thank you for all the help great channel and your build video inspired me to finally do it. All the best from the UK !!!
Hi you sound like you know what your doing, lol. I have a 2019 Trek Roscoe 7 and I want to get the BBS02 and im not sure if the bottom bracket will fit or not, and Im not sure what chain wheel will fit, Im new to all this bike conversions so thats why I dont know much.
Hi Johnny thanks to you I picked up a 36T chain and a pair of bobs so I can could move my throttle to the right hand side where my gear shifter sits so thank Johnny 😊
I recently tried fitting the tongshen mid drive to a roscoe 6 but the oversized wheels didn't line up. Did you have any issues getting the chain to line up with bafang?
I’ve done a few roscoes, I think I have always used the Lekkie chainrings to solve any chainline issues. It depends on which trim and which size frame you have as those both play a factor (Mildly) I think the Lekkie 42t is usually the best if I had to go off memory…
Thanks for video. I want to change my 2019 Trek fuel ex 7 to an ebike but struggling on how to use the pressfit92 with the bafang bbshd motor. I think Lekke has an adapter for this but do you have a video where you have install using a pressfit ?
Luna Cycle also sells an adapter to PF92, and you'll need the 100mm BBSHD motor not the 73mm motor. I would love to see Johnny film a video on this type of installation for the PF BBs
Thanks for all of the info you provide on such a complex subject! I'm still on the fence as to weather to conver- mid-motor on my Marin X10 Gestalt. It's a 1x10 with a 42 chainring. Will I be able to still have a 42 chainring in the conversion?
Lekkie makes a 42 tooth chain ring for bafang motors. I have one on my bike and it helps with my chain line and makes the bike climb hills without much effort.
@@edinelsonramirez5656 the two I bought were a trifle less, but if one includes shipping, that 100$ fig sounds likely. Note that the toothy portion of the Luna sprocket detaches from the carrier, so you don’t need to replace the whole thing when it is time. Not sure about the Lekkie.
@@edinelsonramirez5656 They tend to range about $120-$150 for the Lekkie ones from what I'm seeing on different sites. At that price, I'd go with the Luna like Dennis is saying.
Hello Johnny, thanks for the consult last month, i have the same setup, question the DPC18 display only shows 38.v when the battery metres out 57.8V fully charged
@@JohnnyNerdOut Everything seems to be fine with display. Google returned 1 forum discussing this problems 2 replies said to ask for a warranty replacement as theirs have no issues. The bike is a rocket!!
I had trouble fitting both the BBSHD and BBSO2 through the bottom bracket. It was like a millimeter too small. I didn’t want to hone it. How did you do it?
@@MikeyMinimo he uses a hole saw to shave material out from the inside of the bottom bracket, if thats what you're talking about being too small. If the spindle itself is too small and theres not enough threads to get the lockring on, thats more of a motor size issue. but if its just a mm, maybe slightly grind down the sides of the bb shell or something
This is close to my dream build for an EMTB, I would try going with 29x2.8 tires as I think it would make it faster and more forgiving on really rough trails and I would go tubeless to run low pressure.
Hey John, I’m having some slipping issues on the smallest cog under load. If I set a call with you would you be able to troubleshoot it with me? I have the same bike as in the video but with a BBS02
@@JohnnyNerdOut ok I’ll book a call with you for next week some time so we can actually talk. It’s a brand new chain and cassette. I appreciate the response.
hey guys, so I have a 2019 trek roscoe 7 and I want to get a BBS02 on it, and im not sure if the motor will fit on it. what do you guys think? can I have the standard size on the BBS02 or do I have to get the bigger one on the BBSHD thanks
I've got some questions on your tannis tire inserts. These cost me 70 bucks a tire and you are supposed to deflate the tires after you use the bike. Do you do this?
that is a recommendation to "increase the longevity and performance of Tannus Armour" and prevent compression of the inserts. I can't imagine anyone would deflate their tires after every ride. Seems like you would only do that before putting the bike in storage. Bike tires tend to lose pressure sitting anyways.
I have a Marin rift zone 3 front is 27.5x3.0 and rear is 27.5x3.0. I have a trail near me that takes you a couple miles through sand wash pedaling. I can pedal it through the whole way. -so yeah put the fat tire away 3.0’s will get you there for sure.
