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Your cart is empty.Wiseco 47.50 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.
rusty
Reviewed in the United States on May 7, 2024
I Bought the top end kit and installed it. Heat cycled it and the next day I road it for 45 min and the bike just died. Took the top end apart and found out the piston turned in to a little grenade. It also ruined my cylinder. I WILL NEVER buy this product again!
R.Relyea
Reviewed in the United States on August 4, 2022
Everything arrived and fit as expected. Great instructions, bike runs strong!
Dylan Butler
Reviewed in the United States on November 9, 2022
Came in 3 days early great quality from what I can tell seems like it’s not gonna have any issues
José Miguel Henao
Reviewed in the United States on October 7, 2022
Los componentes de excelente calidad. Incluye todos los empaques necesarios para hacer el cambio del pistón y el anillo. Además incluye los empaques para la salida del mofle. Sentí que la moto mejoró la compresión y el torque de la moto . El pistón que retiré era el B
Customer
Reviewed in the United States on July 24, 2020
It didn’t fit my bike it was the wrong size it’s too big it’s a 47.50 I need 47.45
Joe
Reviewed in the United States on June 5, 2020
Very unhappy with purchase got everything and gave me the wrong piston ring was a 50 mm instead of a 47.50 had to go and buy another piston ring very disappointed
MICHAEL M.
Reviewed in the United States on May 13, 2019
First class product...from shipping, to unboxing, to quality of materials! I will buy again.
chris yeager
Reviewed in the United States on September 26, 2018
Easy quick rebuild kit for the top end of my YZ85.
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