{"product_id":"crupi-os20-2-0-pro-2x-race-frame","title":"Crupi OS20 2.0 Pro 2X Race Bike Frame","description":"\u003ch1\u003eCrupi OS20 2.0 Pro 2X Race Bike 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 2X Race Frame is a completely redesigned BMX race frame built for serious competitors who want the edge that a 451mm over-sized wheel setup provides. Handcrafted in the USA from seamless drawn 6061 T6 butted aluminum, this frame delivers a race-winning geometry refined through years of competitive development. The updated 2.0 design introduces wrap-around seat stays, a slightly shorter seat tube, and a built-in Disc Adapter - eliminating the need for axle-mounted adapters entirely.\n\u003c\/p\u003e\n\u003cp\u003e\n  With a 22\" top tube, this frame is sized for riders 5'6\" and taller, making it an ideal choice for elite-level BMX racers looking for stability and speed. The OS20 platform pairs the extra rolling diameter of the 451mm wheel with proven Pro 2X geometry, offering a confident, planted feel through every berm and straight. Level 2.0 Race Frames feature Pro Taper head tubes and use a traditional EB24 Euro BB, keeping compatibility broad and component selection familiar.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAll-American Handbuilt Construction:\u003c\/strong\u003e Hand built in the USA from seamless drawn 6061 T6 butted aluminum tubing for race-grade strength and consistency.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOS20 \/ 451mm Wheel Compatibility:\u003c\/strong\u003e Designed around the over-sized 20\" (451mm) wheel format, delivering greater stability and extra rolling diameter on the track.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e22\" Top Tube:\u003c\/strong\u003e Sized for riders 5'6\" and taller, optimized for a powerful, extended race position.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-in Disc Adapter:\u003c\/strong\u003e New integrated Disc Adapter eliminates axle-mounted adapters - compatible with Tektro, TRP Evo, TRP Slate, and all Shimano hydraulic disc brake kits (Note: Hope, Avid, and mechanical kits do not fit; requires Crupi Disc Adapter kit and 120mm rotor).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWrap-Around Seat Stays:\u003c\/strong\u003e Updated 2.0 design features wrap-around seat stays and a slightly shorter seat tube for improved rear-end stiffness and ride quality.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquared Tubing Ends:\u003c\/strong\u003e Tubing is squared off at the ends to increase welding surface area, resulting in stronger, more reliable joints throughout the frame.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare-Shaped Down Tube:\u003c\/strong\u003e Larger diameter, square-profile down tube significantly stiffens and strengthens the front triangle for precise power transfer.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTeardrop Chain Stays:\u003c\/strong\u003e Tear drop shaped chain stay tubes create an exceptionally strong and stiff rear end, reducing flex under hard pedaling efforts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallel 3\/8\" (10mm) Axle Slots:\u003c\/strong\u003e Axle slots run parallel to the ground so frame geometry remains consistent regardless of rear wheel position.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThicker 3D Drop-Outs:\u003c\/strong\u003e Extra-thick 3D drop-outs provide added stiffness for disc brake use while remaining compatible with standard chain tensioners for easy rear wheel installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eV-Brake Compatible:\u003c\/strong\u003e Brake posts are included on all Crupi frames for use with V-Brakes, keeping your brake options open.\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 standard EB24 Euro BB shell for broad component compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eOptions \u0026amp; Which to Choose\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlack Frame:\u003c\/strong\u003e A clean, stealthy look available with Black\/White Fade, Red\/Black Fade, or Blue\/Black Fade decals. A versatile choice that pairs well with virtually any component color scheme - great for riders who want a bold, aggressive aesthetic.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWhite Frame:\u003c\/strong\u003e A bright, high-visibility option also available with Black\/White Fade, Red\/Black Fade, or Blue\/Black Fade decals. Ideal for riders who want to stand out on the track and prefer a classic BMX race look.\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 2X 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 competitive BMX for decades, and the OS20 2.0 Pro 2X Race Frame is a direct reflection of that commitment to performance and American craftsmanship. Every frame is hand built in the USA, meaning you're getting a level of quality control and attention to detail that mass-produced alternatives simply can't match. The OS20 platform is a proven race setup favored by riders who want every advantage the larger 451mm wheel can offer - more stability, more roll, and more confidence through technical sections. With the new built-in Disc Adapter, updated seat stays, and refined geometry, this 2.0 version is the most track-ready version of the OS20 frame yet. Whether you're racing UCI-sanctioned events or pushing hard at your local track, this frame is engineered to keep up with your ambitions. If your size or color is currently out of stock, Crupi takes priority list requests - so you're never left behind.