{"product_id":"ultimate-mtx-48v-250w-road-legal-e-bike-conversion-kit-hg-cassette-1-11-speed-rear-wheel-48v-19-2ah-lg-battery","title":"Ultimate MTX 48V 250W Road Legal E Bike Conversion Kit HG Cassette 1-11 Speed Rear Wheel | 48V 19.2AH LG Battery","description":"\u003cdiv style=\"max-width: 980px; margin: 20px auto; background: #000000; border: 2px solid #1f6feb; border-radius: 14px; padding: 22px; box-shadow: 0 0 20px rgba(31,111,235,0.22); font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #c9d1d9; line-height: 1.7; font-size: 16px;\"\u003e\n\n\u003c!-- HEADER --\u003e\n\u003cdiv style=\"background: linear-gradient(90deg, #151515c9, #151515c9); border: 1px solid #30363d; border-radius: 12px; padding: 16px; margin-bottom: 14px;\"\u003e\n  \u003ch3 style=\"margin: 0; color: #58a6ff; font-size: 20px; text-transform: uppercase; letter-spacing: 0.8px; font-weight: 800;\"\u003e\n🔋🚲 250W Cassette Hub Motor Conversion Kit – Plug \u0026amp; Play, Road-Legal Mode\n  \u003c\/h3\u003e\n  \u003cp style=\"margin: 6px 0 0; color: #8b949e;\"\u003e\nWe offer one of the best 250W cassette hub motor conversion kits available for bikes with rear dropouts of ≥135 mm and HG cassette drivetrains (1–11 speed). This kit is designed to be lightweight, compact, strong, and easy to install, while still delivering excellent performance for its class. ⚡ Actual performance depends on rider weight, terrain, and weather.\u003cbr\u003e\nTypical performance (private land): ~20–25 mph top speed (depends on rider weight\/terrain) and ~15–30 miles per charge. For more torque and higher top speed, use a 48V or 52V battery.\nUK public roads: Street Mode limits assist to 15.5 mph (25 km\/h) with pedal assist only.  \u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c!-- KEY FEATURES --\u003e\n\u003cdiv style=\"background: #151515c9; border: 1px solid #30363d; border-radius: 12px; padding: 16px; margin-bottom: 14px;\"\u003e\n  \u003ch4 style=\"margin: 0 0 10px; color: #58a6ff; text-transform: uppercase; letter-spacing: 0.6px; font-size: 16px; border-bottom: 1px solid #30363d; padding-bottom: 8px;\"\u003e\n📦 What’s in the Box\n  \u003c\/h4\u003e\n\n  \u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n    \u003cli style=\"margin: 6px 0;\"\u003e✅ All plug-and-play waterproof connections\u003cbr\u003e\n✅ 250W brushless geared rear hub motor (HG cassette body, fits 135 mm dropout)\u003cbr\u003e\n✅ HG-style cassette fitment compatible with 1–11 speed setups\u003cbr\u003e\n✅ All-black MTX39 lightweight double-wall aluminium rim\u003cbr\u003e\n✅ Disc Brakes ONLY\u003cbr\u003e\n✅ 36 stainless spokes (black)\u003cbr\u003e\n✅ SW900 colour display\u003cbr\u003e\n✅ 17A DC Moto controller (36V \/ 48V \/ 52V), XT60 female\u003cbr\u003e\n✅ 3-in-1 data cable\u003cbr\u003e\n✅ Slim Line half-twist throttle + left-hand grip (stealthy look)\u003cbr\u003e\n✅ VL-12 Pedal Assist Sensor (PAS)\u003cbr\u003e\n✅ Waterproof controller box\u003cbr\u003e\n✅ Headlight (controlled via the display)\u003cbr\u003e\n✅ Tyre levers, cable wrap, cable ties\u003cbr\u003e\n✅ Waterproof motor extension cable\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003c!-- COMPATIBILITY --\u003e\n\u003cdiv style=\"background: #151515c9; border: 1px solid #30363d; border-radius: 12px; padding: 16px; margin-bottom: 14px;\"\u003e\n  \u003ch4 style=\"margin: 0 0 10px; color: #58a6ff; text-transform: uppercase; letter-spacing: 0.6px; font-size: 16px; border-bottom: 1px solid #30363d; padding-bottom: 8px;\"\u003e\n⚖️ Road-Legal Mode (UK)\n  \u003c\/h4\u003e\n\n  \u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n    \u003cli style=\"margin: 6px 0;\"\u003e🔘 Hold the down button on the display to activate road-legal mode\u003cbr\u003e\n👣 “Walk\/Person” icon shows when active\u003cbr\u003e\n🚴 Limits PAS to 15.5 mph (25 km\/h) and disables the throttle\u003cbr\u003e\n✅ To be road-legal, use PAS only with the throttle off\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n  \u003cdiv style=\"background: #151515c9; border: 1px solid #30363d; border-radius: 12px; padding: 16px; margin-bottom: 14px;\"\u003e\n  \u003ch4 style=\"margin: 0 0 10px; color: #58a6ff; text-transform: uppercase; letter-spacing: 0.6px; font-size: 16px; border-bottom: 1px solid #30363d; padding-bottom: 8px;\"\u003e\n🔋 Battery Compatibility \u0026amp; Options\n  \u003c\/h4\u003e\n\n  \u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n    \u003cli style=\"margin: 6px 0;\"\u003eThis kit is fully compatible with 36V, 48V, and 52V batteries, giving you flexibility depending on the performance you’re looking for.