{"product_id":"bafang-h640-geared-hub-motor","title":"Bafang H640 750W Geared Hub Motor — Cassette Freehub","description":"\u003cstyle\u003e\n.hpc-product { font-family: 'Barlow', -apple-system, BlinkMacSystemFont, sans-serif; color: #141414; line-height: 1.6; font-size: 15px; }\n.hpc-product .hpc-lead { font-size: 16px; line-height: 1.65; margin: 0 0 1.25rem; }\n.hpc-product h2 { font-family: 'Barlow Condensed', 'Barlow', sans-serif; font-size: 24px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; color: #141414; margin: 2rem 0 0.75rem; padding-bottom: 0.5rem; border-bottom: 3px solid #ed3624; line-height: 1.2; }\n.hpc-product h2:first-of-type { margin-top: 1.5rem; }\n.hpc-product p { margin: 0 0 1rem; }\n.hpc-product ul.hpc-features { list-style: none; padding: 0; margin: 0 0 1.25rem; }\n.hpc-product ul.hpc-features li { padding: 8px 0 8px 28px; position: relative; border-bottom: 1px solid rgba(20,20,20,0.08); font-size: 15px; }\n.hpc-product ul.hpc-features li:last-child { border-bottom: none; }\n.hpc-product ul.hpc-features li:before { content: \"\\203A\"; position: absolute; left: 8px; top: 6px; color: #ed3624; font-weight: 700; font-size: 20px; line-height: 1; }\n.hpc-product ul.hpc-features li strong { color: #ed3624; font-weight: 600; }\n.hpc-product .hpc-spec-table { width: 100%; border-collapse: collapse; margin: 0 0 1.25rem; background: #141414; border-radius: 4px; overflow: hidden; }\n.hpc-product .hpc-spec-table tr { border-bottom: 1px solid rgba(255,255,255,0.08); }\n.hpc-product .hpc-spec-table tr:last-child { border-bottom: none; }\n.hpc-product .hpc-spec-table td { padding: 10px 14px; font-size: 14px; color: #ffffff; }\n.hpc-product .hpc-spec-table td.hpc-spec-label { width: 45%; color: rgba(255,255,255,0.6); font-family: 'Barlow Condensed', 'Barlow', sans-serif; text-transform: uppercase; font-size: 13px; letter-spacing: 0.03em; }\n.hpc-product .hpc-spec-table td.hpc-spec-value { font-weight: 600; color: #ffffff; }\n.hpc-product .hpc-spec-table td .hpc-peak { color: #ed3624; font-weight: 700; }\n.hpc-product ul.hpc-list { list-style: none; padding: 0; margin: 0 0 1.25rem; }\n.hpc-product ul.hpc-list li { padding: 6px 0 6px 20px; position: relative; font-size: 15px; }\n.hpc-product ul.hpc-list li:before { content: \"\"; position: absolute; left: 4px; top: 14px; width: 8px; height: 2px; background: #ed3624; }\n.hpc-product .hpc-cta-box { background: #141414; color: #ffffff; padding: 1.25rem 1.5rem; border-radius: 4px; margin: 1.25rem 0 0; }\n.hpc-product .hpc-cta-box p { color: #ffffff; margin: 0 0 0.5rem; }\n.hpc-product .hpc-cta-box p:last-child { margin-bottom: 0; }\n.hpc-product .hpc-cta-box a { color: #ed3624; text-decoration: none; font-weight: 600; }\n.hpc-product .hpc-cta-box strong { color: #ed3624; }\n.hpc-product a { color: #ed3624; text-decoration: none; font-weight: 500; }\n.hpc-product a:hover { text-decoration: underline; }\n.hpc-product .hpc-power-callout { background: #ed3624; color: #ffffff; padding: 14px 18px; border-radius: 4px; margin: 0 0 1.25rem; font-family: 'Barlow Condensed', 'Barlow', sans-serif; text-transform: uppercase; letter-spacing: 0.04em; font-size: 16px; font-weight: 600; }\n.hpc-product .hpc-power-callout strong { color: #ffffff; font-size: 20px; font-weight: 700; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"hpc-product\"\u003e\n\n\u003cp class=\"hpc-lead\"\u003e\u003cstrong\u003eBrand new, OEM Bafang H640 (RM G0900.750.D\/DC) geared rear hub motor\u003c\/strong\u003e — the proven workhorse engineered for eMTB, eSpeed, and high-performance e-bike conversions. Cassette freehub design (7–11 speed compatible), 80Nm of torque, and 1:5 planetary gear reduction for strong acceleration and reliable hill-climbing performance.\u003c\/p\u003e\n\n\u003cdiv class=\"hpc-power-callout\"\u003eRated 750W  |  \u003cstrong\u003eUp to 2000W peak\u003c\/strong\u003e with the HPC controller\u003c\/div\u003e\n\n\u003cp\u003eHi-Power Cycles stocks the H640 for builders who want a clean, quiet, low-maintenance hub motor without the drivetrain wear of a mid-drive. Paired with the matched HPC controller, the H640 unlocks up to 2000W of peak output — far beyond what stock Bafang controllers deliver — making it one of the most powerful geared hubs on the market.\u003c\/p\u003e\n\n\u003ch2\u003eWhy the Bafang H640?\u003c\/h2\u003e\n\u003cul class=\"hpc-features\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003e750W continuous power, up to 2000W peak\u003c\/strong\u003e when paired with the HPC high-output controller\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e80Nm of torque\u003c\/strong\u003e — strong enough for loaded cargo bikes, fat-tire builds, and steep climbs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCassette freehub\u003c\/strong\u003e (not freewheel) — accepts 7-, 8-, 9-, 10-, and 11-speed cassettes for modern drivetrain compatibility\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIP-rated waterproof construction\u003c\/strong\u003e — built to handle rain, dust, and trail conditions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuiet, smooth planetary gear reduction\u003c\/strong\u003e — far less noticeable than direct-drive hubs at low speed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGenuine