Originally Posted by
BruceMetras
Thanks! Yes, it upshifts automatically when my cadence reaches around 90 (14mph) ...<snip>... you can modify the shift points by adjusting a little torsion spring inside the hub.... it's a cool piece, I'm hoping for long life!
Hi Bruce, beautiful bike! I'm putting a blue Sachs Automatic back in service, and I'm interested in how you modified the spring to shift later.