Bontrager line comp rear hub help

simonhuscroft

Posts: 349

Free Member

Topic starter

[#11449993]

Hello,

Anyone changed the bearings on a rear Bontrager line comp hub (rapid drive boost type) and know the bearing sizes? Can’t find them anywhere.

I think it’s the freehub ones that need replacing as they feel and sound horrid under load.

Thanks

Posted : 28/10/2020 12:38 am

cx_monkey

Posts: 216

Full Member

pretty sure they're 6803 in the freehub (measure them if you're unsure - 26x17x5mm), hub body are 6903 (30x17x7). Consider upgrading to the 108 engagement freehub (by doubling the pawls) at the same time:

TREKBIKES.COM "https://www.trekbikes.com/gb/en_GB/equipment/cycling-components/bike-hubs-and-hub-parts/bontrager-rapid-drive-108-free-hub-pawls/p/21957/?colorCode=greylight"

Bontrager Rapid Drive 108 Free Hub Pawls - Trek Bikes (GB)

Enhance your cycling experience with Bontrager Rapid Drive 108 Free Hub Pawls. Shop now!

Posted : 28/10/2020 11:03 am

cx_monkey

Posts: 216

Full Member

you'll need another set of springs too to do that:

TREKBIKES.COM "https://www.trekbikes.com/gb/en_GB/equipment/cycling-components/bike-hubs-and-hub-parts/bontrager-rapid-drive-108-free-hub-pawl-springs/p/21958/?colorCode=greylight"

Bontrager Rapid Drive 108 Free Hub Pawl Springs - Trek Bikes (GB)

Enhance your cycling experience with Bontrager Rapid Drive 108 Free Hub Pawl Springs. Shop now!

Posted : 28/10/2020 11:04 am

TheGhost

Posts: 824

Free Member

I’ve got a new XD driver freehub for this hub that I’ll sell cheap. I switched to Microspline from new.

Posted : 28/10/2020 11:40 am

stevedoc

Posts: 2015

Free Member

Simon check the drive side bearing in the rear hub the bearings are poor ive had to change both in my 2 sets

Posted : 28/10/2020 11:49 am

simonhuscroft

Posts: 349

Free Member

Topic starter

Cheers all

Posted : 28/10/2020 3:11 pm

[Closed] Bontrager line comp rear hub help