OEM Bafang\u003c\/strong\u003e sourced through authorized supply chain\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable class=\"hpc-spec-table\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd class=\"hpc-spec-label\"\u003eModel\u003c\/td\u003e\n\u003ctd class=\"hpc-spec-value\"\u003eBafang H640 \/ RM G0900.750.D\/DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd class=\"hpc-spec-label\"\u003eRated Power\u003c\/td\u003e\n\u003ctd class=\"hpc-spec-value\"\u003e750W (48V)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd class=\"hpc-spec-label\"\u003ePeak Power (HPC Controller)\u003c\/td\u003e\n\u003ctd class=\"hpc-spec-value\"\u003e\u003cspan class=\"hpc-peak\"\u003eUp to 2000W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd class=\"hpc-spec-label\"\u003eMax Torque\u003c\/td\u003e\n\u003ctd class=\"hpc-spec-value\"\u003e80 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd class=\"hpc-spec-label\"\u003eVoltage\u003c\/td\u003e\n\u003ctd class=\"hpc-spec-value\"\u003e48V nominal (52V compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd class=\"hpc-spec-label\"\u003eMax Speed\u003c\/td\u003e\n\u003ctd class=\"hpc-spec-value\"\u003e28–32 mph (depending on wheel size \u0026amp; controller)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd class=\"hpc-spec-label\"\u003eWeight\u003c\/td\u003e\n\u003ctd class=\"hpc-spec-value\"\u003e~5.6 kg (12.3 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd class=\"hpc-spec-label\"\u003eDropout (OLD)\u003c\/td\u003e\n\u003ctd class=\"hpc-spec-value\"\u003e135–142 mm rear\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd class=\"hpc-spec-label\"\u003eFreehub Type\u003c\/td\u003e\n\u003ctd class=\"hpc-spec-value\"\u003eCassette (7–11 speed compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd class=\"hpc-spec-label\"\u003eBrake Compatibility\u003c\/td\u003e\n\u003ctd class=\"hpc-spec-value\"\u003eDisc brake only\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd class=\"hpc-spec-label\"\u003eSpoke Pattern\u003c\/td\u003e\n\u003ctd class=\"hpc-spec-value\"\u003e36H × 13G\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd class=\"hpc-spec-label\"\u003eWheel Sizes\u003c\/td\u003e\n\u003ctd class=\"hpc-spec-value\"\u003e26\", 27.5\", 700C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd class=\"hpc-spec-label\"\u003eWaterproof Rating\u003c\/td\u003e\n\u003ctd class=\"hpc-spec-value\"\u003eIPX5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd class=\"hpc-spec-label\"\u003eGear Reduction\u003c\/td\u003e\n\u003ctd class=\"hpc-spec-value\"\u003e1:5 planetary (15T\/30T\/75T)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd class=\"hpc-spec-label\"\u003ePole Pairs\u003c\/td\u003e\n\u003ctd class=\"hpc-spec-value\"\u003e10 (20 magnets)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul class=\"hpc-list\"\u003e\n  \u003cli\u003e(1) Bafang H640 hub motor (bare hub, no wheel build)\u003c\/li\u003e\n  \u003cli\u003eMotor cable with G11.6 connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuild Notes \u0026amp; Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe H640 is a \u003cstrong\u003ebare hub motor\u003c\/strong\u003e — it does not include a rim, spokes, controller, display, or battery. We can lace this hub into a custom hand-built wheel — \u003ca href=\"https:\/\/hpcbikes.com\/pages\/contact-us\"\u003econtact us\u003c\/a\u003e for a complete wheel build quote.\u003c\/p\u003e\n\n\u003cp style=\"margin-bottom: 0.5rem;\"\u003eFor maximum performance, pair the H640 with:\u003c\/p\u003e\n\u003cul class=\"hpc-list\"\u003e\n  \u003cli\u003eA 48V or 52V lithium battery rated for high continuous discharge (the HPC controller can pull serious current at 2000W peak)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe HPC high-output controller\u003c\/strong\u003e — unlocks the full 2000W peak output from the H640. Stock Bafang controllers will limit you to roughly half that.\u003c\/li\u003e\n  \u003cli\u003eA Bafang-compatible display (DP C181, DP C18, C961) or aftermarket eBike display\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Buy from Hi-Power Cycles?\u003c\/h2\u003e\n\u003cp\u003eHPC has been building and selling high-performance electric bikes since 2008, with 20,000+ customer builds, US Special Forces and Army Corps of Engineers as verified clients, and a GSA Schedule contract (#47QSMS24D005F) for federal and military sales. Every component we sell is sourced through authorized channels and backed by real US-based technical support out of Simi Valley, California.\u003c\/p\u003e\n\n\u003cdiv class=\"hpc-cta-box\"\u003e\n\u003cp\u003eQuestions about fitment, wheel building, or pairing the H640 with our 2000W controller?\u003c\/p\u003e\n\u003cp\u003eEmail \u003ca href=\"mailto:sales@hpcbikes.com\"\u003esales@hpcbikes.com\u003c\/a\u003e or call \u003cstrong\u003e(818) 734-1600\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Hi Power Cycles","offers":[{"title":"Default Title","offer_id":48540999385323,"sku":null,"price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0056\/3059\/1040\/files\/IMG_0819-Photoroom.jpg?v=1779672339","url":"https:\/\/hpcbikes.com\/products\/bafang-h640-geared-hub-motor","provider":"Hi Power Cycles","version":"1.0","type":"link"}