{"product_id":"wossner-8303dc-piston-kit-2018-2021-sherco-125-se-r-sc-standard-size-c","title":"Wossner 8303DC Piston Kit - 2018-2021 Sherco 125 SE-R SC Standard Size C","description":"\u003ch3\u003eWossner 8303DC Standard Series Forged 2-Stroke Piston Kit - Standard Size C\u003c\/h3\u003e\n\n\u003cp\u003eExtend the life and performance of your Sherco engine with the Wossner 8303DC Piston Kit. Specifically engineered for the 2018-2021 Sherco 125 SE-R and SC models, the \"Size C\" forged kit is the professional solution for cylinders that have logged high hours. At Moto-House MX, we know that technical enduro riding puts unique stresses on small-bore engines; this +0.02mm Size C kit provides the precise fitment needed to restore compression and eliminate power loss in bores that have naturally expanded from use.\u003c\/p\u003e\n\n\u003cp\u003eForged from high-performance aerospace aluminum alloy, the 8303DC is significantly more resilient to thermal stress than stock cast pistons. It features a dual-ring configuration, providing a superior seal and enhanced heat dissipation—essential for keeping your Sherco cool and powerful during slow-speed technical climbs or high-RPM transfer sections. To ensure maximum longevity, Wossner applies a permanent molybdenum disulphide skirt coating that reduces friction and prevents piston rock. Precision-machined for 54.02mm bores, this 53.95mm piston kit lets you keep your Sherco at the front of the pack.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: Wossner 8303DC Piston Kit\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cb\u003eStandard Size C (53.95mm):\u003c\/b\u003e Precision-machined for 54.02mm bores to compensate for moderate cylinder wear and restore factory-correct tolerances.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eDual Ring Configuration:\u003c\/b\u003e Delivers an exceptional secondary seal and improved cooling, ensuring consistent power delivery in extreme off-road conditions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eAerospace-Grade Forging:\u003c\/b\u003e Denser and stronger than OEM alternatives, offering increased resistance to fatigue and high-heat expansion.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eLow-Friction Skirt Coating:\u003c\/b\u003e Permanent molybdenum disulphide treatment reduces internal drag for a quieter, smoother running engine and extended cylinder life.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eOptimized Lightness:\u003c\/b\u003e Expertly machined to shed unnecessary weight while maintaining structural integrity for lightning-fast throttle response.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eComplete Assembly:\u003c\/b\u003e Includes the forged Size C piston, performance rings, wrist pin, and circlips.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e Sherco 125 engines are high-performance machines that require tight tolerances for peak torque. If your cylinder has seen significant trail time and measures beyond the original factory Size A or B specs, moving to a Wossner Size C (53.95mm) is the expert way to restore your compression without a full replating service. Always use a precision bore gauge to confirm your cylinder measures 54.02mm before installation. For a professional-grade rebuild, always install with a fresh top-end gasket kit and premium 2-stroke oil to protect your forged assembly.\u003c\/p\u003e\n\n\u003ch3\u003eFitment List\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" style=\"width: 100%; border-collapse: collapse;\"\u003e\n    \u003cthead\u003e\n        \u003ctr\u003e\n            \u003cth\u003eYear Range\u003c\/th\u003e\n            \u003cth\u003eVehicle Brand\u003c\/th\u003e\n            \u003cth\u003eVehicle Model\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e2018-2021\u003c\/td\u003e\n            \u003ctd\u003eSherco\u003c\/td\u003e\n            \u003ctd\u003e125 SE-R Racing\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e2019\u003c\/td\u003e\n            \u003ctd\u003eSherco\u003c\/td\u003e\n            \u003ctd\u003e125 SC\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e2018\u003c\/td\u003e\n            \u003ctd\u003eSherco\u003c\/td\u003e\n            \u003ctd\u003e125 SE-R\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ: When is it time to move to a Size C piston?\u003c\/b\u003e\u003cbr\u003e\nA: Size C (53.95mm) is typically used when your cylinder bore has worn slightly larger (to 54.02mm). This larger diameter ensures you maintain the correct piston-to-wall clearance, preventing \"piston slap\" and maintaining maximum horsepower.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eQ: Does this kit fit the Sherco 125 SC cross-country model?\u003c\/b\u003e\u003cbr\u003e\nA: Yes, this kit is fully compatible with the 125 SC, 125 SE-R Racing, and the standard SE-R models within the specified years.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eQ: Why choose forged over cast for enduro riding?\u003c\/b\u003e\u003cbr\u003e\nA: Forged pistons are much stronger and more resistant to cracking under the high temperatures and fluctuating loads common in technical enduro riding.\u003c\/p\u003e\n\n\u003ch3\u003eRecommended Pairings\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cb\u003eComplete Top End Gasket Set:\u003c\/b\u003e Ensure a perfect seal and maintain correct engine timing with fresh gaskets.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eMotul 800 2T Factory Line:\u003c\/b\u003e High-performance lubricant to keep your new forged piston protected in high-stress racing conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eRestore your machine’s power and precision today. Buy now at Moto-House MX!\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eMoto-House MX – Choice of Champions\u003c\/b\u003e – is located in Clermont\/Montverde, FL. The Best Motocross\/UTV \u0026amp; ATV Shop in Central Florida. Stop by our local store in Montverde, FL or enjoy lightning-fast shipping across the USA.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Wossner 8303DC Piston Kit\",\n  \"image\": [],\n  \"description\": \"Premium Wossner 8303DC Forged 2-Stroke Dual Ring Piston Kit for 2018-2021 Sherco 125 SE-R, SE-R Racing, and SC. 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