{"product_id":"crupi-os20-2-0-pro-xl-race-frame","title":"Crupi OS20 2.0 Pro XL Race Frame","description":"\u003ch1\u003eCrupi OS20 2.0 Pro XL Race Frame\u003c\/h1\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003e\n  The Crupi OS20 2.0 Pro XL Race Frame is a fully redesigned, all-American hand-built BMX race frame engineered for serious competitors who demand stability and speed. Built around the oversized 451mm (OS20) wheel standard, this frame delivers the extra rolling diameter and planted feel that aggressive racers rely on to gain an edge on the track. With a 21.5\" top tube, it is sized for riders 5'4\" and taller, providing the reach and control needed for powerful sprints and confident handling.\n\u003c\/p\u003e\n\u003cp\u003e\n  This latest 2.0 version brings key upgrades including wrap-around seat stays, a shorter seat tube profile, and a fully integrated built-in Disc Adapter - eliminating the need for bulky axle-mounted adapters. Constructed from seamless drawn 6061 T6 butted aluminum with race-proven geometry, the OS20 2.0 Pro XL is a frame built to win, made right here in the USA.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOS20 Oversized Wheel Compatibility:\u003c\/strong\u003e Designed for 451mm rim\/tire size, offering greater stability and a larger rolling diameter compared to standard 406mm BMX wheels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e21.5\" Top Tube:\u003c\/strong\u003e XL sizing designed for riders 5'4\" and taller for optimal reach and race geometry.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e6061 T6 Butted Aluminum Tubing:\u003c\/strong\u003e Seamless drawn construction with squared-off tube ends for maximum welding surface and frame integrity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWrap-Around Seat Stays:\u003c\/strong\u003e Updated 2.0 design for a stiffer, more responsive rear end feel on the track.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-In Disc Adapter:\u003c\/strong\u003e Integrated into the frame - no axle-mounted adapters required. Compatible with Tektro, TRP Evo, TRP Slate, and all Shimano hydraulic disc brake kits (120mm rotor required; Hope, Avid, and mechanical kits do not fit).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTeardrop Chain Stay Tubes:\u003c\/strong\u003e Shaped for a stiff and strong rear end, improving power transfer and overall rigidity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Down Tubes:\u003c\/strong\u003e Larger diameter square-shaped down tubes add stiffness and strength throughout the front triangle.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallel 3\/8\" (10mm) Axle Slots:\u003c\/strong\u003e Ground-parallel dropouts ensure frame geometry remains consistent regardless of rear wheel position.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThicker 3D Dropouts:\u003c\/strong\u003e Extra stiffness for disc brake use while still accommodating standard chain tensioners for easy wheel installation and adjustment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePro Taper Head Tube \u0026amp; EB24 Euro BB:\u003c\/strong\u003e Level 2.0 spec includes a Pro Taper head tube and traditional EB24 Euro bottom bracket standard. Compatible with most standard Pro 20\" forks - no OS20-specific fork required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eV-Brake Posts Included:\u003c\/strong\u003e Brake posts are retained on the frame for riders who prefer V-brake setups.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHand Built in the USA:\u003c\/strong\u003e Every Crupi frame is individually hand built in the United States.\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 OS20 2.0 Pro XL Race Frame\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 2.0 Pro XL represents the brand at its very best - refined, race-tested, and proudly made in the USA. The integrated disc adapter and updated seat stay design show that Crupi is constantly evolving to meet the demands of modern BMX racing without compromising the proven geometry that has taken riders to the podium. For taller riders who want the stability and performance benefits of the OS20 wheel format, this frame is one of the few purpose-built options on the market. The premium 6061 T6 butted construction means you're getting a lightweight yet durable platform that can handle the punishment of gate starts, rhythm sections, and jump sequences lap after lap. Whether you're racing at the local track or competing at a national event, this frame delivers the confidence and consistency you need to perform at your peak.\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\u003eTop Tube Length\u003c\/th\u003e\n\u003ctd\u003e21.