REDS Racing - 521 SPORT Temp Comes as a pair

Comes as a pair

and are available in a variety of tooth count options to fine tune the gear ratio of your model

-Weight: ~22g (excluding wiring and fan)

Package Include:

REDS Racing - 521 SPORT Temp Comes as a pairThe REDS 521 Sport . 21 Off Road Competition Buggy Engine offers a balance of innovation, quality and performance at a mid range street price. The 521 Sport features technical changes in the 5 port sleeve, combined with updated materials to offer users high reliability, tuning stability and fuel mileage. The 521 Sport guarantees excellent performance at a reasonable price. It is recommendable to match the engine with the REDS 2143 + M, or XONE Torque