Excellent vid - thank you. My front bearings have just died after 4,500 miles, which doesn't seem like a lot. It looks like Fulcrum brought out an upgraded seal called DRP seal, which adds extra protection - the cost about a fiver.
I have the Fulcrum racing 400 which do not have the large washers. On the side with the 2.5 mm lock ring there is a small spacer (.5 mm x 17.2 mm ID x 20.7mm OD) between the bearing and the cap, but everything else is the same as described. Thanks. Very helpful.
Great tutorial. Clear, patient and thorough. I just received my bearings of Ebay (UK) and they were supposed to be correct for post 2015 Fulcrum Racing 5. They are marked '6903RS' so not quite as yours were numbered. I trust they will be right. One way of finding out.....
I am replacing my cheap Fulcrum Racing 5 wheel bearings which really didn't last long - months only. (Bearings used by parent company Campagnolo on my Campag wheels last 1000 times longer). I had read years ago that new cartridge bearings quite often are generic and not greased properly for bike wheels and the extreme impact and torsional loads involved. My new replacements from Ebay were definitely compatible but I thought I would check inside before installing. Sure enough, there was very little grease in each (of the 4) with lots of voids and it was of a thin gelatine like consistency. I took off seals and have packed them both sides full of Motorex 'Bike Grease 2000' . Heavy duty and extremely water resistant grease. These will last a lot longer this time.
Hi do you know if a Fulcrum Racing Quattro LG CX is built the same way? It looks the same, but I can’t get the grey axle cap off either by using mole grips or a vice. I’ve pulled pretty hard so far!
Hi Found this video as I need to replace my bearings. Got some 6903 bearing from a bearing/engineering supplier, but they don't fit. The original bearing in the wheel is 6903 (printed on it) but a different inside diameter. Have you seen this before?
Used this video as reference to order bearings for mine DB6, and fu**d upp. Before ordering these I searched at many places and 61903-2RS (which is exact label on my bearings) was nothing else but 30*17*7. So I was happy receiving them, but after installing into the hub I found out that axle can't get through 30*17*7 bearings (6903).. Googled for longer and found out that 30*18*7 is the right size. They sold at bike24 or bikeinn as a set. Please be careful, and ideally measure your bearings before ordering replacement. Good luck everyone!
Omg, the collar system on the exterior is so stupid on fulcrum hubs, mine is always getting loose even if the screw is tight and is gonna move the wheel slightly left and right...no more fulcrum for me.
@@FreeToCycle I couldn't remove the grey bit. I am only using pliers, but special ones that grip well, and I have strong hands. I will get my mole wrench on the job. @Rohmat Adi did you manage to change or grease your bearings?
I've got fulcrum 6.5 and it doesn't have that 2.5mm adjuster/ lock ring? Mine has a small amount of play so do i have to just knock the bearings out to replace them? Its a 2017' Focus cayo evo.
Hi. Could you do the same thing for racing 5 DB's? Or tell me how it works? I presume it isn't the same as for Racing 5's? I have racing 4DB's and the front bearing needs looking at. Removing the 12mm thru axle adaptor and the bearing pre-loader (2.5mm allen key thing) is no problem. But the axle doesn't slide out. Something must be holding it. I'm not hitting it with a rubber mallet unless I know I should. Nothing on Fulcrum's criminally useless youtube "maintenance" video channel at all for their disc brake wheels. It's the bike industry, after all. Thanks for these anyway.
Rear wheel guide can be found here! th-cam.com/video/HYM9XvRTcWo/w-d-xo.html
Excellent as usual. You give the DIY mechanic so much confidence with your clear step by step approach. Keep up the good work
Big thanks for this clear and easy to follow tutorial.
Brilliant step by step instructions, just changed the bearings on my front wheel without tears. Many thanks for the great video.
I serviced my fulcrum front wheel this morning and I could not have done it without your little tips. Thank you. 👍🏻
Thank you sir! This video helped me so much to replace my front wheel bearings with no special tool. I did this at home.
Good clear guide, made changing the bearings in my racing sport db cx hub straightforward. Thanks.
Great video, easy to follow instructions and got the job done.
Solid explanation - followed and replaced my bearings.
Excellent vid - thank you. My front bearings have just died after 4,500 miles, which doesn't seem like a lot. It looks like Fulcrum brought out an upgraded seal called DRP seal, which adds extra protection - the cost about a fiver.
I have the Fulcrum racing 400 which do not have the large washers. On the side with the 2.5 mm lock ring there is a small spacer (.5 mm x 17.2 mm ID x 20.7mm OD) between the bearing and the cap, but everything else is the same as described. Thanks. Very helpful.
