This 34 mm Circular Heat Sink for Motor is to cool down Motor and make it operate safely. The aluminium heat sink reduces the risk of hardware failure because of overheating of the motor and adds long-life to it. This Heat sink has 34 mm internal diameter which can be perfectly fit for 34mm motor body diameter. Features: Prevents overheating of Motor Absorbs heat quickly Fast cooling Quantity of blade: 20 Material: Aluminum Color: Blue Package includes: 1 x 34 mm Circular Heat Sink for Motor Category: E-Bike