Wiseco Pistons: Yamaha TTR90/TTR125/TTR250/XT250/YZ250F/WR250F 99-2011


SKU: N/A Category:


Waseca MX Pistons
While Wiseco got its start in 2-stroke performance, the Wiseco team has remained at the forefront of powersports performance through
every era and evolution, including the development of high-performance 4-strokes. Today, Wiseco offers a range of forged 4-stroke
pistons covering everything from the casual rider looking for durability to the professional-level racer competing for wins.

Wiseco Pro-Lite
• The Forged 2-stroke piston that started it all
• Great value for reliable fun factor • Refreshed performance from the track to the trail •
Optomizing forging design for strength optimization • Extra lightening operations for enhanced
throttle response • Wrist pin, rings and circlips included

Wiseco GP Series
• Designed for Endurance/High RPM Applications
• Designed with optimized features for long service life and top-end power
• Electra-Coated crown, ring groove and pin bore resists potential wear, combustion heat damages,
and ring micro-welding • ArmorGlife skirt coating reduces friction to optimize performance potential
• Wrist pin, rings and circlips included

Wiseco Racer Elite
Designed for Full-Race Applications
• First 2-stroke piston to be forged with 2000-series alloy, providing greater tensile strength
• ArmorPlating surface treatment on crown, in ring groove and pin bores protext from harmful detonation,
friction wear, and ring micro-welding • ArmorFit skirt coating conforms to the cylinder bore for optimized
fitment, translating to optimized performance • Wrist pin, rings and circlips included

Wiseco Forged Series
Multi-Purpose Riding and Racing
• A complete range of forged pistons engineered for each specific 4-stroke powersports engine
• Convering hundreds of applications across ATV, Dirt Bike, Street, Snowmobile, UTV, V-Twin and more
in a variety of bore size and complression ratio options • Forged material optimizes strength and service
life • Performance enhancing features varied across applicable applications to maximize durability and
power • Wrist pin, rings and circlips included

Wiseco Racer Elite
Designed for Full-Race Applications
• Engineered to be a complete racing piston package to compete at the highest levels
• Industry-first features including asymmetrical skirt, lapped ring and ring groove operation to minimize
operating friction and maximize ring seal for overall improved power
• CNC-machines, billet construction for improved strength to weight ratio
• Rings, circlips, and DLC-coated wrist pin included

Additional information


TTR90 00-2007, TTR125 00-2021, TTR250 99-2006, XT250 13-2023, YZ250F01-2004, WR250F 01-2004, WR250F 05-2013, YZ250F 01-2011, WR250F 01-2013, YZ250F 01-2004, YZ250F 05-2007, YZ250F 08-2011

Piston Type

Standard, ArmorGlide, Strutted Forging


11:1, 10.5:1, 13:1, 12.7:1, 13.2:1, 12.5:1, 13.5:1, 14:1


47.00mm, 47.50mm, 54.00mm, 54.50mm, 55.00mm, 73.00mm, 73.50mm, 74.00mm, 74.50mm, 75.00mm, 76.00mm, 77.00mm, 83.00mm, 79.00mm


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Make Model Year
Yamaha TTR 90 2000 - 2007
Yamaha TTR125 2000 - 2021
Yamaha TTR250 1999 - 2006
Yamaha WR250F 2001 - 2004
Yamaha WR250F 2001 - 2013
Yamaha WR250F 2005 - 2013
Yamaha XT250 2013 - 2023
Yamaha YZ250F 2001 - 2004
Yamaha YZ250F 2001 - 2011
Yamaha YZ250F 2005 - 2007
Yamaha YZ250F 2008 - 2011
To top