Primary Gear for Z125 Pro
Part Number: TBW0858
This primary gear takes almost 2lbs. of weight off from the stock Z125 primary gear!
Stock gear = 38.16oz
Lightened Gear = 7.26oz
(1LB = 16oz)
This gear is known to have a slight gear whine when decelerating. This is normal for this gear. If you want a completely silent option please go with the Takegawa primary gear.
Wakes the little bikes up. Different machine