OEM Boosted 105's - Brand New - Set of four (4)
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Aluminum 56 Tooth Pulleys (OEM Boosted Pulley Tooth Count): Increased top speed by 4-5mph. Reduced acceleration.
Aluminum 63 Tooth Pulleys: Increased top speed by 2-3 mph. Slightly reduced acceleration.
Aluminum 68 Tooth Pulleys: Stock top speed. Stock Acceleration.
Note: You do not need to purchase new bearings, belts, or pulleys to use these wheels. You can use the parts from your previous Boosted wheels, they are compatible!