PISTON KIT 04-07 CRF250R 78.00, WISECO 4829M07800B HONDA MX
Wiseco Piston Kit 4829M07800B for Honda CRF250R (2004-2007) and CRF250X (2004-2015). B Size, 77.95mm bore, 12.9:1 compression ratio. Forged pistons offer superior strength and durability for extreme racing conditions compared to cast pistons. Specifications: 249 cc displacement, 78.00 mm actual bore, 52.20 mm stroke, 1 cylinder, 12.8:1 actual compression ratio. Part number 56-W4829.B.WI. Weight 252 grams.
- SKU
- 56-W4829.B.WI
- Brand
- Wiseco
- Availability
- In Stock (1)
FULL DESCRIPTION
Wiseco Forged Piston Kit for Honda CRF250R and CRF250X
This Wiseco Piston Kit is engineered for the demanding conditions of extreme racing. Featuring a forged construction, this piston offers superior toughness and durability compared to cast pistons, making it ideal for high-performance motorsport applications. Forged pistons possess condensed grain structure aligned to the part's features, resulting in enhanced mechanical properties and resistance to impact and fatigue, crucial for preventing catastrophic failure under extreme stress.
Key Features:
- Forged construction for maximum strength and durability
- Designed to withstand extreme racing conditions
- Optimized strength-to-weight ratio
- Actual Bore: 78.00 mm
- Actual Compression Ratio: 12.8:1
- B Size Piston
This kit is designed for a 249 cc displacement with a standard bore of 78.00 mm and a stroke of 52.20 mm. The compression ratio is specifically set at 12.9:1 for optimal performance.


