Finally back in stock

Full Avenger 85 engine kit!

True 85cc.

Huge ports. Excellent timing. Balanced crank.

Designer of cylinder: Ken Hinson/ Kelly Cansler

Faster than phantom 85 and more powerful.

52mm piston. Phantom 85 / YD100 killer.

Full kit. Game changing engine kit!

Shipping cost on eBay is higher than California Motorbikes 

Specs:

52mm bore, 40mm stroke

12mm wrist pin

New YD85cc rod

Made in the Yuandong Engine Factory, same factory that made the orginal Skyhawk motors

Bigger intake compared to phantom

Bigger exhaust compared to phantom

Bigger transfers compared to phantom

Better timing compared to phantom

Large exhaust pipe, slightly larger than phantom

Excellent casting quality with a heavy, large head that is 100 grams heavier than a stock 80cc head

CNC heads available

Cools way better than a phantom, even when stock.

Gasoline operated products are NOT compliant with Environmental Protection Agency ( E.P.A. ) or California Air Resources Board (C.A.R.B) for the use on/off Public roads. Upon purchase, the buyer agrees to use products for racing (closed-course competition) only and NOT for on/off public roads.