\u003cbr\u003e\n\n⚡ 36V – Smooth, efficient riding with moderate speed\u003cbr\u003e\n⚡ 48V – Ideal balance of power and range (recommended)\u003cbr\u003e\n⚡ 52V – Increased torque and higher top-end performance\u003cbr\u003e\nYou can purchase this kit on its own if you already have a compatible battery, or choose to buy it with our matched 48V battery for a complete plug-and-play setup.\u003cbr\u003e\n\nIf you’re looking for more range or upgraded performance, you’re free to select any compatible battery from our store to suit your build.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n  \n\n      \u003cdiv style=\"background: #151515c9; border: 1px solid #30363d; border-radius: 12px; padding: 16px; margin-bottom: 14px;\"\u003e\n  \u003ch4 style=\"margin: 0 0 10px; color: #58a6ff; text-transform: uppercase; letter-spacing: 0.6px; font-size: 16px; border-bottom: 1px solid #30363d; padding-bottom: 8px;\"\u003e\n🔋 Battery Bundle (Optional)\n  \u003c\/h4\u003e\n\n  \u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n    \u003cli style=\"margin: 6px 0;\"\u003eAdd a battery at checkout and receive:\n\u003cbr\u003e\n🔹 48V 14Ah Poly Downtube Battery + 2A UK charger, rubber pads, 2 keys, XT60\u003cbr\u003e\n🔹 Built using Grade A original manufactured cells for high performance, reliability, and long-lasting longevity\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n        \u003cdiv style=\"background: #151515c9; border: 1px solid #30363d; border-radius: 12px; padding: 16px; margin-bottom: 14px;\"\u003e\n  \u003ch4 style=\"margin: 0 0 10px; color: #58a6ff; text-transform: uppercase; letter-spacing: 0.6px; font-size: 16px; border-bottom: 1px solid #30363d; padding-bottom: 8px;\"\u003e\n⚙️ Cassette Options\n  \u003c\/h4\u003e\n\n  \u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n    \u003cli style=\"margin: 6px 0;\"\u003eWe can install a 7\/8\/9\/10-speed cassette if you add one to your order from our store.\u003cbr\u003e\nℹ️ 7-speed requires a 2.5 mm spacer.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n        \u003cdiv style=\"background: #151515c9; border: 1px solid #30363d; border-radius: 12px; padding: 16px; margin-bottom: 14px;\"\u003e\n  \u003ch4 style=\"margin: 0 0 10px; color: #58a6ff; text-transform: uppercase; letter-spacing: 0.6px; font-size: 16px; border-bottom: 1px solid #30363d; padding-bottom: 8px;\"\u003e\n🧩 Use Without Certain Accessories\n  \u003c\/h4\u003e\n\n  \u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n    \u003cli style=\"margin: 6px 0;\"\u003e🏁 You may run throttle-only or omit PAS on private land\/off-road\u003cbr\u003e\n⚠️ For road-legal use, PAS must be used and the throttle disabled\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n        \u003cdiv style=\"background: #151515c9; border: 1px solid #30363d; border-radius: 12px; padding: 16px; margin-bottom: 14px;\"\u003e\n  \u003ch4 style=\"margin: 0 0 10px; color: #58a6ff; text-transform: uppercase; letter-spacing: 0.6px; font-size: 16px; border-bottom: 1px solid #30363d; padding-bottom: 8px;\"\u003e\n🛡️ Warranty\n  \u003c\/h4\u003e\n\n  \u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n    \u003cli style=\"margin: 6px 0;\"\u003e🧰 3-month warranty on the kit\u003cbr\u003e\n🔋 12-month warranty on the battery (if purchased)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n          \u003cdiv style=\"background: #151515c9; border: 1px solid #30363d; border-radius: 12px; padding: 16px; margin-bottom: 14px;\"\u003e\n  \u003ch4 style=\"margin: 0 0 10px; color: #58a6ff; text-transform: uppercase; letter-spacing: 0.6px; font-size: 16px; border-bottom: 1px solid #30363d; padding-bottom: 8px;\"\u003e\n🛠️ Tips \u0026amp; Tricks\n  \u003c\/h4\u003e\n\n  \u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n    \u003cli style=\"margin: 6px 0;\"\u003e🔧 Chain whip \u0026amp; cassette tool required (available in our store)\u003cbr\u003e\n🧲 Ensure the axle seats fully in the dropouts; tighten both 19 mm nuts\u003cbr\u003e\n🛑 Remove the transport spacer before installing the disc rotor\u003cbr\u003e\n🧴 Lightly grease the cassette spline before