▲ 3 r/eBikeBuilding
Hey guys,
Looking at the Varstrom TSDZ2B (36V 250W). I have no interest in breaking speed limits or "hot-rodding" the motor.
I’m strictly looking at Open Source Firmware (OSF) for:
Efficiency: Better battery range through optimized motor timing.
Heat Control: Better thermal management to prevent burnout on hills.
Refinement: A smoother torque sensor response.
In 2026, is the stock firmware still running "hot" and inefficient, or has Tongsheng fixed the motor maps? Is it worth voiding the warranty just for a more reliable, cooler-running motor?
Thanks!
u/FroyoAbject — 21 days ago