{"product_id":"crupi-os20-36h-centerlock-wheelset","title":"Crupi OS20 36H CenterLock Wheelset","description":"\u003ch1\u003eCrupi OS20 36H CenterLock Wheelset\u003c\/h1\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003e\n  The Crupi OS20 36H CenterLock Wheelset is an all-new 2026 build engineered specifically for OS20 BMX frames, delivering race-ready performance from the ground up. At its core is Crupi's Quad CenterLock hubset, featuring 150 ratchet teeth that engage every 2.4 degrees - making it one of the fastest Spring and Pawl engagement systems in BMX racing today. The 451mm Rhythm Section rims are race tested and laced with 14G spokes and alloy nipples for a build that's both stiff and durable under competition demands.\n\u003c\/p\u003e\n\u003cp\u003e\n  What sets this wheelset apart is its versatility: the front hub accepts either a standard 3\/8\" or 20mm axle, and the CenterLock hub system is disc brake-compatible with the addition of an adapter kit. Whether you're building up an OS20 race machine or upgrading an existing setup, this wheelset is the definitive performance choice for serious OS20 BMX riders.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuad CenterLock Hub - 150 Ratchet Teeth:\u003c\/strong\u003e Engages every 2.4 degrees for near-instant power transfer - one of the fastest Spring and Pawl systems in BMX.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e451mm Rhythm Section Rims:\u003c\/strong\u003e Race-tested 36H OS20 rims laced with 14G spokes and alloy nipples for maximum rigidity and reliability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterchangeable Front Axle:\u003c\/strong\u003e Front hub converts between standard 3\/8\" (10mm) and 20mm thru-axle - choose your axle size at time of order to match your fork.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisc Brake Compatible:\u003c\/strong\u003e CenterLock hub system supports disc brake conversion; also compatible with V-Brakes. CenterLock ISO Converter and Disc Brake Adapter Kit sold separately.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4 Cog Spacers Included:\u003c\/strong\u003e Fine-tune cog positioning for the best possible chain alignment with your specific drivetrain setup.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChromoly 16T Cog Included:\u003c\/strong\u003e Ships with a 16T chromoly steel cog; additional cog sizes (13T-18T) available at a small upcharge.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight - 3 lbs 14 oz:\u003c\/strong\u003e No rider weight limit, built to handle the rigors of BMX racing at any level.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOS20 Frame Compatibility:\u003c\/strong\u003e Designed for OS20 frames; most standard Pro 20\" forks also fit, so an OS20-specific fork is not required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmerican Valve Compatible:\u003c\/strong\u003e Wheels require American valve (Schrader) tubes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor Options:\u003c\/strong\u003e Black rims with Red or Blue hub\/nipple accent options available alongside full Black build.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eAxle Options \u0026amp; Which to Choose\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOS20 36H with 3\/8\" Front:\u003c\/strong\u003e Uses a standard 3\/8\" (10mm) front axle - the most universal option, compatible with the vast majority of BMX forks including most standard Pro 20\" forks. Best for riders building on a traditional fork setup.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOS20 36H with 20mm Front:\u003c\/strong\u003e Features a 20mm thru-axle front hub for added stiffness and a more secure front-end feel. Best for riders running a 20mm-compatible fork who want maximum rigidity out front.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCrupi Quad CenterLock 36H Front Wheel\u003c\/li\u003e\n  \u003cli\u003eCrupi Quad CenterLock 36H Rear Wheel\u003c\/li\u003e\n  \u003cli\u003e451mm Rhythm Section OS20 36H Rims (laced with 14G spokes and alloy nipples)\u003c\/li\u003e\n  \u003cli\u003e16T Chromoly Cog\u003c\/li\u003e\n  \u003cli\u003e4 Cog Spacers\u003c\/li\u003e\n  \u003cli\u003eRim Tape\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy You'll Love It\u003c\/h2\u003e\n\u003cp\u003e\n  Crupi has been a trusted name in BMX racing for decades, and the OS20 36H CenterLock Wheelset represents their most advanced wheelset to date. The Quad CenterLock hub's 150-tooth engagement is so responsive that riders describe it as feeling essentially instant - giving you the confidence to lay down power the moment you need it. The race-proven Rhythm Section rims have been tested under real competition conditions, so you know they're built to last season after season. With a no rider weight limit rating and rugged chromoly hardware, this wheelset is as capable as the rider pushing it. For OS20 BMX racers who refuse to compromise, this is the wheelset that delivers from the gate drop to the finish line.