THM Clavicula Classic mounting

Discuss light weight issues concerning road bikes & parts.
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Attermann
Posts: 372
Joined: Sun Jan 05, 2014 11:04 pm
Location: Denmark

by Attermann

Hello everyone

i'm about to mount a THM Clavicula Classic crank on my BB86 frame, i have bought a pair of Rotor 4130 bearings, but it seems that the flance is too large on those bearings compared to the THM BB, has anyone tried this combo before, or do i need the THM speficik bottom bracket.

Thanks.

spdntrxi
Posts: 3002
Joined: Sat Jul 20, 2013 6:11 pm

by spdntrxi

I dont know if the classic is like the current SE model... but there is a taper to the NDS portion..which makes the shaft too thin on the BB. The SE version has this little plastic shim to make up for it. I use the THM BB w/shim, but have used the Easton 30mm BB and with the shim it was fine.

by Weenie


Attermann
Posts: 372
Joined: Sun Jan 05, 2014 11:04 pm
Location: Denmark

by Attermann

i don't think there is a plastic shim on the classic, i can't see any in the manual, it's more if the width is too much, because it seems that the THM BB, is a bit narrower.

Attermann
Posts: 372
Joined: Sun Jan 05, 2014 11:04 pm
Location: Denmark

by Attermann

I can tell you that it won’t fit, the axle isn’t long enough for those bearings, you need the original THM bottom bracket

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