Light weight design made of high quality aluminum bar stock. Polished brushed finish. Comes with 4mm collet. Reverse Pitch Version.

Fits 5/32"(4mm) shaft diameter. Weight: 1.07oz(30g) for Cobalt 05, 15, 20, brushless motors.

ProSpin spinners are made from high quality bar-stock for strength. They won't crack like cheap cast aluminum spinners do.

ProSpin spinners are also 30% lighter than cast aluminum.

All spinners include a shaft bushing, prop nut, and bolt.

All spinners are polished to a brushed metal finish.

Notes on Ordering:

1. Find out the size of the prop nut you need.

2. If you need a different prop nut, you need to order it separately.

3. Some engines, i.e. Saito engines, require a bushing that is larger than the nut.