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cdiv class=\"custom-product-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eView Product Specs\u003c\/strong\u003e\u003c\/summary\u003e\n\u003ctable border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eRim Size\u003c\/th\u003e\n\u003ctd\u003e451mm OS20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRim Model\u003c\/th\u003e\n\u003ctd\u003eRhythm Section 36H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHub\u003c\/th\u003e\n\u003ctd\u003eCrupi Quad CenterLock 36H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEngagement\u003c\/th\u003e\n\u003ctd\u003e150 ratchet teeth \/ 2.4 degrees per engagement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEngagement Type\u003c\/th\u003e\n\u003ctd\u003eSpring and Pawl\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpoke Gauge\u003c\/th\u003e\n\u003ctd\u003e14G\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNipples\u003c\/th\u003e\n\u003ctd\u003eAlloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFront Axle Options\u003c\/th\u003e\n\u003ctd\u003e3\/8\" (10mm) or 20mm thru-axle (interchangeable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrake Compatibility\u003c\/th\u003e\n\u003ctd\u003eDisc Brake (with adapter, sold separately) and V-Brake\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncluded Cog\u003c\/th\u003e\n\u003ctd\u003e16T Chromoly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Type\u003c\/th\u003e\n\u003ctd\u003eAmerican Valve (Schrader)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e3 lbs 14 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRider Weight Limit\u003c\/th\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrame Compatibility\u003c\/th\u003e\n\u003ctd\u003eOS20 frames only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003ctd\u003e2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cdiv class=\"custom-product-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these wheels compatible with a standard 20\" BMX frame?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eNo - the Crupi OS20 wheelset uses 451mm OS20 rims and is designed specifically for OS20 BMX frames. The OS20 wheel size is larger than a standard 20\" BMX wheel (406mm), so it will not fit standard 20\" BMX frames. Most standard Pro 20\" forks will, however, accept the OS20 wheel, so you don't necessarily need an OS20-specific fork - but an OS20 frame is required.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the 3\/8\" and 20mm front axle options?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eThe 3\/8\" (10mm) axle is the standard BMX front axle size and works with the vast majority of BMX forks. The 20mm thru-axle option provides a stiffer, more secure front-end connection and is used with forks that have 20mm dropouts. Make sure to check your fork's axle spec before ordering. If you're unsure, the 3\/8\" option is the most universally compatible choice.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this wheelset with disc brakes?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eYes - the Quad CenterLock hub is disc brake compatible. To use disc brakes, you'll need to add a Crupi Disc Brake Adapter Kit (sold separately). The wheelset is also compatible with V-Brakes right out of the box. The CenterLock ISO Converter is also sold separately if needed for your setup.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I change the cog size from the included 16T?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eYes - when placing your order you can select a different cog size ranging from 13T to 18T for a small upcharge. If you want to keep the included 16T chromoly cog, no additional cost applies. Additional Crupi cassette cogs are also available separately if you want to swap gearing down the road.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat tubes do these wheels require?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eThe Crupi OS20 wheelset requires American valve (Schrader) tubes - the same style used on car tires and common BMX tubes. Be sure to source 451mm OS20-compatible tubes, as standard 20\" BMX tubes will not fit correctly.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Crupi BMX","offers":[{"title":"OS20 36H with 3\/8\" Front \/ Black","offer_id":57270035546417,"sku":"38571","price":679.99,"currency_code":"USD","in_stock":true},{"title":"OS20 36H with 3\/8\" Front \/ Black\/Red","offer_id":57270035579185,"sku":"38572","price":679.99,"currency_code":"USD","in_stock":true},{"title":"OS20 36H with 3\/8\" Front \/ Black\/Blue","offer_id":57270035611953,"sku":"38574","price":679.99,"currency_code":"USD","in_stock":true},{"title":"OS20 36H with 20mm Front \/ Black","offer_id":57270035644721,"sku":"sku-42795954143321","price":679.99,"currency_code":"USD","in_stock":true},{"title":"OS20 36H with 20mm Front \/ Black\/Red","offer_id":57270035677489,"sku":"sku-42795954176089","price":679.99,"currency_code":"USD","in_stock":true},{"title":"OS20 36H with 20mm Front \/ Black\/Blue","offer_id":57270035710257,"sku":"sku-42795954208857","price":679.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1724\/7681\/files\/20x1.75BlackWheelset10mm-1.jpg?v=1793648368","url":"https:\/\/omahasportsandgames.com\/products\/crupi-os20-36h-centerlock-wheelset","provider":"Omaha Sports \u0026 Games","version":"1.0","type":"link"}