{"product_id":"vintage-gt-mach-one-4130-chromoly-bmx-race-bike","title":"Vintage GT Mach One 4130 Chromoly BMX Race Bike","description":"\u003cp\u003eWe're a mission-driven bike shop based in Colorado. Every sale helps refurbish and donate bikes to those in need through Bicycles for Humanity Colorado. Each item has been professionally inspected, thoroughly cleaned, carefully refurbished, and is ready for immediate use.\u003c\/p\u003e\n\n\u003cp\u003eThe GT Mach One is a classic BMX race bike built on a full 4130 chromoly steel frame and fork — the same high-tensile alloy used in aerospace tubing — giving it a lively, responsive ride that's noticeably lighter and stiffer than hi-ten steel entry-level bikes. The polished chrome finish is iconic GT racing livery, complemented by bold red and yellow 'GT Racing' wing graphics and a 'World Champions' roundel decal that speaks to GT's dominant BMX pedigree. The drivetrain runs a GT-branded 4-arm alloy crankset with a 44T black anodized chainring and KMC chain to a single-speed freewheel rear, which is exactly what you want on a race or park bike. Braking is handled by a rear U-brake (red hardware) with a front brake cable run — clean, minimal, and race-appropriate. Chrome GT rims are laced to unsealed hubs with Kenda\/JAAPRO Race Compound knobby tires. The cockpit sports a classic two-piece riser bar setup with a threaded stem, black GT seatpost, and GT-branded saddle. The saddle shows minor wear at the nose, and the drivetrain has light surface patina consistent with casual use, but the chrome frame and fork remain bright and structurally sound. This is a standout collector-grade or ready-to-ride BMX that will appeal to nostalgic riders, collectors, or anyone wanting a legitimate race-bred BMX.\u003c\/p\u003e\n\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eCondition\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eGreat - Light Signs Of Use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eCondition Notes\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eChrome frame and fork present in great condition — bright and clean with only minor surface marks and very light scuffs consistent with normal use. No dents, cracks, or structural damage observed. GT Racing decals are intact and vivid. Saddle shows minor wear\/cracking at the nose tip. Drivetrain (chain, chainring, crankset) shows light surface patina and minor grime. Rims are straight and bright. Brake hardware is functional with red caliper showing normal use. Overall a clean, solid example ready to ride.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eDiscipline\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eMountain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eBrand Compatibility\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eUniversal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eSpeed Compatibility\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003e1x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eMake\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eGT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eMach One\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eSuspension Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eRigid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eBrake Standard\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eRim Brake (direct mount)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eTire Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eClincher\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eCrankset\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eGT 4-Arm Alloy Crankset W\/ 44T Black Anodized Chainring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eCassette\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eSingle Speed Freewheel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eChain\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eKMC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eBrakes\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eGT U-Brake Rear, Front Brake Caliper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eWheelset\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eGT Chrome Rims, 36-Spoke\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eTires\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eAAPRO Race Compound Knobby 20\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eHandlebar\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eGT Two-Piece Riser Bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eStem\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eGT Threaded Stem\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eSeatpost\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eGT Black Alloy Seatpost\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eSaddle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eGT BMX Saddle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eFront Fork\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eGT 4130 Chromoly Fork\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-weight:600;\"\u003eCondition Notes\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eChrome frame and fork present in great condition — bright and clean with only minor surface marks and very light scuffs consistent with normal use. No dents, cracks, or structural damage observed. GT Racing decals are intact and vivid. Saddle shows minor wear\/cracking at the nose tip. Drivetrain (chain, chainring, crankset) shows light surface patina and minor grime. Rims are straight and bright. Brake hardware is functional with red caliper showing normal use. Overall a clean, solid example ready to ride.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eEvery item from Traveling Ground is fully refurbished, professionally inspected, and ships next business day.\u003c\/p\u003e","brand":"GT","offers":[{"title":"Default Title","offer_id":49647275671692,"sku":null,"price":949.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0717\/9010\/0620\/files\/uyzuw6d4jtzgy54zslf6_0ae9d22c-533a-419a-8b14-f2947abd3d06.png?v=1778255396","url":"https:\/\/travelingground.com\/products\/vintage-gt-mach-one-4130-chromoly-bmx-race-bike","provider":"Traveling Ground","version":"1.0","type":"link"}