Welcome Pablo!
Strida manual-0617 revised (2010) page 17
How to adjust outer disk brake pad?
@cubicapple and Tom__
Many thanks for the infos!
To achieve more braking power it will be also useful to try different rotor/brake pad combinations (appropriate brake pads are here).
Using 160mm instead of 140mm rotors at the front wheel requires an IS2000 + 20mm adapter;
cubicapple wrote that Avid’s adapter did not work properly -
read here, that it might be tricky to make the Hope adapter HBIS20 (and some rotors) fit.
Another adapter, Brake Authority A20IS, compared to the Hope’s:
It seems that this adapter will not fit (not tested by now).
My suggestion: Use new Strida calipers, maintenance them carefully and correctly.
Try different brake pads at Original Strida and other (Hope, Ashima, DirtyDog,…) rotors.
Please note that most common rotors do NOT fit at the rear wheel (some can be modified to fit, but not all).
If you want a 160mm front rotor use the Hope’s adapter, but be prepared for some filework.
(That must not be necessary, it might be…)
Good luck!