User Tip: If you're unsure of your vehicle type, you may skip the machine type selection box.
Please select make, model and year
Your best source for piston kits and big bore kits at discount prices.
David in MI
I know there's more expensive brands out there, but I have had good luck with Pro X. If I was a pro racer going non stop wide open maybe I'd want something different, but for me Pro X is good enough.
DAN in VA
Wiseco makes some great products and this is one of them!
James in MT
Perfect fit and works great
Great product at a great price. Fit perfect and is working great...
cody in MO
Put this on my bike along with the Dr. D radiator lowering kit and the two together made my bike handling a lot better than it ever did before. Recommend both kits for anyone with a 10-13 yz450
DAVID in CA
Will always use wiseco.