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Your cart is empty.Wiseco 52.50 mm 2-Stroke Motorcycle Piston Kit with Top-End Gasket Kit features the highest quality forged pistons for Dirt Bikes, ATV's, Snowmobiles, Outboard Marine and Motorcycles in the USA. Wiseco is unique because all of the pistons are forged in house and all of the forge tooling is produced right here. This allows a control of all aspects of the manufacturing process from raw bar to skirt coating finished parts. In addition, in-house dyno testing gives Wiseco the ability to develop state-of-the-art technology such as new shapes, coatings and components and lead the industry through rigorous research and development. Linking all segments of Wiseco's organization through design, testing, manufacturing and distribution helps to fulfill market needs with minimum lead-times. Extreme racing conditions demand the strength and toughness that only forged pistons can offer. Compared to cast pistons, forgings are tougher and more durable and will stand up to the abuse that high performance motorsport applications require. Most castings are brittle, have no grain structure and tend to fail catastrophically when the material yield strength is exceeded. Forgings have condensed grain that is aligned to the features of the part, which produces higher mechanical properties and resistance to impact and fatigue. Each forging is designed to optimize the strength-to-weight ratio and maximize performance.
Don
Reviewed in the United States on February 1, 2023
Nice piston exzactly as I hoped for plus it came a day earlier than it was supposed to so that was a big plus for us. My sons kx100 is race ready again!
MARK.F
Reviewed in the United States on November 1, 2021
Fit good in my Kx80 ( kx100) with a big bore kit
Hericles Cardoso
Reviewed in the United States on March 9, 2019
Top end was installed professionally and blew up after one ride
david jamaal hale
Reviewed in the United States on March 18, 2019
The gaskets are a bit too small in the wrist pin will not go into the Piston at all
tristan reynolds
Reviewed in Canada on April 19, 2019
Wrong size for my bike even though it said it fit...
shannon
Reviewed in the United States on April 18, 2019
2004 KX100. Works mint after i blew it up with this kit. New gaskets, piston, rings, circlips, crank bearing ect. Totally pleased.
justin
Reviewed in the United States on January 18, 2016
Fit in perfect in a kx100 and shipped in a day . A+
Brian
Reviewed in the United States on June 5, 2015
GREAT
SWFL Carl
Reviewed in the United States on December 6, 2013
Shopped this kit hard. KX-100. Decided to to with forged Wiseco piston. Just a touch more money than the cast competitors. First piston job for me... followed service manual and this guy slide right in. The old rings were wore out - and piston showing some age to it. Very satisfied entire kit. Included the power valve seal and gasket. Deliver in 2 days via prime - how can you beat that as well. Great product and great valve.
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