I'm just in the middle of building a 52v 20amp BBSHD on a Saracen Mantra (it's a UK bike) complete with the lighting kit from China, as in stop lights tail light indicators and front light with a horn, the whole thing stands me at £2,300
I'm in the UK I have a E-bike for sale now. A Boardman comp 27.5inch very good condition. 1000w to 1500w mix top speed 38mph. Big removable battery pack. 52v 16am with Bluetooth BMS. Air suspension & Good Sram hydraulic brakes. Regen breaking puts power back into battery giving you more range. And KT LCD8s coloured display. Magnetic brake cut off switches. Front light with horn with handlebar switches. Back light with brake light 6 inch custom built. Key ignition with voltage display. Double custom-built torque arms. 10 speed at the back & 2 at the front. It's professionally put together no zip ties can be seen. Pedal assist & twist throttle. Switches and ignition is custom built together. So it looks factory built if not better. I'm only selling for £1000 This is the 4th ebike i built to sell. I'm still making profit
@@JohnnyNerdOut After this bike (in the video) was delivered, one of the magnets had become unglued. I reglued both with J-B Weld. Not only does the dark grey match the bike nicely, but the epoxy is SLIGHTLY ferrous... so the magnet pulled the epoxy in, making for a very smooth and slick look once it cures. I HIGHLY recommend it as opposed to super glue, which looks kinda crusty, and is too brittle. The J-B Weld is SOLID and super strong, plus looks great to boot! I suggest using it for all future brake cutoff installs. It's way better. (BTW, LOVE THE BIKE, Johnny! Thank you!)
Super duper ultra mega noob question - 4:10 - am I to understand these mid drives can use throttle without pedal movement? If so, is that an inherent feature to all mid drives, or just certain ones. Because I was always led to believe only hubs could use throttle.
@johnnynerdout BTW, you mention that you have to press a button to activate the head light. Not true. That display has a sensor. My headlight comes on automatically when it starts to get dark. very nice.
I would like to purchase the same bike from you. Can you give me a quote? Do I have to buy the bike here and ship to you or can you purchase it in your area, complete the build and ship to me in San Diego?
Hey Johnny trouble n paradise. I have hit a wall trying to convert my specialized rockhopper expert 29 into a ebike. Apparently the eagle 12 speed is a poor choice for the bafang. Just Wanted to let you and your subscribers know. Lekkie bling ring doesn't work even with a 18 mm offset chain ring. The folks at Golden motors assured me it would. 😒
Are you trying to come in towards the frame more or out? I had to modify a lekkie 52t ring that is made for a BBSHD motor. My motor is a BBS02. I needed to bring the chain line in towards the frame. Another option would be to get a rohloff hub ( I know expensive) but you can dial in the chain line really well when it's one straight chain line.
@Keith Benjamin my issue is that my chain ring is about 1 maybe 2 mm from the Chain stay and my chain line is rubbing on the rear derailleur when I have the chain in the middle of the 12 speed cassette. In other words my chain ring is too far outboard even though it is just about touching the chain stay. Wondering if a smaller chain ring with a bigger offset might be the solution,if there's such a thing
Currently building trek roscoe with the bbshd but u have to space the motor out because it hits the frame and now throws the chain line right out.. :( I've not put the chain on yet but can see it having issues
happens a lot with BBS installs, most of the time it needs an offset chainring. Often needs some bottom bracket spacers. Some people will grind off material from the motor if its just a little
Hi Johnny, I would like to see a video on your top 5 or 10 bikes to convert to ebikes. Thanks
He should totally do that. Maybe u could do one of each style; commuter, snow, downhill, utility bikes. People use ebikes for different things I think it would be cool to see the best of a bunch of different types
This is the bike I'm now considering. I would love to see a shot of the bafang logo on the left side to see how high up the motor mounts on the frame.
After some research, I realised the Trek Roscoe was the perfect bike for my build. I chopped the handlebars a bit as I found they were way too wide. The bike is amazing! I couldn’t be happier with it and I highly recommend it for a build. I did get the m/l size and had to mount the battery on the top of the bike as there wasn’t any room in the triangle for it. Something to bear in mind.
I’m getting ready to do this same exact build. I’m curious about your battery comment, what size battery did you install? Mine is a large frame, so I’m hoping there’s just enough room for a battery inside the triangle, or contemplating getting a slightly smaller battery?
