{"product_id":"heartbreaker-frame-bmx-chris-harti-signature","title":"Heartbreaker BMX Frame Chris Harti Signature","description":"\u003ch1\u003eHeartbreaker BMX Frame Chris Harti Signature\u003c\/h1\u003e\n\u003cp\u003eThe Heartbreaker is a USA-made trails-specific BMX frame designed by Chris Harti for high-speed, big-jump riding. It runs a long, low geometry with a mellow head tube angle, low BB height, and extended rear end — all deliberate choices for riders who prioritize stability and control at speed over technical street or park performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eButted Supertherm top tube\u003c\/strong\u003e — Butted tubing removes material from low-stress mid-sections while retaining thickness at weld points, reducing weight without compromising strength where it matters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStraight gauge Supertherm down tube\u003c\/strong\u003e — Consistent wall thickness throughout the down tube provides maximum strength in a high-load area that takes significant impact force at trails\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble gussets\u003c\/strong\u003e — Additional gusseting at stress points reinforces the frame against the repeated high-impact landings typical of trails riding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlightly tapered seat stays and single bend chain stays\u003c\/strong\u003e — Tapered stays absorb trail vibration and reduce overall rear-end weight while the single bend chain stay profile provides clearance and a clean classic aesthetic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.4\" tire clearance even when slammed\u003c\/strong\u003e — Full tire clearance is maintained regardless of seat height adjustment, preventing tire rub on oversized rubber commonly run at trails\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble butted seat tube\u003c\/strong\u003e — Butted construction reduces weight at the seat tube while maintaining weld integrity at the top and bottom junction points\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLonger dropout slots with 4Q baked 14mm 3\/16\" dropouts\u003c\/strong\u003e — Extended slots provide more wheel positioning range to accommodate ideal gearing across 9, 10, and 11 tooth sprocket combinations; 4Q baking relieves post-weld stress for stronger, more consistent dropouts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWelded-on chainstay brake mounts\u003c\/strong\u003e — Fixed brake mounts on the chainstay provide a more rigid and reliable brake mounting point than bolt-on alternatives, reducing flex under braking\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThru-seat tube cable routing\u003c\/strong\u003e — Routes the brake cable internally through the seat tube, preventing the straddle hanger from contacting the down tube during riding — particularly relevant given the longer rear end length on this frame\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble down tube cable guides\u003c\/strong\u003e — Dual guides keep the brake cable tracked cleanly along the down tube without rattling or shifting position\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraditional slot seat clamp\u003c\/strong\u003e — No welded-on seat clamp keeps the aesthetic clean and allows use of a standard aftermarket clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngraved head tube logo\u003c\/strong\u003e — Engraved Heartbreaker branding on the head tube rather than a decal or sticker finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in USA\u003c\/strong\u003e — Domestic production with Supertherm tubing and 4Q baked heat treatment throughout\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Heartbreaker\u003c\/li\u003e\n\u003cli\u003eRider: Chris Harti (signature)\u003c\/li\u003e\n\u003cli\u003eTop tube lengths: 21\", 21.25\", 21.5\"\u003c\/li\u003e\n\u003cli\u003eRear end length: 13.8\"–14.5\"\u003c\/li\u003e\n\u003cli\u003eHead tube angle: 74.5°\u003c\/li\u003e\n\u003cli\u003eSeat tube angle: 71°\u003c\/li\u003e\n\u003cli\u003eBB height: 11.35\"\u003c\/li\u003e\n\u003cli\u003eStandover: 9.15\"\u003c\/li\u003e\n\u003cli\u003eHead tube: Integrated\u003c\/li\u003e\n\u003cli\u003eBottom bracket: Mid\u003c\/li\u003e\n\u003cli\u003eDropouts: 14mm, 3\/16\" thick, 4Q baked\u003c\/li\u003e\n\u003cli\u003eBrake mounts: Chainstay welded\u003c\/li\u003e\n\u003cli\u003eSeat clamp: Traditional slot\u003c\/li\u003e\n\u003cli\u003eSeat post diameter: 25.4mm\u003c\/li\u003e\n\u003cli\u003eWeight: 21\" — 5.18 lb (2.35 kg) \/ 21.25\" — 5.27 lb (2.39 kg) \/ 21.5\" — 5.3 lb (2.4 kg)\u003c\/li\u003e\n\u003cli\u003eCountry of manufacture: USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIdeal Gearing Chart\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e11 Tooth Driver\u003c\/strong\u003e 28\/11 and 30\/11 combinations cover 13.875\" to 14.375\" depending on half link use\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 Tooth Driver\u003c\/strong\u003e 27\/10, 28\/10, and 30\/10 combinations cover 13.875\" to 14.25\" depending on half link use\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e9 Tooth Driver\u003c\/strong\u003e 25\/9, 27\/9, and 28\/9 combinations cover 13.875\" to 14.375\" depending on half link use\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility and Ideal Use Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBuilt exclusively for trails riding and high-speed jump lines. The 74.5° head tube angle, 11.35\" BB height, and extended rear end are not optimized for street or park use — this geometry is purpose-built for maintaining control and stability at speed on dirt. The longer dropout slots and included gearing chart make it straightforward to dial in chain tension across a range of sprocket and driver combinations without a half link. Seat post is 25.4mm — a less common size than 27.2mm, so confirm post diameter before purchasing a replacement. Brake cable routing through the seat tube requires a brake setup compatible with internal routing.\u003c\/p\u003e","brand":"FIT Bike Co","offers":[{"title":"Gloss Clear \/ 21\"","offer_id":45037261619379,"sku":"30-FR-HART-GC-21.0","price":549.95,"currency_code":"USD","in_stock":false},{"title":"Gloss Clear \/ 21.25\"","offer_id":45037261652147,"sku":"30-FR-HART-GC-21.25","price":549.95,"currency_code":"USD","in_stock":false},{"title":"Gloss Clear \/ 21.5\"","offer_id":45037261684915,"sku":"30-FR-HART-GC-21.5","price":549.95,"currency_code":"USD","in_stock":false},{"title":"Matte Black \/ 21.25\"","offer_id":45037261553843,"sku":"30-FR-HART-BLK-21.25","price":549.95,"currency_code":"USD","in_stock":false},{"title":"Matte Black \/ 21.5\"","offer_id":45037261586611,"sku":"30-FR-HART-BLK-21.5","price":549.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8737\/2979\/files\/30-FR-HART_Gloss-Clear_a.jpg?v=1783468964","url":"https:\/\/time2shinebmx.com\/products\/heartbreaker-frame-bmx-chris-harti-signature","provider":"Time 2 Shine ","version":"1.0","type":"link"}