{"product_id":"sirris-r46-2sc-shock-for-surron-ultra-bee-mx-tune-v1-2","title":"Sirris R46 2SC Shock for Surron Ultra Bee - MX Tune (V1.2)","description":"\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eThe Sirris R46 2SC MX Tune shock brings more adjustability and control to the Surron Ultra Bee. Updated with Two Stage Compression (2SC), revised rebound tuning and clicker settings, a revised bottom-out bumper, and new graphics, it delivers a race-focused feel for aggressive motocross riding.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe MX tune is built for riders who spend their time on the track and need more support and bottoming resistance for big jumps, whoops, and fast corners.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMX Tune is purpose-built for motocross performance. Its race-focused setup delivers the balance, control, and bottoming resistance needed to charge through big jumps, hammer whoops, and attack fast corners at race pace. High-flow internals and fully tunable compression and rebound circuits help maintain consistent damping through repeated hits, while independent high-speed and low-speed compression adjustments let you dial in support and impact absorption separately.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned specifically for the Ultra Bee and developed to pair with the \u003ca href=\"https:\/\/parts.electriccyclerider.com\/products\/sirris-f43-fork-for-surron-ultra-bee-mx-tune-v1-2\"\u003eSirris F43 fork\u003c\/a\u003e, the R46 installs as a direct replacement for the stock shock.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eNote: \u003c\/strong\u003eThis listing is for the Motocross (MX) Tune. If you are a Trail Rider, please see the \u003ca href=\"https:\/\/parts.electriccyclerider.com\/products\/sirris-r46-2sc-shock-for-surron-ultra-bee-trail-tune\"\u003eSirris R46 Trail Tune Shock\u003c\/a\u003e here.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWant to see all of the Sirris Fork \u0026amp; Shock Options? Click \u003c\/span\u003e\u003ca href=\"https:\/\/parts.electriccyclerider.com\/collections\/sirris-suspension\"\u003e\u003cspan\u003ehere\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e every \u003c\/span\u003e\u003ca href=\"https:\/\/parts.electriccyclerider.com\/collections\/sirris-suspension\"\u003e\u003cspan\u003eSirris Suspension\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e tune we sell.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndependent compression adjustment: The 2SC system provides separate high-speed and low-speed compression adjustments for greater control over suspension feel.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUpdated MX Tune: Race-focused damping designed for motocross, with the support and bottoming resistance needed for big jumps, whoops, and fast corners.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-flow damping: A high-flow base valve cavity and 46 mm main piston provide a broad tuning range, responsive damping, and consistent performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRider-matched spring options: Five spring rates let you select the setup for your weight.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDurable construction: A Type 3 hard anodized aluminum body and 16 mm induction-hardened, chrome-plated hollow steel shaft are built for demanding riding.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLarge floating piston reservoir: Designed to manage the oil displacement of the 16 mm shaft and maintain consistent damping through repeated hard hits and high heat loads.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFully serviceable: Rebuildable construction with compression and rebound valving that can be custom tuned.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDirect fit: Stock replacement dimensions of 320 mm length and 85 mm stroke, with no additional parts or modifications required.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRider Weight and Spring Selection\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSelect your spring based on rider weight without riding gear. Sirris already accounts for 15 lbs of riding gear in the ranges below.\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eRider Weight Without Gear\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eSpring Option\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eSpring Rate\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eUnder 160 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e85 N\/mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e160–200 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMedium\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e95 N\/mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e200–240 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHeavy\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e105 N\/mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e240–280 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eX Heavy\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e115 N\/mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOver 280 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eXX Heavy\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e125 N\/mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eExternal Adjustments\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLow-speed compression: 18 clicks\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-speed compression: 24 clicks, adjusted with a 20 mm hex\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRebound: 24 clicks\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSpring preload: Manually adjustable threaded retainer with locking feature\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eSpecs\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eR46 2SC MX Tune Specifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFitment\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSurron Ultra Bee\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTune\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMX Tune\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eArchitecture\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePiggyback shock with steel coil spring\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eLength\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e320 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eStroke\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e85 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight Without Spring\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.9 lbs \/ 1.76 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCompression Adjustment\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2SC with independent high-speed and low-speed adjustment\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDamping\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-flow internals with fully tunable compression and rebound circuits\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMain Piston\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-flow 46 mm CNC-machined 6061 billet aluminum, Type 3 hard anodized\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePiston Band\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHard band\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShaft\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16 mm OD induction-hardened, chrome-plated hollow steel; 5.5 mm ID\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShock Body\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSeamless 6061 aluminum, Type 3 hard anodized, ACME thread\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSpring Retainer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSeamless 6061 aluminum, Type 3 hard anodized, ACME thread, manually adjustable with locking feature\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eReservoir\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePressurized internal floating piston system\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBottom-Out Bumper\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUpdated MCU bumper\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTop-Out Bumper\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRubber bumper\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSeals\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNBR\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePair It with the Sirris F43 Fork\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eComplete your Ultra Bee suspension setup with the \u003c\/span\u003e\u003ca href=\"https:\/\/parts.electriccyclerider.com\/products\/sirris-fork-for-surron-ultra-bee\"\u003e\u003cspan\u003eSirris F43 fork\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e. With 260 mm of travel and purpose-tuned damping, the F43 is designed to work alongside the R46 for balanced handling, traction, and control.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFitment\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSurron Ultra Bee\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e(Direct replacement for the stock shock with no modifications or additional parts required.)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sirris Suspension","offers":[{"title":"Light ( \u003c 160 lb) \/ MX \/ 2SC","offer_id":67896931647769,"sku":"246-99-041-LIGHT-R46-320X85-SURRON-ULTRABEE1.2-MX","price":999.0,"currency_code":"USD","in_stock":true},{"title":"Medium (160-200 lb) \/ MX \/ 2SC","offer_id":67896931680537,"sku":"246-99-041-MED-R46-320X85-SURRON-ULTRABEE1.2-MX","price":999.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (200-240 lb) \/ MX \/ 2SC","offer_id":67896931713305,"sku":"246-99-041-HEAVY-R46-320X85-SURRON-ULTRABEE1.2-MX","price":999.0,"currency_code":"USD","in_stock":true},{"title":"X Heavy (240-280 lb) \/ MX \/ 2SC","offer_id":67896931746073,"sku":"246-99-041-XHEAVY-R46-320X85-SURRON-ULTRABEE1.2-MX","price":999.0,"currency_code":"USD","in_stock":true},{"title":"XX Heavy ( \u003e 280 lb) \/ MX \/ 2SC","offer_id":67896931778841,"sku":"246-99-041-2XHEAVY-R46-320X85-SURRON-ULTRABEE1.2-MX","price":999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/9441\/0265\/files\/sirris-R46-2SC-ultrabee-shock-front-mxtune.jpg?v=1792704854","url":"https:\/\/parts.electriccyclerider.com\/products\/sirris-r46-2sc-shock-for-surron-ultra-bee-mx-tune-v1-2","provider":"ECR Parts","version":"1.0","type":"link"}