Also curious what size chainring did you use? And how is your chain line?
@@Lions_Forever71 I have a standard size Hailong downtube battery, it’s the same Johnny uses for his builds. I’m not sure what size triangle is on a large, best get the dimensions first. The chain line is stock size. But the motor goes too fast to be able to pedal anyway! It is a hub motor I have. (Sorry Johnny!)
@@neilrogersrogers6313 wait you fit a hub motor on the trek roscoe? what kind and how? with those huge tires
@@Sigmaruler0199 any decent motor that comes with mtx rims.
Hey Johnny, did you have to add any spacers or anything special to get a good chainline with this set up? Is this a standard 68 - 73 BBSHD on this bike?
I've got this exact bike. I've been looking to get a kit for this bike but was unsure, but this video is exactly what I needed to see 👍
Thanks Johnny I watched all your videos with your help I just put a 750watt BBS02 mid drive on my 2014 29er Trek Xcaliber 7, I had to use 1 spacer to get the motor off the chain stay. Still got to get a Lekkie 42t chainring better then the 44t stock ring. My chain line is only slightly off so no dropped chains yet on my 9 speed sprocket, The hill climb is great done around 30 miles so far no problems at all. I just got to get a new seat and adjustable steam, rack and I have a great Ebike you just give me the idea to get the Schwalbe tyres - Thank you for all the help great channel and your build video inspired me to finally do it. All the best from the UK !!!
Schwalbe Big Ben Raceguard tires. Used these on my first build, and have bought them for the in-process build.
@@dennisyoung4631 Good idea I worry about punchers, my touring bike has marathon tyres so I was looking at something for my 29er
Anyone try the Vee speedster tires?
Hi you sound like you know what your doing, lol. I have a 2019 Trek Roscoe 7 and I want to get the BBS02 and im not sure if the bottom bracket will fit or not, and Im not sure what chain wheel will fit, Im new to all this bike conversions so thats why I dont know much.
Hi Johnny thanks to you I picked up a 36T chain and a pair of bobs so I can could move my throttle to the right hand side where my gear shifter sits so thank Johnny 😊
it would be interesting to see a top-down view of the chainline for the builds
Great idea
I recently tried fitting the tongshen mid drive to a roscoe 6 but the oversized wheels didn't line up. Did you have any issues getting the chain to line up with bafang?
I’ve done a few roscoes, I think I have always used the Lekkie chainrings to solve any chainline issues. It depends on which trim and which size frame you have as those both play a factor (Mildly) I think the Lekkie 42t is usually the best if I had to go off memory…
really nice build!
Thanks for video. I want to change my 2019 Trek fuel ex 7 to an ebike but struggling on how to use the pressfit92 with the bafang bbshd motor. I think Lekke has an adapter for this but do you have a video where you have install using a pressfit ?
Luna Cycle also sells an adapter to PF92, and you'll need the 100mm BBSHD motor not the 73mm motor. I would love to see Johnny film a video on this type of installation for the PF BBs
2in tow straps are 11 bucks and you can line both tires, works flawlessly!
Are you using some type of adhesive to keep the tow straps in place?
Are these bikes large frame? From my measurements a 17.5 ah battery might only just fit but I’m not sure if it will slide off aha if that makes sense
Thanks for all of the info you provide on such a complex subject!
I'm still on the fence as to weather to conver- mid-motor on my Marin X10 Gestalt. It's a 1x10 with a 42 chainring. Will I be able to still have a 42 chainring in the conversion?
Lekkie makes a 42 tooth chain ring for bafang motors. I have one on my bike and it helps with my chain line and makes the bike climb hills without much effort.
That, and Luna sells one. I’ve bought two of them. 42 tooth, both of them.
Do they cost like $100 bucks?
Thanks for the info guys!
@@edinelsonramirez5656 the two I bought were a trifle less, but if one includes shipping, that 100$ fig sounds likely.
Note that the toothy portion of the Luna sprocket detaches from the carrier, so you don’t need to replace the whole thing when it is time. Not sure about the Lekkie.
@@edinelsonramirez5656 They tend to range about $120-$150 for the Lekkie ones from what I'm seeing on different sites. At that price, I'd go with the Luna like Dennis is saying.
