Torp Thumb Throttle is used for regenerative braking and reverse.

It is compatible with:

TC500 controller for SurRon Light Bee
-TC500 controller for Talaria MX3 / MX4
TC1000 controller for SurRon Light Bee
-TC1000 controller for SurRon Ultra Bee

The wiring loom is not included!

IMPORTANT for SurRun Light Bee and Ultra Bee users: In case you own a controller with a 3 or 4-connector wiring harness, you have to purchase a 5-connector Replacement Wiring Loom:
Wiring Loom for SurRon Light Bee
Wiring Loom for SurRon Ultra Bee

This does not apply to Talaria MX3/MX4 users!