{"product_id":"torque-sensor-ebike-conversion-kit-mid-drive-motor","title":"Torque Sensor EBike Conversion Kit Mid Drive Motor","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eTorque Sensor EBike Conversion Kit TSDZ2B TSDZ8 TSDZ16 Mid Drive Motor Kit Tongsheng 48V 500W 750W 80N.m 140N.m 160N.m Powerful High Torque Electric Bicycle Motor Engine for Commuter City Bike Road Mountain City Bike 68-73mm\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eCertification\u003c\/span\u003e: \u003cspan style=\"color:#333333\"\u003eCE\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eChain Wheel\u003c\/span\u003e: \u003cspan style=\"color:#333333\"\u003e42T for 500W \/44T for 750W \/ 46T for 1000W\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eDelivery Time\u003c\/span\u003e: \u003cspan style=\"color:#333333\"\u003e2 - 7 Days Delivery\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eDesign\u003c\/span\u003e: \u003cspan style=\"color:#333333\"\u003eBrushless\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eMax Torque\u003c\/span\u003e: \u003cspan style=\"color:#333333\"\u003e80N.M for 500W,140N.m for 750W, 160N.m for 1000W\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eMotor\u003c\/span\u003e: \u003cspan style=\"color:#333333\"\u003eSide Hung Motor\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eThe Motor Kits\u003c\/span\u003e: \u003cspan style=\"color:#333333\"\u003eBattery is not Included\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eVoltage\u003c\/span\u003e: \u003cspan style=\"color:#333333\"\u003e48V\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eWattage\u003c\/span\u003e: \u003cspan style=\"color:#333333\"\u003e\u0026gt; 400w\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv align=\"center\" style=\"text-align:center\"\u003e\u003cspan style=\"color:#0062b1; font-size:26px\"\u003e\u003cstrong\u003eVarstrom \u0026amp; Tongsheng Torque-Sensing Mid Motor Kit\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003eUpgrade your bicycle with genuine Varstrom torque-sensing power. The TSDZ2B 48V 500W, Z8 48V 750W, and TSDZ16 48V 1000W mid-drive kits transform standard mountain bikes, city bikes, and folding bikes into smooth, high-torque electric machines.\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003ePower flows through your existing drivetrain, so you keep the natural riding feel while gaining enough torque to climb steep grades without breaking a sweat. A new bidirectional free-wheeling clutch lets you pedal naturally with zero drag when the motor is off—unlike traditional one-way clutches. The latest reinforced 1T4 main wiring harness uses the Tongsheng communication protocol, ensuring stable connection with various displays. Contact strength is improved by 15%, significantly reducing after-sales issues and enhancing overall reliability. Nylon composite gears with external clutch handle higher torque while keeping operation quiet and extending drivetrain life.\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003eWhether you need a 500W city setup or a 1000W trail rig, this kit delivers factory-grade durability and intuitive torque-sensing assist.\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"color:#0062b1; font-size:26px\"\u003e\u003cstrong\u003eRide Modes That Adapt to You\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003eMultiple cycling modes put full control on your handlebar. E-Bike Mode delivers direct motor power via thumb throttle. Torque Sensor Assist reads your pedaling force in real time—the harder you pedal, the faster you go. No jerky on\/off feeling, just smooth, proportional power that matches your effort. Walk Mode provides low-speed walking assistance when you need to push the bike. Normal Bike Mode shuts the motor off completely for unassisted riding.\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"color:#0062b1; font-size:26px\"\u003e\u003cstrong\u003eLinear Thumb Throttle — Press for Instant Power\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003eThe Varstrom motor features a non-gear thumb throttle that delivers intuitive, linear power control. The more you press, the stronger the output—press to the limit for full power. No preset power levels, just seamless acceleration that responds directly to your thumb input.\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan style=\"color:#0062b1; font-size:26px\"\u003e\u003cstrong\u003eWide Compatibility — Check Before You Buy\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003eOur kits fit bikes with a bottom-bracket inner diameter of 33.5mm to 36mm and threaded BSA shells. All TSDZ2B, Z8, and TSDZ16 motors suit 68–73mm bracket lengths. \u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003eCompatible with mountain bikes, road bikes, hybrids, folding bikes, and commuter bikes. Not recommended for carbon-fiber frames or coaster-brake bicycles. Please measure your bottom-bracket width and inner diameter before ordering. Send us a photo if you are unsure — we will confirm fitment within 24 hours.