That's a fairly low-hanging codpiece, er, motor for challenging trails. Is that tucked up as close as it can get? Looks like cables in the way.
Hi Johnny is that the original chain on the bike or did u have to get more linked chain, thanks.
Hello Johnny, thanks for the consult last month, i have the same setup, question the DPC18 display only shows 38.v when the battery metres out 57.8V fully charged
That’s peculiar 🤨 have you checked the setting in the display menu? Maybe something is setting it off…
@@JohnnyNerdOut
Everything seems to be fine with display. Google returned 1 forum discussing this problems 2 replies said to ask for a warranty replacement as theirs have no issues. The bike is a rocket!!
Bafang requested pictures back of the DPC18 and numbers from mid drive casing
I had trouble fitting both the BBSHD and BBSO2 through the bottom bracket. It was like a millimeter too small. I didn’t want to hone it. How did you do it?
Check my video on that topic!😀
@@JohnnyNerdOut can u please tell me which video that is?
@@MikeyMinimo he uses a hole saw to shave material out from the inside of the bottom bracket, if thats what you're talking about being too small. If the spindle itself is too small and theres not enough threads to get the lockring on, thats more of a motor size issue. but if its just a mm, maybe slightly grind down the sides of the bb shell or something
Hey Johnny, Have you installed a 68-73mm or 100mm motor on this bike?
68
This is close to my dream build for an EMTB, I would try going with 29x2.8 tires as I think it would make it faster and more forgiving on really rough trails and I would go tubeless to run low pressure.
I was wondering if you have built an electric bike using a Tongsheng mid drive. Cheers.
Hello. What chainring should I put if I have a 11-50t on my rear cassette? I am only worried about my chainline
Hey John, I’m having some slipping issues on the smallest cog under load. If I set a call with you would you be able to troubleshoot it with me? I have the same bike as in the video but with a BBS02
Yes 👍 I’d probably recommend checking/replacing the cassette and or chain.
@@JohnnyNerdOut ok I’ll book a call with you for next week some time so we can actually talk. It’s a brand new chain and cassette. I appreciate the response.
Do you have a link to the thing you use to keep the bikes in place while doing the videos? I'm not sure what they are called and where to get one.
It’s just a foldable bike stand. I think I got it on Amazon for about 30 bucks
Hi Johnny, and hello from New Zealand, what are your top 5 favorite hardtail bikes to convert, Trek Roscoe and? Cheers.
Specialized fuse. Rockhopper. Dragon slayer. Marlin.
hey guys, so I have a 2019 trek roscoe 7 and I want to get a BBS02 on it, and im not sure if the motor will fit on it. what do you guys think? can I have the standard size on the BBS02 or do I have to get the bigger one on the BBSHD
thanks
I've got some questions on your tannis tire inserts. These cost me 70 bucks a tire and you are supposed to deflate the tires after you use the bike. Do you do this?
that is a recommendation to "increase the longevity and performance of Tannus Armour" and prevent compression of the inserts. I can't imagine anyone would deflate their tires after every ride. Seems like you would only do that before putting the bike in storage. Bike tires tend to lose pressure sitting anyways.
I have a Marin rift zone 3 front is 27.5x3.0 and rear is 27.5x3.0. I have a trail near me that takes you a couple miles through sand wash pedaling. I can pedal it through the whole way.
-so yeah put the fat tire away 3.0’s will get you there for sure.
what seat is that? thanks
I'm just in the middle of building a 52v 20amp BBSHD on a Saracen Mantra (it's a UK bike) complete with the lighting kit from China, as in stop lights tail light indicators and front light with a horn, the whole thing stands me at £2,300
Top man for posting this comment
I'm in the UK
I have a E-bike for sale now.
A Boardman comp 27.5inch very good condition.
1000w to 1500w mix top speed 38mph.
Big removable battery pack.
52v 16am with Bluetooth BMS.
Air suspension &
Good Sram hydraulic brakes.
Regen breaking puts power back into battery giving you more range.
And KT LCD8s coloured display.
Magnetic brake cut off switches.
Front light with horn with handlebar switches.
Back light with brake light 6 inch custom built.
Key ignition with voltage display.
Double custom-built torque arms.
10 speed at the back & 2 at the front.
It's professionally put together no zip ties can be seen.
