I have an Uberbike GXP BB, SRAM s1000 cranks, and a 73mm BB frame (’16 Whyte 901)
When I install it as per the instructions (1 2.5mm BB spacer on the NDS, 1 5mm axle spacer on the DS) and tighten the cranks, the bearings obviously have way too much preload and barely turn.
What’s going on? There are definitely no bearing Shields from the old BB on the cranks.
If I assemble the cranks off the bike, and tighten up, the distance between faces appears to be 100mm.
However, when I measure the distance from BB face to face it appears to be about 96.6mm. when adding in the 5mm axle spacer, it seems obvious why the bearings are binding.
The red GXP spacer is installed correctly (from the inside of the NDS bearing)
Anyone else had similar? I’d prefer to find the source of the issue (I suspect I’ve done something stupid) before just custom shimming it from the spares box..
I didn’t have this problem with the previous BB (Hope).