Wiseco Racers Elite Suzuki RM85 02-19 1909CS Piston Kit

SKU: WISRE901M04900

Powersports Piston and Ring Kits

WIS Piston Sets - Powersports

Wiseco

Wiseco Racers Elite Suzuki RM85 02-19 1909CS Piston Kit

SKU: WISRE901M04900

Powersports Piston and Ring Kits

WIS Piston Sets - Powersports

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Description

Wiseco's Racer Elite series forged 2-stroke pistons deliver industry-first 2-stroke piston design and technology to perform in even the most serious racing conditions. These are the first 2-stroke pistons to be forged from 2000 series alloy, providing even greater tensile strength. ArmorPlating surface treatment on the crown, in the ring groove(s), and in the pin bores protects from harmful operating conditions, while Wiseco's proprietary ArmorFit skirt coating conforms to the cylinder bore for optimized fitment and performance. For the serious 2-stroke rider and racer, Racer Elite is the only choice.

Part Type

Engine Piston

Data: v4.2 - Upd: 2026-10-12 07:11:33

Features

ArmorFit skirt coating conforms to the cylinder bore for optimized fitment, translating to optimized performance
ArmorPlating surface treatment on crown, in ring groove and pin bores protext from harmful detonation, friction wear, and ring micro-welding
Designed for full-race 2-stroke applications
Engineered, forged, and machined in the USA in Mentor, OH
First 2-stroke piston to be forged with 2000-series alloy, providing greater tensile strength
High-quality ring(s), wrist pin(s), and circlips included

Specifications

Product Attributes - Brand: Wiseco
Product Attributes - Manufacturer's Part Number: RE901M04900
Product Attributes - Part Type: Powersports Piston and Ring Kits
Product Attributes - Product Line: Wiseco Powersports 2-Stroke Racer Elite Series Pistons
Product Attributes - UPC: 193564138101
Product Attributes - Piston Material: Forged aluminum
Product Attributes - Bore (in.): 1.929 in.
Product Attributes - Bore (mm): 49.000mm
Product Attributes - Stroke: 46.80mm
Product Attributes - Wrist Pin Style: Floating
Product Attributes - Pin Diameter (in.): 0.551 in.
Product Attributes - Wrist Pin Retainers Included: Yes
Product Attributes - Top Ring Thickness: 1.0mm
Product Attributes - Top Ring Material: Steel
Product Attributes - File Fit: No
Product Attributes - Gapless: No
Product Attributes - Gaskets Included: No
Product Attributes - Quantity: Sold as a kit.

Reference Information

Brand Name/s	Wiseco
StreetFX SKU	wisRE901M04900
SFX Item ID	4068255
Supplier Item Code	4068255
Manufacturer SKU	RE901M04900
Manufacturer UPC	193564138101
Alternative References	RM85, 1909CS