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Wiseco RE823M07700 Racer Elite Piston Kit CR - 4-Stroke 77mm 14.5 1

(2019-2025 Yamaha YZ250F; 2020-2025 Yamaha YZ250FX; 2020-2025 Yamaha WR250F; 2021-2022 Yamaha YZ250F Monster Energy Yamaha Racing Edition)

Manufacturer

Part Number

RE823M07700
Sale Price

$339.99

1 left at this price

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Usually delivered within 2 days

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Product Details

The Wiseco RE823M07700 Racer Elite 4-Stroke Piston Kit is engineered for the serious dirt bike racer demanding factory-level performance from an off-the-shelf piston. Featuring a standard 77.00mm bore and a high-compression 14.5:1 ratio, this piston kit delivers dyno-proven power gains for competitive riding and racing applications. The kit includes the piston, high-quality rings, wrist pin, and circlips — everything needed for a complete piston replacement.

Racer Elite Design Features:

  • 100% Billet Machined: Fully machined from billet for precise dimensions, optimized weight, and a precision-machined under-crown structure
  • Asymmetric Skirt Design: Industry-first asymmetrical skirt minimizes cylinder wall contact, reduces friction, and lowers overall piston weight
  • ArmorGlide® Skirt Coating: Proprietary skirt coating reduces friction for improved performance and extended service life
  • DLC Coated Wrist Pin: Diamond-Like Carbon (DLC) coating on the piston pin delivers Formula 1-inspired friction reduction and wear resistance
  • Enhanced Pin Oiling: Optimized oil passages improve wrist pin lubrication under high-load racing conditions
  • Precision-Fit Lapped Ring & Ring Groove: Custom-lapped compression ring matched to a precision-machined ring groove maximizes ring seal for improved power output
  • Pressure Seal Groove: Reduces ring lifting and minimizes power loss under high-RPM operation
  • High-Compression Dome Design: 14.5:1 compression ratio optimized for maximum torque and throttle response

Kit Specifications:

  • Bore: 77.00mm (Standard)
  • Compression Ratio: 14.5:1
  • Skirt Coating: ArmorGlide®
  • Pin Coating: DLC (Diamond-Like Carbon)
  • Skirt Profile: Asymmetric
  • Contents: Piston, rings, wrist pin, and circlips

Engineered, tested, and proven for high-level racing applications, the Wiseco Racer Elite line sets a new standard in powersports piston performance. Manufactured in Mentor, OH, USA.

Products specifications

Fits

2019-2025 Yamaha YZ250F; 2020-2025 Yamaha YZ250FX; 2020-2025 Yamaha WR250F; 2021-2022 Yamaha YZ250F Monster Energy Yamaha Racing Edition

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Shipping took longer than expected as I paid for expedited shipping. I reached out to ask why it wasn't sent two day and got no reply. The customer service could really use improvement and this is reflected in multiple reviews. However, the products arrived safely and as described. I'm very satisfied with the pricing as well. At the end of the day, that's the most important thing.

THMotorsports always has the lowest prices and shipping. Just completed my second order with them and will continue to purchase from them. Shipping on first order was quick and left their building the day after ordering.

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Could not get ground shipping and drop shipping insurance.

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