Honda CRF100F Piston Kit - Wiseco - Forged 54.50 mm Bore, 9.4:1 CR ('04–'13). This Wiseco Forged Series piston kit is a direct-fit replacement for Honda CRF100F models from 2004 to 2013, built for riders who need dependable, serviceable engine components.

The kit ships complete with a forged piston, wrist pin, rings and circlips so you have everything required for a standard top-end rebuild. Forged construction provides better fatigue resistance than typical cast pistons, helping the piston withstand the thermal and mechanical stresses of regular trail or recreational use. The 54.50 mm bore and 9.4:1 compression ratio match commonly used specifications for the CRF100F, making this kit a practical choice for restoration, maintenance or modest performance upgrades while retaining reliable combustion characteristics.

Features

• Wiseco forged piston for improved durability under cyclic loading
• Complete package: piston, wrist pin, rings and circlips included
• 54.50 mm bore size matched to '04–'13 CRF100F requirements
• 9.4:1 compression ratio compatible with stock and common builds

If you have fitment questions or want advice on selecting related components, call us directly at 512-982-9393 (TX) or 562-981-6800 (CA). We operate two locations in Austin, Texas and the Los Angeles, California area and offer on-site installation and customization services at both shops. If you plan to purchase multiple items, contact us for possible shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov