{"product_id":"straightline-performance-single-pipe-mountain-clutch-kit-6-000-ft-polaris-rmk-sks-assault-850-2019-2021","title":"Straightline Performance Single Pipe Mountain Clutch Kit 6,000+ ft Polaris RMK\/SKS\/Assault 850 2019-2021","description":"\u003ch2 class=\"product_title entry-title\"\u003eStraightline Performance Polaris RMK \/ SKS \/ Assault 850 Single Pipe Mountain Clutch Kit | 6,000+ ft with Straightline Performance Single Pipe\u003c\/h2\u003e\n\u003cp\u003eThe Straightline Performance Polaris RMK, SKS, and Assault 850 Single Pipe Mountain Clutch Kit is specifically calibrated for machines equipped with a Straightline Performance Single Pipe exhaust system and operated above 6,000 feet elevation. Featuring Straightline’s fully adjustable weight system, custom-designed mountain helix, and two performance-calibrated clutch springs, this package delivers stronger acceleration, improved throttle response, faster backshift, and exceptional deep snow performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote: Straightline Performance Single Pipe exhaust system sold separately.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"woocommerce-tabs wc-tabs-wrapper\"\u003e\n\u003cdiv class=\"woocommerce-Tabs-panel woocommerce-Tabs-panel--description panel entry-content wc-tab\" id=\"tab-description\" role=\"tabpanel\"\u003e\n\u003cp\u003eThe Straightline Performance Polaris RMK, SKS, and Assault 850 Single Pipe Mountain Clutch Kit was developed specifically for riders operating at elevations above 6,000 feet and utilizing a Straightline Performance Single Pipe exhaust system.\u003c\/p\u003e\n\u003cp\u003eThe Straightline Performance Single Pipe delivers increased horsepower and improved engine efficiency, but fully utilizing those gains requires clutch calibration specifically matched to the modified power curve. Through extensive mountain testing, Straightline Performance developed this complete clutch package to maximize power transfer, maintain ideal RPM, and deliver exceptional performance in deep snow conditions.\u003c\/p\u003e\n\u003cp\u003eAt the heart of the system is Straightline Performance’s proven fully adjustable weight kit. Designed to provide precise RPM control and maximum tuning flexibility, the adjustable weights allow riders to fine-tune clutch calibration for changing snow conditions, elevation variations, rider preferences, and machine setup. This flexibility helps maintain peak performance throughout the season.\u003c\/p\u003e\n\u003cp\u003eThe kit also includes a custom-designed mountain helix engineered specifically for Polaris 850 models equipped with the Straightline Performance Single Pipe. The helix profile improves clutch efficiency, enhances shift characteristics, and provides aggressive backshift response when riding technical terrain, steep climbs, and deep powder conditions.\u003c\/p\u003e\n\u003cp\u003eTwo custom-calibrated clutch springs complete the package. Carefully matched to the adjustable weights and helix, these springs help maintain consistent clutch engagement, improve belt efficiency, and keep the engine operating in its optimal power range.\u003c\/p\u003e\n\u003cp\u003eUnlike generic clutch calibrations, every component in this package has been developed specifically around the performance characteristics of the Straightline Single Pipe and the demands of high-elevation mountain riding. Riders will experience stronger acceleration, sharper throttle response, quicker backshift, and improved deep snow maneuverability.\u003c\/p\u003e\n\u003cp\u003eWhether you’re sidehilling steep alpine terrain, climbing technical chutes, navigating tree lines, or carving fresh powder, this clutch package delivers the performance and control needed to maximize your Polaris 850’s potential.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStraightline Performance Single Pipe exhaust system is not included and must be purchased separately.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eFEATURES \u0026amp; BENEFITS\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for Polaris RMK, SKS, and Assault 850 models\u003c\/li\u003e\n\u003cli\u003eSpecifically calibrated for Straightline Performance Single Pipe applications\u003c\/li\u003e\n\u003cli\u003eOptimized for elevations above 6,000 feet\u003c\/li\u003e\n\u003cli\u003ePurpose-built for mountain and deep snow riding\u003c\/li\u003e\n\u003cli\u003eIncludes Straightline Performance fully adjustable weight kit\u003c\/li\u003e\n\u003cli\u003eCustom-designed mountain performance helix\u003c\/li\u003e\n\u003cli\u003eIncludes two custom-calibrated clutch springs\u003c\/li\u003e\n\u003cli\u003eImproved throttle response and acceleration\u003c\/li\u003e\n\u003cli\u003eFaster and more responsive backshift\u003c\/li\u003e\n\u003cli\u003eBetter power transfer and clutch efficiency\u003c\/li\u003e\n\u003cli\u003eMaintains optimal RPM with increased horsepower applications\u003c\/li\u003e\n\u003cli\u003eEnhanced deep snow performance and maneuverability\u003c\/li\u003e\n\u003cli\u003eAdjustable weight system for changing conditions\u003c\/li\u003e\n\u003cli\u003eImproved belt performance and drivability\u003c\/li\u003e\n\u003cli\u003eExtensive mountain testing and development\u003c\/li\u003e\n\u003cli\u003eEngineered and tested by Straightline Performance\u003c\/li\u003e\n\u003cli\u003eStraightline Performance Single Pipe sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIMPORTANT FITMENT NOTE\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThis clutch kit is specifically designed for Polaris RMK, SKS, and Assault 850 models equipped with a Straightline Performance Single Pipe exhaust system.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Straightline Performance Single Pipe exhaust is NOT included with this clutch kit and must be purchased separately. This clutch calibration is designed around the performance characteristics of the Straightline Performance Single Pipe and is not intended for stock exhaust applications.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pi-instructions-section\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eFitment For:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e2019-2021 SNOW POLARIS\u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e850 RMK AXYS\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e2019-2021 SNOW\u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003ePOLARIS\u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e850 SWITCHBACK AXYS\u003c\/span\u003e\u003c\/p\u003e\n\u003cb id=\"docs-internal-guid-1faf618a-7fff-10b2-a9c3-d8809f9f7c76\"\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"woocommerce-tabs wc-tabs-wrapper\"\u003e\n\u003cdiv class=\"woocommerce-Tabs-panel woocommerce-Tabs-panel--description panel entry-content wc-tab\" id=\"tab-description\" role=\"tabpanel\"\u003e\n\u003ch2\u003eAdditional information\u003c\/h2\u003e\n\u003ctable class=\"woocommerce-product-attributes shop_attributes\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"woocommerce-product-attributes-item woocommerce-product-attributes-item--weight\"\u003e\n\u003cth class=\"woocommerce-product-attributes-item__label\" scope=\"row\"\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"woocommerce-product-attributes-item__value\"\u003e6 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"woocommerce-product-attributes-item woocommerce-product-attributes-item--dimensions\"\u003e\n\u003cth class=\"woocommerce-product-attributes-item__label\" scope=\"row\"\u003eDimensions\u003c\/th\u003e\n\u003ctd class=\"woocommerce-product-attributes-item__value\"\u003e11 × 9 × 6 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Straightline Performance","offers":[{"title":"Default Title","offer_id":59991972806942,"sku":"123-155","price":499.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0882\/8108\/8286\/files\/Polaris-P85-Clutch-Kit1_1.png?v=1789841904","url":"https:\/\/adventurepartsllc.com\/products\/straightline-performance-single-pipe-mountain-clutch-kit-6-000-ft-polaris-rmk-sks-assault-850-2019-2021","provider":"Adventure Parts","version":"1.0","type":"link"}