install\u003cbr\u003e\n🛞 Use slime inner tubes to reduce punctures\u003cbr\u003e\n🧷 Remove the brake caliper for easier wheel installation\u003cbr\u003e\n🔌 If the wheel doesn’t spin freely, check phase wires aren’t touching\u003cbr\u003e\n🧵 Apply thread-lock to rotor bolts to protect the motor cable\u003cbr\u003e\n🗜️ Recheck spoke tension after initial rides\u003cbr\u003e\n🦾 Fit a torque arm if possible for added safety\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n          \u003cdiv style=\"background: #151515c9; border: 1px solid #30363d; border-radius: 12px; padding: 16px; margin-bottom: 14px;\"\u003e\n  \u003ch4 style=\"margin: 0 0 10px; color: #58a6ff; text-transform: uppercase; letter-spacing: 0.6px; font-size: 16px; border-bottom: 1px solid #30363d; padding-bottom: 8px;\"\u003e\n🧰 Optional Extras\n  \u003c\/h4\u003e\n\n  \u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n    \u003cli style=\"margin: 6px 0;\"\u003ePrefer a full twist throttle? 🌀 Leave a note at checkout and we’ll swap it in.\n\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n      \u003cdiv style=\"background: #151515c9; border: 1px solid #30363d; border-radius: 12px; padding: 16px; margin-bottom: 14px;\"\u003e\n  \u003ch4 style=\"margin: 0 0 10px; color: #58a6ff; text-transform: uppercase; letter-spacing: 0.6px; font-size: 16px; border-bottom: 1px solid #30363d; padding-bottom: 8px;\"\u003e\n    🚚 Shipping \u0026amp; Returns\n  \u003c\/h4\u003e\n\n  \u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n    \u003cli style=\"margin: 6px 0;\"\u003e📦 Orders dispatched within 24 hours (Mon–Fri) if ordered before 1PM\u003c\/li\u003e\n    \u003cli style=\"margin: 6px 0;\"\u003e🚛 Carriers: Royal Mail, DPD or FedEx (Tracked)\u003c\/li\u003e\n    \u003cli style=\"margin: 6px 0;\"\u003e⏱️ Estimated delivery: 1–2 working days\u003c\/li\u003e\n    \u003cli style=\"margin: 6px 0;\"\u003e↩️ 30-day FREE returns – Buyer pays postage – Item must be returned in new condition\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n  \n\u003c!-- WHAT'S INCLUDED --\u003e\n\u003cdiv style=\"background: #151515c9; border: 1px solid #30363d; border-radius: 12px; padding: 16px; margin-bottom: 14px;\"\u003e\n  \u003ch4 style=\"margin: 0 0 10px; color: #58a6ff; text-transform: uppercase; letter-spacing: 0.6px; font-size: 16px; border-bottom: 1px solid #30363d; padding-bottom: 8px;\"\u003e\n    🤝 Need Help?\n  \u003c\/h4\u003e\n\n  \u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n    \u003cli style=\"margin: 6px 0;\"\u003eWe aim to respond to all messages within 24 hours Monday–Friday 9am – 6pm and some weekends.\nOur team is always friendly \u0026amp; customer-focused, here to help with your e-bike build. 💬\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003c!-- CTA --\u003e\n\u003cdiv style=\"text-align: center; margin-top: 16px;\"\u003e\n  \u003cdiv style=\"display: inline-block; background: linear-gradient(90deg, #1f6feb, #58a6ff); color: #ffffff; padding: 12px 22px; border-radius: 10px; font-weight: bold; font-size: 15px; letter-spacing: 0.4px; box-shadow: 0 0 12px rgba(88,166,255,0.5);\"\u003e\n    ⚡ Ride Safe! 🚴💨\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"UK E-Bike Parts","offers":[{"title":"26\" \/ No!","offer_id":58446374142287,"sku":"BUN-250W-MTX-26-NOBAT","price":199.0,"currency_code":"GBP","in_stock":true},{"title":"26\" \/ Yes please!","offer_id":58446374175055,"sku":"BUN-250W-MTX-26-48V19.2AH","price":409.0,"currency_code":"GBP","in_stock":true},{"title":"27.5\" \/ No!","offer_id":58446374207823,"sku":"BUN-250W-MTX-27.5-NOBAT","price":199.0,"currency_code":"GBP","in_stock":true},{"title":"27.5\" \/ Yes please!","offer_id":58446374240591,"sku":"BUN-250W-MTX-27.5-48V19.2AH","price":409.0,"currency_code":"GBP","in_stock":true},{"title":"29\" \/ No!","offer_id":58446374273359,"sku":"BUN-250W-MTX-29-NOBAT","price":199.0,"currency_code":"GBP","in_stock":true},{"title":"29\" \/ Yes please!","offer_id":58446374306127,"sku":"BUN-250W-MTX-29-48V19.2AH","price":409.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/3421\/3711\/files\/ChatGPTImageAug10_2026_11_06_03PM.png?v=1786385352","url":"https:\/\/ukebikepartsdirect.com\/products\/ultimate-mtx-48v-250w-road-legal-e-bike-conversion-kit-hg-cassette-1-11-speed-rear-wheel-48v-19-2ah-lg-battery","provider":"UK E-Bike Parts","version":"1.0","type":"link"}