15mm diameter. For 3/32" / 2.38mm axles.

Recommended to use with 7mm pinions (PI7012E, PI7013E, PI7014E) or 6.5mm pinions (PS10, PS11, PS12, PS13, PI6510E, PI6511E, PI65112E, PI6513E) and a spacer (PA51).

Sold individually.

Slot.it plastic gears are made with a high-tech polymer plastic that has been optimized for reliability, smoothness, and efficiency. The aluminum hub keeps the gear lightweight.