\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003eMid-Drive Power for Every Rider\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cspan style=\"color:#0062b1; font-size:26px\"\u003e\u003cstrong\u003eTSDZ16 48V 1000W\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:24px\"\u003e — The heavy-duty choice. Packs 160N.m of torque for cargo hauling, steep mountain trails, and sand\/snow riding. Reaches 50–60 km\/h under standard conditions. Features IPX6 water resistance. Supplied with a\u003c\/span\u003e\u003cspan style=\"color:#0062b1; font-size:24px\"\u003e\u003cstrong\u003e 46T chainring\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:24px\"\u003e, designed for extreme off-road and heavy-load applications. \u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cspan style=\"font-size:24px\"\u003eThe BB shell wall thickness must be \u003c\/span\u003e\u003cspan style=\"color:#0062b1; font-size:24px\"\u003eT≤ 12mm\u003c\/span\u003e\u003cspan style=\"font-size:24px\"\u003e for proper installation.\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"color:#0062b1; font-size:24px\"\u003eChainstay Clearance Dimension: ≥50mm. \u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003eFits standard 68–73mm bottom brackets.\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cspan style=\"color:#0062b1; font-size:26px\"\u003e\u003cstrong\u003eZ8 48V 750W\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:24px\"\u003e — The hill-climbing specialist. Delivers 140N.m of torque and a top speed of 45–55 km\/h, handling steep climbs with ease. IP65 rated. Includes a \u003c\/span\u003e\u003cspan style=\"color:#0062b1; font-size:24px\"\u003e\u003cstrong\u003e44T chainring\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:24px\"\u003e, ideal for hilly terrain and spirited commuting. \u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cspan style=\"font-size:24px\"\u003eThe BB shell wall thickness must be\u003c\/span\u003e\u003cspan style=\"color:#0062b1; font-size:24px\"\u003e T≤ 10.5mm\u003c\/span\u003e\u003cspan style=\"font-size:24px\"\u003e for proper installation.\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"color:#0062b1; font-size:24px\"\u003eChainstay Clearance Dimension: ≥43mm. \u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003eFits standard 68–73mm bottom brackets.\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cspan style=\"color:#0062b1; font-size:26px\"\u003e\u003cstrong\u003eTSDZ2B 48V 500W\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:24px\"\u003e — Light, efficient, and street-legal friendly. Rated torque reaches 80N.m with a top speed of 38–45 km\/h. IP65 rated. Comes with a \u003c\/span\u003e\u003cspan style=\"color:#0062b1; font-size:24px\"\u003e\u003cstrong\u003e42T chainring\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:24px\"\u003e, offering a good balance for commuting and light trails.\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cspan style=\"font-size:24px\"\u003eThe BB shell wall thickness must be \u003c\/span\u003e\u003cspan style=\"color:#0062b1; font-size:24px\"\u003eT≤ 8.5mm\u003c\/span\u003e\u003cspan style=\"font-size:24px\"\u003e for proper installation.Chainstay \u003c\/span\u003e\u003cspan style=\"color:#0062b1; font-size:24px\"\u003eClearance Dimension: ≥48mm.\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003eFits standard 68–73mm bottom brackets.\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:26px\"\u003e\u003cstrong\u003eIn the Box:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003e1× Tongsheng mid-drive motor unit (model per your selection)\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003e1× Display (DZ40 \/VD18MT \/ EKD01 \/ SW2-M58 per your choice)\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003e1× Speed sensor with magnet\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003e1× Chainring (500W: 42T \/ 750W: 44T \/ 1000W: 46T )\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003e1× Wiring harness and 1T4 connector cable\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003e1× Thumb throttle\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003e1× Brake levers or brake sensors (Optional)\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003e1× Installation tool set and locking nuts\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"font-size:24px\"\u003e1× User manual\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"font-size:24px\"\u003ePlease note that battery must be purchased and shipped separately, kit-only orders will not include battery.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n","brand":"Roots and Rover","offers":[{"title":"48V500W No Battery \/ VD04 5PAS \/ Brake Lever|United States","offer_id":49678569046254,"sku":"14:-2;1552:200011852;200007763:201336106;247066636:-5","price":584.99,"currency_code":"USD","in_stock":false},{"title":"48V500W No Battery \/ 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