Originally Posted by lexusbest

I meant the S3 arms would cost the car corner speed for gaining some traction.

Just for clarifying.
- 68mm bones do not use shims and are used with S3 arms
- 69mm bones do use 2x0.5mm = 1mm shim and are used with L5 arms.
- S3 arms are +-81mm long. (+-73mm between holes)
- L5 arms are +-84mm long. (+-75mm between holes)
- L5 most inner shock mounting point is close to second outer position on S3 arm.

That said, you could probably run those 69mm bones with removed shims if you go with the widest pills available






Not much to tell here.

- SF2 hubs are 13mm wide
- CAL3.1 hubs are 17mm wide.

Looks like SF2 hubs do not use the spacer between bearings, so the inner bearing sits closer to the outer bearing.

- On CAL3.1 hubs the hex sits 4mm wider than SF2. That would be a total of -8mm on rear width from my measurements, but the bone needs a shorter axle