Does anyone happen to know the bearing numbers for this hub pls. I plan to get some as I reckon they’re almost done, but in NTN or similar flavours and can’t be risking dismantling things too much before Tuesdays ride booked with John on here.
Please, thanks.
Bontrager BOOST front hub bearing sizes?
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- Posts: 10327
- Joined: Tue Sep 20, 2016 8:19 am
- Location: Dewsbury, West Yorkshire
Re: Bontrager BOOST front hub bearing sizes?
Oh well, guess I’ll know soon enough when I get home and remove the end caps. Too hasty, as if I would have managed to order and have em delivered by Tuesday anyway 

- fatbikephil
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Re: Bontrager BOOST front hub bearing sizes?
I just happen to have the front wheel off the Lowside - bonty Line 40 wheels. Front bearings are 28x17x7
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Re: Bontrager BOOST front hub bearing sizes?


Nice one Phil. MR1830 LLB. Both sides right, thanks v muchfatbikephil wrote: ↑Sun Feb 23, 2025 9:07 pm I just happen to have the front wheel off the Lowside - bonty Line 40 wheels. Front bearings are 28x17x7