Pedal assist & twist throttle.
Switches and ignition is custom built together.
So it looks factory built if not better.
I'm only selling for £1000
This is the 4th ebike i built to sell.
I'm still making profit
Hi. Good day. Hope you're doing great. What glue do you use to put the magnet onto the brake lever? Thanks. You're awesome by yhe way.
Thanks! Lately I’ve liked the loctite super glue gel.
@@JohnnyNerdOut After this bike (in the video) was delivered, one of the magnets had become unglued. I reglued both with J-B Weld. Not only does the dark grey match the bike nicely, but the epoxy is SLIGHTLY ferrous... so the magnet pulled the epoxy in, making for a very smooth and slick look once it cures. I HIGHLY recommend it as opposed to super glue, which looks kinda crusty, and is too brittle. The J-B Weld is SOLID and super strong, plus looks great to boot! I suggest using it for all future brake cutoff installs. It's way better. (BTW, LOVE THE BIKE, Johnny! Thank you!)
@@ClayRoe that’s a great tip Clay!
@@ClayRoe which jb weld did you use?
@@JohnnyNerdOut J-B Weld 8276 KwikWeld Quick Setting Steel Reinforced Epoxy - Dark Grey 2 oz
Super duper ultra mega noob question - 4:10 - am I to understand these mid drives can use throttle without pedal movement? If so, is that an inherent feature to all mid drives, or just certain ones. Because I was always led to believe only hubs could use throttle.
Only a feature of aftermarket mid drives 😃. And yes, it’s awesome. 👍
@@JohnnyNerdOut Cool, thanks! You've made a believer out of me.
👍Nice one J keep on biking ! Tom in michigan
I wonder how much longer we will be able to buy BBS02s and BBSHDs. Replacing them with something that has to be used with a Bafang Battery. Yikes.
the time is prime to buy a backup BBSHD controller. You can modify it to fit in the M625 and it will work like a BBSHD
Geeese 40mph, my 50cc scooter only went that fast down hill
this is a quality build
That's my dream build there .
WOOOHOOO! THAT'S muh BIKE!
@johnnynerdout BTW, you mention that you have to press a button to activate the head light. Not true. That display has a sensor. My headlight comes on automatically when it starts to get dark. very nice.
How far would this thing go on one charge?
I would like to purchase the same bike from you. Can you give me a quote? Do I have to buy the bike here and ship to you or can you purchase it in your area, complete the build and ship to me in San Diego?
Fat tires have high rolling resistance, too.
Hey Johnny trouble n paradise. I have hit a wall trying to convert my specialized rockhopper expert 29 into a ebike.
Apparently the eagle 12 speed is a poor choice for the bafang. Just Wanted to let you and your subscribers know. Lekkie bling ring doesn't work even with a 18 mm offset chain ring. The folks at Golden motors assured me it would. 😒
Which chainring did you use?
@@JohnnyNerdOut I tried the lekkie HD 42
@@JohnnyNerdOut cnc7075t6
Are you trying to come in towards the frame more or out?
I had to modify a lekkie 52t ring that is made for a BBSHD motor. My motor is a BBS02. I needed to bring the chain line in towards the frame.
Another option would be to get a rohloff hub ( I know expensive) but you can dial in the chain line really well when it's one straight chain line.
@Keith Benjamin my issue is that my chain ring is about 1 maybe 2 mm from the Chain stay and my chain line is rubbing on the rear derailleur when I have the chain in the middle of the 12 speed cassette. In other words my chain ring is too far outboard even though it is just about touching the chain stay. Wondering if a smaller chain ring with a bigger offset might be the solution,if there's such a thing
The top comment says this but u should do a top ranked ebikes list
Johnny. I couldn't access your website because the vacation announcement won't move.
BTW have a great vacation. Doug
Mobile or desktop?
quit a top speed for have such a small 36 t front sprocket /. must have vary small low tooth gear in 10th
It can't be lower than 11 teeth, so it must be 11
52v helps for sure
Currently building trek roscoe with the bbshd but u have to space the motor out because it hits the frame and now throws the chain line right out.. :( I've not put the chain on yet but can see it having issues
happens a lot with BBS installs, most of the time it needs an offset chainring. Often needs some bottom bracket spacers. Some people will grind off material from the motor if its just a little