\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\u003e22\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eWheel Size\u003c\/th\u003e\n\u003ctd\u003eOS20 \/ 451mm (over-sized 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\u003eHead Tube Type\u003c\/th\u003e\n\u003ctd\u003ePro Taper\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eBottom Bracket\u003c\/th\u003e\n\u003ctd\u003eEB24 Euro BB\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 (requires Crupi Disc Adapter kit + 120mm rotor)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eBrake Post Compatibility\u003c\/th\u003e\n\u003ctd\u003eV-Brake compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eRecommended Rider Height\u003c\/th\u003e\n\u003ctd\u003e5'6\" and taller\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eHandbuilt in the USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\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 want it?\u003c\/summary\u003e\n    \u003cp class=\"faq-content\"\u003eOS20 stands for \"Over-Sized 20 inch\" - referring to the 451mm rim\/tire format, which is slightly larger than a standard 406mm BMX wheel. The bigger wheel offers a greater rolling diameter and increased stability, which many racers find beneficial on longer, faster tracks. If you value a smoother ride and a more planted feel, the OS20 setup is worth considering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need a special fork for the OS20 wheel?\u003c\/summary\u003e\n    \u003cp class=\"faq-content\"\u003eNot necessarily. While the frame geometry was based on the Answer Dagger OS20 fork, most standard Pro 20\" forks will work with the OS20 wheel. You are not required to purchase an OS20-specific fork, which makes component selection more flexible and cost-effective.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhich disc brake kits are compatible with this frame?\u003c\/summary\u003e\n    \u003cp class=\"faq-content\"\u003eThis frame 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. Hope, Avid, and all mechanical disc brake kits are not compatible. V-Brakes are also supported via standard brake posts on the frame.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs assembly required, and how does this frame ship?\u003c\/summary\u003e\n    \u003cp class=\"faq-content\"\u003eThe frame ships as a bare frame only - you will need to source and install a fork, headset, bottom bracket, cranks, wheels, brakes, and other components separately. As a frame only, it ships as a standard parcel (not on a freight pallet). Crupi also offers local pickup at their Gardnerville, NV location, typically ready within 24 hours.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat if the frame is out of stock in my size or color?\u003c\/summary\u003e\n    \u003cp class=\"faq-content\"\u003eCrupi frames are hand built in the USA and can sell out quickly. If your preferred size or color is not currently available, you can contact Crupi directly to be placed on their priority list. When that frame becomes available, you'll have the first opportunity to purchase it.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat bottom bracket does this frame use?\u003c\/summary\u003e\n    \u003cp class=\"faq-content\"\u003eThe Crupi OS20 2.0 Pro 2X Race Frame uses a traditional EB24 Euro BB (European Bottom Bracket) shell. This is a widely available standard, making it easy to find compatible crankset and bottom bracket options from most BMX component brands.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"Crupi BMX","offers":[{"title":"Black \/ with BlackWht Fade decals","offer_id":57270035939633,"sku":"70821","price":779.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ with RedBlack Fade decals","offer_id":57270035972401,"sku":"sku-42260237287513","price":779.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ with BlueBlack Fade decals","offer_id":57270036005169,"sku":"sku-42260237320281","price":779.99,"currency_code":"USD","in_stock":true},{"title":"White \/ with BlackWht Fade decals","offer_id":57270036037937,"sku":"70825","price":779.99,"currency_code":"USD","in_stock":true},{"title":"White \/ with RedBlack Fade decals","offer_id":57270036070705,"sku":"sku-42260237418585","price":779.99,"currency_code":"USD","in_stock":true},{"title":"White \/ with BlueBlack Fade decals","offer_id":57270036103473,"sku":"sku-42260237451353","price":779.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1724\/7681\/files\/2026_Pro_2X_White_wBlueBlk_Fade_3742b10a-88f6-46a4-9a5c-358bb05327d1.jpg?v=1793648368","url":"https:\/\/omahasportsandgames.com\/products\/crupi-os20-2-0-pro-2x-race-frame","provider":"Omaha Sports \u0026 Games","version":"1.0","type":"link"}