{"product_id":"sr-suntour-hesc-4-pin-torque-sensor-carrera-raleigh","title":"SR Suntour HESC 4-Pin Torque Sensor for Carrera \u0026 Raleigh E-Bikes","description":"\u003cp\u003eNot sure if your torque sensor is faulty? \u003ca href=\"https:\/\/madbicyclespares.com\/pages\/carrera-raleigh-ebike-torque-sensor-problems-fix\"\u003eRead our full diagnostic guide here\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eSR Suntour HESC 4-Pin Torque Sensor for Carrera \u0026amp; Raleigh E-Bikes\u003c\/h2\u003e\n\u003cp\u003eIf your Carrera or Raleigh e-bike has stopped providing pedal assist — or is showing an E21 or E22 error — this is the part you need. The SR Suntour HESC torque sensor (also called a crank sensor) is the most common cause of these faults, and replacing it gets most bikes back on the road. This is the 4-pin version, fitted to most pre-2021 HESC systems.\u003c\/p\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarrera models (typically pre-2021):\u003c\/strong\u003e Crossfire-e, Vulcan-e, Vengeance E, Subway E\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRaleigh models:\u003c\/strong\u003e Selected models using SR Suntour HESC drivetrain with 4-pin connector\u003c\/li\u003e\n\u003cli\u003eSuitable for SR Suntour HESC systems using the 4-pin ATS connector\u003c\/li\u003e\n\u003cli\u003eNot compatible with post-2021 models that use the 6-pin connector — check your connector before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e4-pin connection\u003c\/li\u003e\n\u003cli\u003eATS torque sensor unit\u003c\/li\u003e\n\u003cli\u003eFits 38T \/ 42T \/ 48T chainsets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon Signs You May Need This Sensor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePedal assist not working correctly\u003c\/li\u003e\n\u003cli\u003eIntermittent power or cut-outs while riding\u003c\/li\u003e\n\u003cli\u003eReduced or inconsistent pedal response\u003c\/li\u003e\n\u003cli\u003ePhysically damaged torque sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Information\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCheck whether your bike uses a 4-pin or 6-pin connector before ordering.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis sensor is designed for selected models up to 2020 and is not compatible with newer 2021+ systems that use the 6-pin version.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose This Sensor?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFixes E21 and E22 errors\u003c\/strong\u003e — the most common fault on pre-2021 Carrera and Raleigh HESC systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGets your bike working again\u003c\/strong\u003e — customers consistently report pedal assist restored after a straightforward swap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine SR Suntour part\u003c\/strong\u003e — exact OEM replacement, not an aftermarket copy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy to fit\u003c\/strong\u003e — no specialist tools required; customers describe the installation as straightforward\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheaper than a workshop repair\u003c\/strong\u003e — a fraction of the cost of a manufacturer service or new crankset\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot sure which version you need?\u003c\/strong\u003e Check your existing connector or \u003ca href=\"https:\/\/madbicyclespares.com\/pages\/carrera-raleigh-ebike-torque-sensor-problems-fix\"\u003euse our diagnostic guide\u003c\/a\u003e before ordering.\u003c\/p\u003e\n\u003cp\u003eOrder today — dispatched within 1 working day.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCompatible Bikes (4-Pin \/ Pre-2021 HESC Models)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCarrera Crossfire E, Carrera Vengeance E, Carrera Subway E, Carrera Vulcan E (typically 2018–2020 models). Raleigh Motus, Raleigh Array, Raleigh Stow-E-Way (pre-2021 models). All models using the SR Suntour HESC system with a 4-pin torque sensor connector. If your bike was manufactured after 2021, you may need the 6-pin version instead.\u003c\/strong\u003e\u003c\/p\u003e","brand":"MAD Bicycle Spares","offers":[{"title":"Default Title","offer_id":52731311882568,"sku":null,"price":39.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0834\/7716\/8456\/files\/4-pinSensor2.webp?v=1775428812","url":"https:\/\/madbicyclespares.com\/products\/sr-suntour-hesc-4-pin-torque-sensor-carrera-raleigh","provider":"MAD Bicycle Spares","version":"1.0","type":"link"}