Ultimate Racing nitro engine throttle return spring

Modelix Racing have introduced the Ultimate Racing throttle return spring for .12 to .21 nitro engines. Attached to the carburettor throttle linkage ball the spring will ensure the carb is closed in the event of a lost or broken linkage or during electronic failures, sending the engine to idle and thus saving the vehicle from becoming uncontrollable. The spring is usable with on-road and off-road engines alike.

Source: Modelix Racing [modelixracing.com]