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eWheel Size\u003c\/th\u003e\n\u003ctd\u003e451mm (OS20 Oversized 20\")\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eFrame Material\u003c\/th\u003e\n\u003ctd\u003eSeamless Drawn 6061 T6 Butted Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eBottom Bracket Standard\u003c\/th\u003e\n\u003ctd\u003eEB24 Euro BB\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eHead Tube\u003c\/th\u003e\n\u003ctd\u003ePro Taper\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eAxle Slot Size\u003c\/th\u003e\n\u003ctd\u003e3\/8\" (10mm), parallel to ground\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eDisc Brake Compatibility\u003c\/th\u003e\n\u003ctd\u003eTektro, TRP Evo, TRP Slate, all Shimano hydraulic kits (120mm rotor required)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eDisc Adapter\u003c\/th\u003e\n\u003ctd\u003eBuilt-in (Crupi Disc Adapter Kit required, sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eRotor Size\u003c\/th\u003e\n\u003ctd\u003e120mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eRider Height Recommendation\u003c\/th\u003e\n\u003ctd\u003e5'4\" and taller\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eHand built in the USA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eFrame Only (no fork included)\u003c\/th\u003e\n\u003ctd\u003eYes\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\u003eWhat does \"OS20\" mean and why would I choose it over a standard 20\" BMX frame?\u003c\/summary\u003e\n    \u003cp class=\"faq-content\"\u003eOS20 stands for \"Over-Sized\" 20\" and refers to the 451mm rim\/tire diameter - slightly larger than the standard 406mm BMX wheel. The bigger wheel offers more stability, a larger contact patch, and increased rolling diameter, which can translate to a speed advantage down long straightaways and smoother rolling through rough sections of track. Racers who prefer a more planted, stable feel over the nimbleness of the smaller standard wheel often gravitate toward OS20 setups.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need a special OS20 fork to run this frame?\u003c\/summary\u003e\n    \u003cp class=\"faq-content\"\u003eNo - while the frame geometry was based around the Answer Dagger OS20 fork, most standard Pro 20\" forks are compatible with the OS20 wheel. You do not need to source a hard-to-find OS20-specific fork to build this frame up.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhich disc brake kits are compatible with the built-in Disc Adapter?\u003c\/summary\u003e\n    \u003cp class=\"faq-content\"\u003eThe built-in disc adapter is compatible with Tektro, TRP Evo, TRP Slate, and all Shimano hydraulic disc brake kits when used with Crupi's Disc Adapter Kit and a 120mm rotor. Note that Hope, Avid, and all mechanical disc brake kits are NOT compatible with this system.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs the Crupi Disc Adapter Kit included with the frame?\u003c\/summary\u003e\n    \u003cp class=\"faq-content\"\u003eNo - the Crupi Disc Adapter Kit is sold separately. You will need to purchase it in addition to this frame to use hydraulic disc brakes. A 120mm rotor is also required for proper fit.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I still run V-brakes on this frame?\u003c\/summary\u003e\n    \u003cp class=\"faq-content\"\u003eYes - all Crupi frames retain brake posts, so the OS20 2.0 Pro XL is fully compatible with standard V-brake setups if you prefer that over disc brakes.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat if the color or size I want is out of stock?\u003c\/summary\u003e\n    \u003cp class=\"faq-content\"\u003eCrupi frames are hand built in the USA in limited quantities and do sell out regularly. If your preferred color or configuration is not currently available, contact Crupi directly to be placed on their priority list - when that frame becomes available, priority list customers get first access.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"Crupi BMX","offers":[{"title":"Black \/ with BlackWht Fade decals","offer_id":57270034759985,"sku":"70821","price":779.99,"currency_code":"USD","in_stock":false},{"title":"Black \/ with RedBlack Fade decals","offer_id":57270034792753,"sku":"sku-42260234502233","price":779.99,"currency_code":"USD","in_stock":false},{"title":"Black \/ with BlueBlack Fade decals","offer_id":57270034825521,"sku":"sku-42260234535001","price":779.99,"currency_code":"USD","in_stock":false},{"title":"White \/ with BlackWht Fade decals","offer_id":57270034858289,"sku":"70825","price":779.99,"currency_code":"USD","in_stock":true},{"title":"White \/ with RedBlack Fade decals","offer_id":57270034891057,"sku":"sku-42260234698841","price":779.99,"currency_code":"USD","in_stock":true},{"title":"White \/ with BlueBlack Fade decals","offer_id":57270034923825,"sku":"sku-42260234731609","price":779.99,"currency_code":"USD","in_stock":true},{"title":"Charcoal \/ with BlackWht Fade decals","offer_id":57270034956593,"sku":"70826","price":779.99,"currency_code":"USD","in_stock":true},{"title":"Charcoal \/ with RedBlack Fade decals","offer_id":57270034989361,"sku":"sku-42260234895449","price":779.99,"currency_code":"USD","in_stock":true},{"title":"Charcoal \/ with BlueBlack Fade decals","offer_id":57270035022129,"sku":"sku-42260234928217","price":779.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1724\/7681\/files\/2026_Pro_2X_Charcoal_wRedBlk_Fade.png?v=1793648369","url":"https:\/\/omahasportsandgames.com\/products\/crupi-os20-2-0-pro-xl-race-frame","provider":"Omaha Sports \u0026 Games","version":"1.0","type":"link"}