Great tutorial. Clear, patient and thorough. I just received my bearings of Ebay (UK) and they were supposed to be correct for post 2015 Fulcrum Racing 5. They are marked '6903RS' so not quite as yours were numbered. I trust they will be right. One way of finding out.....
Thanks for this - this was a huge help!
I am replacing my cheap Fulcrum Racing 5 wheel bearings which really didn't last long - months only. (Bearings used by parent company Campagnolo on my Campag wheels last 1000 times longer). I had read years ago that new cartridge bearings quite often are generic and not greased properly for bike wheels and the extreme impact and torsional loads involved. My new replacements from Ebay were definitely compatible but I thought I would check inside before installing. Sure enough, there was very little grease in each (of the 4) with lots of voids and it was of a thin gelatine like consistency. I took off seals and have packed them both sides full of Motorex 'Bike Grease 2000' . Heavy duty and extremely water resistant grease. These will last a lot longer this time.
Great tutorial! Thanks.
I keep seeing a Fulcrum Racing 5 and a cheaper Racing 500. However the specs seem identical.
Can someone clear this up for me?
Legend thank you 🙏🏻👌🏻
Nice video! whats the specific bearing number you use? and please make also a video on rear wheel.
6903-2RS
@@FreeToCycle thank you sir for the quick reply, are the front and rear bearing the same bearing number?
Yes same for the rear!
@@FreeToCycle thank you sir. Very much appreciated.
@@FreeToCycle Will any 6903-2RS bearing be suitable or does it need to be Fulcrum OEM only?
Hi do you know if a Fulcrum Racing Quattro LG CX is built the same way? It looks the same, but I can’t get the grey axle cap off either by using mole grips or a vice. I’ve pulled pretty hard so far!
Hi Found this video as I need to replace my bearings. Got some 6903 bearing from a bearing/engineering supplier, but they don't fit. The original bearing in the wheel is 6903 (printed on it) but a different inside diameter. Have you seen this before?
The bearing should be 17x30x7mm
@@FreeToCycle My Fulcrum has 6903 bearings but the bore diam. is 18mm not 17mm so bearings might need to be MR183072RS
Used this video as reference to order bearings for mine DB6, and fu**d upp.
Before ordering these I searched at many places and 61903-2RS (which is exact label on my bearings) was nothing else but 30*17*7. So I was happy receiving them, but after installing into the hub I found out that axle can't get through 30*17*7 bearings (6903).. Googled for longer and found out that 30*18*7 is the right size. They sold at bike24 or bikeinn as a set. Please be careful, and ideally measure your bearings before ordering replacement. Good luck everyone!
What grease do you use?
Mine wobble slightly, how can I fix it?
Omg, the collar system on the exterior is so stupid on fulcrum hubs, mine is always getting loose even if the screw is tight and is gonna move the wheel slightly left and right...no more fulcrum for me.
Try some locktite threadlocker 242!
Nice videos, how about fulcrum racing 7 ? Is that same?
Same for the Racing 7’s
@@FreeToCycle I couldn't remove the grey bit. I am only using pliers, but special ones that grip well, and I have strong hands. I will get my mole wrench on the job. @Rohmat Adi did you manage to change or grease your bearings?
I've got fulcrum 6.5 and it doesn't have that 2.5mm adjuster/ lock ring? Mine has a small amount of play so do i have to just knock the bearings out to replace them? Its a 2017' Focus cayo evo.
th-cam.com/video/-e39MqRGwgs/w-d-xo.html
"... and it does not have this lockring" is a statement, not a question.
Hi. Could you do the same thing for racing 5 DB's? Or tell me how it works? I presume it isn't the same as for Racing 5's? I have racing 4DB's and the front bearing needs looking at. Removing the 12mm thru axle adaptor and the bearing pre-loader (2.5mm allen key thing) is no problem. But the axle doesn't slide out. Something must be holding it. I'm not hitting it with a rubber mallet unless I know I should. Nothing on Fulcrum's criminally useless youtube "maintenance" video channel at all for their disc brake wheels. It's the bike industry, after all. Thanks for these anyway.
I have the video scheduled for release on Monday for the Fulcrum db front wheel!
@@FreeToCycle Oh fantastic. Thanks so much! Above all, Fulcrum owe you a great deal of gratitude. And the rest of us too.
Are the bearings 6903??
Yes!
Cheers Just need a 22mm socket
@@FreeToCycle the bore for 6903s should be 17mm, mine measure 18mm - - mine are marked 61903 2RS [aka 6903] - any ideas why different?
Hello , May I know the exact size of the bearing for this hubs.
Thank you..
Supef