{"product_id":"excess-xls-carbon-rim-451x21mm-36h-with-brake-surface","title":"Excess XLS Carbon Rim 451x21mm 36h With Brake Surface","description":"\u003ch1\u003eExcess XLS Carbon Rim 451x21mm 36H With Brake Surface\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e The Excess XLS Carbon is a 36-hole 20\" BMX rim engineered from 3K carbon weave for maximum strength-to-weight efficiency. The machined brake track delivers consistent stopping power for V-brake setups equipped with carbon-specific brake pads. At 289g, it offers significant weight savings over alloy alternatives while maintaining the stiffness and durability demanded by competitive BMX racers. Tubeless-ready construction enables modern lightweight tire setups.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3K Carbon Weave Construction\u003c\/strong\u003e – Three-directional carbon fiber weave provides superior strength and stiffness-to-weight ratio compared to single-directional or alloy construction; reduces rotational mass for acceleration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Carbon Geometry\u003c\/strong\u003e – Strategic carbon placement in high-load areas maximizes strength while minimizing weight; undercoat finish protects carbon and provides clean aesthetic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachined Brake Track\u003c\/strong\u003e – Precision-finished braking surface on rear profile ensures consistent pad contact; requires carbon-specific brake pads to prevent rim damage and maintain stopping power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Design\u003c\/strong\u003e – Minimized rim height reduces drag and rotational mass; beneficial for acceleration and sprint performance in racing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Gloss Finish\u003c\/strong\u003e – Premium aesthetic with protective coating; resists UV degradation and maintains appearance through extended use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAngled Nipple Holes\u003c\/strong\u003e – Spoke openings optimized for direct spoke-to-nipple angle, improving load distribution and wheel rigidity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTubeless Ready System\u003c\/strong\u003e – Bead lock system enables tubeless tire setups; reduces rotational weight and allows sealant-based puncture repair with tubeless-specific tires and additional components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eV-Brake Compatible\u003c\/strong\u003e – Designed for V-brake rear wheel setups with mandatory carbon-specific brake pad requirement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Size:\u003c\/strong\u003e 20\" (451mm ETRTO)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 22mm external \/ 16mm internal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 23.3mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpoke Holes:\u003c\/strong\u003e 36 (drilled)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 3K carbon weave\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRim Profile:\u003c\/strong\u003e Carbon brake-track design (rear)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eERD (Effective Rim Diameter):\u003c\/strong\u003e 423.4mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve:\u003c\/strong\u003e Presta F\/V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e High-gloss with undercoat protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 289g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Spoke Tension:\u003c\/strong\u003e ≤115 KGF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Tire Pressure:\u003c\/strong\u003e 110 PSI (7.58 bar)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTubeless Ready:\u003c\/strong\u003e Yes (requires additional tubeless conversion components: special valve, sealant, rim tape, liquid sealer)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrake Surface:\u003c\/strong\u003e Machined for V-brake compatibility (carbon-specific pads required)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility and Ideal Use Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e 20\" BMX bikes with 36-hole hubs; rear wheel position with V-brake systems only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrake Pad Requirement:\u003c\/strong\u003e Carbon-specific brake pads mandatory—standard aluminum brake pads will damage rim and void warranty; incompatible pads reduce stopping power and compromise safety\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTire Compatibility:\u003c\/strong\u003e 20\"x1-1\/8\" or 20\"x1-3\/8\" BMX tires; tubeless-specific tires with proper rim tape and sealant for tubeless setup; maximum inflation 110 PSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Advanced BMX racers prioritizing ultra-lightweight performance; competitive riders on hard-pack tracks seeking weight advantage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal Riders:\u003c\/strong\u003e Expert-level 20\" racers; riders valuing weight savings and stiffness; those with carbon-brake-pad availability and proper maintenance discipline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Building:\u003c\/strong\u003e Requires 36-hole rear hub, spokes, and nipples to complete rear wheel assembly; professional wheel