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This is the most important upgrade you can make for an adult sized rider
Also see the Info section for installation info and other info on our performance products
TBparts 64mm Big Bore Kit:
If ignition timing is adjustable it should be adjusted to the minimum
Rise 190mm
Bill's Pipes RE 13 Exhaust - CRF110 Body This is the most importantBill's Pipes RE 13 Exhaust 19 Present CRF110 If you are looking for every ounce of power to squeeze out of your pit bike but dont want to spend a fortune, look no further. The Bill's CRF full system delivers performance that is unmatched for the price, with huge horsepower and torque gains across the board. Lighter, stronger, and more powerful than the stock system, the construction of this system is unrivaled. Unique aluminum muffler shape allows for
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