motors PU polyester urethane sleeves are replaceable. This item comes with PU and metal sleeve and bolts you need to assemble it to your motor core.

90mm Fit for V1&2 / V3 / V3 ER / MINI 2 / MINI 2 ER /

100mm Fit for NLS PRO / AWD PRO

Notice: Not compatible with Shuffle S (V4S) / MINI 2S / V5 / MINI5 / VOYAGER /VOYAGER X / HURRICANE VADER / HURRICANE SERIES