building recommended due to carbon's brittleness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Recommended For:\u003c\/strong\u003e Riders without access to carbon-specific brake pads; front wheel use; riders exceeding 110 PSI tire pressure; rough or loose track surfaces; beginners unfamiliar with carbon care\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBrake Pad Critical Requirement\u003c\/strong\u003e This rim requires carbon-specific brake pads. Standard aluminum brake pads create excessive friction and heat, causing rim damage, loss of braking power, and potential rim failure. Verify carbon pad availability before purchase and replacement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTubeless Conversion\u003c\/strong\u003e Rim is tubeless-ready but requires additional components for full tubeless setup: tubeless-specific valve, sealant rim tape, liquid sealer, and tubeless-compatible tires. Traditional tube setup works without modifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaintenance and Care Notes\u003c\/strong\u003e Carbon rims require careful handling to prevent impact cracks. Spoke tension should be maintained at or below 115 KGF to prevent rim stress. Check wheel trueness before each race. Do not exceed 110 PSI tire pressure. Store and transport rim carefully to avoid impact damage. Carbon is susceptible to cracking from direct impacts; inspect regularly for damage.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-xs-12 col-sm-4\"\u003e\u003ccenter\u003e\u003cimg alt=\"\" height=\"292\" src=\"https:\/\/www.brgstore.com\/img\/cms\/XLCRIMS\/carbon451rear.jpg\" width=\"202\"\u003e\u003c\/center\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-sm-8\"\u003e\n\u003cp\u003e\u003cstrong\u003eEXCESS XLS 451x21MM RIM SPECIFICATIONS\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eERD: 20\": \u003c\/span\u003e\u003cspan lang=\"en-us\"\u003e423.4mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHeight: 23.3mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eInternal Rim Width: 16mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eExternal Rim Width: 22mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSpoke tension recommended \u0026lt;115KGF\u003c\/span\u003e\u003cbr\u003e\u003c!--115kgf--\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"margin-bottom: 10px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-sm-1\"\u003e\u003ccenter\u003e\u003cimg src=\"https:\/\/www.brgstore.com\/img\/cms\/ICONES%20JANTES\/tubelessready.jpg\" alt=\"\" width=\"50\" height=\"50\"\u003e\u003c\/center\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-sm-11\"\u003e\n\u003cp\u003e\u003cstrong\u003eTubeless Ready System\u003c\/strong\u003e - Our rims feature a Bead Lock System, needed for the rim to be Tubeless Ready. With the installation of additional items needed you can get the rim ready for tubeless set up, along with the usage of a tubeless specific tire. With a tubeless set up, you can lighten up your wheels, saveing rotational weight, as well as have a sealant inside your tubeless ready tire to help automatically repair small punctures.\u003cbr\u003eAdditional items needed to convert to a Tubeless system include Special Valve, Sealant Rim Tape, and Liquid sealer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"margin-bottom: 10px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-sm-1\"\u003e\u003ccenter\u003e\u003cimg src=\"https:\/\/www.brgstore.com\/img\/cms\/ICONES%20JANTES\/vbrakecompatible.jpg\" alt=\"\" width=\"50\" height=\"50\"\u003e\u003c\/center\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-sm-11\"\u003e\n\u003cp\u003e\u003cstrong\u003eV-Braking Compatible\u003c\/strong\u003e - Designed to be used as a rear rim when using a V-brake.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ci\u003e\u003cu\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003ci style=\"font-size: 0.875rem;\"\u003e\u003cu\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/i\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003ci style=\"font-size: 0.875rem;\"\u003e\u003cu\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003e**Due to unique nature of this item, ALL sales of this product are FINAL. No Refunds or Returns**\u003c\/b\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/i\u003e\u003c\/div\u003e","brand":"EXCESS","offers":[{"title":"Black \/ Red \/ 20\"x1-1\/8\"-1-3\/8\" (451MM)","offer_id":45317401411763,"sku":"EXRIME036CWBBKRD","price":299.99,"currency_code":"USD","in_stock":false},{"title":"Black \/ Blue \/ 20\"x1-1\/8\"-1-3\/8\" (451MM)","offer_id":45273489506483,"sku":"EXRIME036CWBBKBL","price":299.99,"currency_code":"USD","in_stock":false},{"title":"Black \/ Grey \/ 20\"x1-1\/8\"-1-3\/8\" (451MM)","offer_id":45264328261811,"sku":"EXRIME036CWBBKGY","price":299.99,"currency_code":"USD","in_stock":false},{"title":"Black \/ White \/ 20\"x1-1\/8\"-1-3\/8\" (451MM)","offer_id":45037967147187,"sku":"EXRIME036CWBBKWH","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8737\/2979\/files\/excess-xls-carbon-rim-451x21mm-36h-with-brake-surface.jpg?v=1783447814","url":"https:\/\/time2shinebmx.com\/products\/excess-xls-carbon-rim-451x21mm-36h-with-brake-surface","provider":"Time 2 Shine ","version":"1.0","type":"link"}