{"product_id":"huffy-primus-bmx-race-frame-pro-xl-21-25tt-red-black","title":"Huffy Primus BMX Race Frame - Pro XL - 21.25\"TT - Red\/Black","description":"\u003cp\u003eThe Huffy Primus BMX Race Frame delivers elite-level BMX racing performance with a lightweight 6061 T-6 aluminum frame, advanced dropout engineering, and a tool-free chain tensioner system for fast, simple adjustments. Featuring an innovative hidden brake cable cover for easier maintenance, the Primus is an affordable high-end BMX race frame trusted by champions.\u003c\/p\u003e\n\u003cp\u003eThe Primus was engineered with one goal in mind: to create a high-performance BMX race frame that delivers elite-level speed while making setup and maintenance easier for riders with podiums on their mind. Every detail was developed using feedback from top BMX racers and expert engineers to simplify the experience off the track without sacrificing stiffness, strength, or performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe patent-pending \u003c\/span\u003eC.A.G.E. (Concealed Appearance Guided External)\u003cspan\u003e feature delivers the same clean look as an internally routed brake line, while making full brake swaps possible with just a 3mm hex key. Its easy access lets riders keep backup systems ready for quick replacement between motos without cutting lines, bleeding hydraulics, or rerouting hoses.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe integrated dropout system was designed to simplify wheel and cog changes while maintaining precise brake caliper and wheel position. The dropout plates stay fixed in the frame during swaps, helping maintain wheel alignment and significantly reducing downtime between motos. The Primus chain tensioner system was built for fast, precise trackside adjustments without extra tools or loose hardware. Integrated thumb-wheel adjusters let riders quickly dial in chain tension using nothing more than their fingers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBuilt for stiffness, durability, and smooth power transfer, the Primus utilizes a T47 bottom bracket that delivers reliable performance under hard riding and repeated gate starts. The oversized threaded design supports larger bearings and spindle options while keeping the system easy to service.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003c\/b\u003e\u003cem\u003e*This is a frame only. Spec is posted below for compatibilty reference only.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003c\/em\u003e\u003cb\u003e\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003cb\u003eUse: \u003c\/b\u003eBMX Racing\u003cbr\u003e\u003cb\u003e\u003c\/b\u003e\u003cb\u003eFrame Material: \u003c\/b\u003e6061-T6 Aluminum\u003cbr\u003e\u003cb\u003e\u003c\/b\u003e\u003cb\u003eWheel Size: \u003c\/b\u003e20\"\u003cbr\u003e\u003cb\u003e\u003c\/b\u003e\u003cb\u003eBottom Bracket Type: \u003c\/b\u003eT47 External Bearing\u003cbr\u003e\u003cb\u003e\u003c\/b\u003e\u003cb\u003eBrake Type: \u003c\/b\u003eHydraulic Disc Brake\u003cbr\u003e\u003cb\u003e\u003c\/b\u003e\u003cb\u003eBrake Mounting: \u003c\/b\u003ePost Mount\u003cbr\u003e\u003cb\u003e\u003c\/b\u003e\u003cb\u003eHeadset Type: \u003c\/b\u003eIS42 \/ IS52\u003cbr\u003e\u003cb\u003e\u003c\/b\u003e\u003cb\u003eSeat Post\/Seat Clamp Diameter: \u003c\/b\u003e27.2 mm \/ 31.8 mm\u003cbr\u003e\u003cb style=\"font-size: 0.875rem;\"\u003eBrake Rotor Size: \u003c\/b\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e140 mm\u003cbr\u003e\u003c\/span\u003e\u003cb\u003eRear Axle Compatibility: \u003c\/b\u003e15 mm Plates Included (20 mm \u0026amp; 10 mm Available Aftermarket)\u003cbr\u003e\u003cb\u003eOutside-Outside Axle Length: \u003c\/b\u003e141 mm\u003cbr\u003e\u003cb\u003eMax Tire Width (ETRTO): \u003c\/b\u003e1.95\" (50-406)\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003eTop Tube: \u003c\/b\u003e21.25\"\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003eHead Tube Angle: \u003c\/b\u003e74°\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003eSeat Tube Angle: \u003c\/b\u003e72°\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003eChainstay Length (to center): \u003c\/b\u003e15\"\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003eBB Height: \u003c\/b\u003e284mm (11.2\")\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003eSeat Tube Length: \u003c\/b\u003e9.25\"\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003eHead Tube Length: \u003c\/b\u003e4.725\"\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003ePosted Weight: \u003c\/b\u003e4lb (1830g)\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: normal;\" class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: normal;\" class=\"MsoNormal\"\u003e\u003cstrong\u003eColor\u003c\/strong\u003e: Red \/ Black\u003c\/p\u003e","brand":"Huffy","offers":[{"title":"Default Title","offer_id":42445334118482,"sku":null,"price":699.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/7751\/files\/red_primus_1.webp?v=1781376771","url":"https:\/\/www.bmxguru.com\/products\/huffy-primus-bmx-race-frame-pro-xl-21-25tt-red-black","provider":"BMXGuru.com \/ C\u0026W Cycle","version":"1.0","type":"link"}