{"product_id":"electrical-bicycle-pas-senser-kt-d12l-kt-d12-d12l-12-magnet-3pin-connector-sm-waterproof-pedal-assist-sensor-accessories","title":"KT-D12L Left-Side E-Bike Pedal Assist Sensor, 12 Magnet, SM-3Y","description":"\u003cp\u003eThe motor stops helping when the pedal sensor stops reporting. This KT-D12L is the left-side version of the KT-D12 assist sensor, with twelve signal outputs and an SM-3Y three-wire plug, and it mounts on the axle without removing the crank. For anyone repairing an e-bike that has gone quiet.\u003c\/p\u003e\u003ch2\u003eAssist that follows the pedals again\u003c\/h2\u003e\u003cp style=\"margin:0 0 6px 0\"\u003e✅ \u003cstrong\u003eNo crank removal\u003c\/strong\u003e The left-side body sits on the axle, so the crank and bottom bracket stay untouched during the swap.\u003c\/p\u003e\u003cp style=\"margin:0 0 6px 0\"\u003e✅ \u003cstrong\u003eTwelve signals a turn\u003c\/strong\u003e Twelve outputs per pass of the magnet plate give the controller frequent updates, so assist picks up soon after you start pedalling.\u003c\/p\u003e\u003cp style=\"margin:0 0 6px 0\"\u003e✅ \u003cstrong\u003eA part, not a new bike\u003c\/strong\u003e When the sensor is the fault, swapping this small part keeps the motor, battery and controller you already own.\u003c\/p\u003e\u003cp style=\"margin:0 0 6px 0\"\u003e✅ \u003cstrong\u003eCable tie, not a bracket\u003c\/strong\u003e The body is held by a cable tie around the axle, so nothing is drilled and no bracket has to be sourced.\u003c\/p\u003e\u003cp style=\"margin:0 0 6px 0\"\u003e✅ \u003cstrong\u003eTwo sides to choose\u003c\/strong\u003e Left and right installation versions are offered, so the one your frame and cable route allow is the one to order.\u003c\/p\u003e\u003cp\u003eBefore ordering, trace the lead from the old sensor back to the controller and look at the plug. This part ends in an SM-3Y connector on a three-wire lead, and the twelve outputs are what the controller reads to decide when to add assistance.\u003c\/p\u003e\u003cp\u003eFitting runs in a short sequence: the sensor goes onto the left axle and is tied down with a cable tie, the two pieces of the magnet plate are joined and held with a circlip, and the plug goes into the controller. No crank puller is needed, which is what makes this a home job rather than a workshop booking.\u003c\/p\u003e\u003cp\u003eTwo versions exist, left and right, and KT-D12L is the left one. No IP rating is stated for this part, so it is not sold here as a waterproof item and prolonged soaking or a pressure washer is best avoided.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTechnical details\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eModel: KT-D12L, left-side installation\u003c\/li\u003e\n\u003cli\u003eSignal outputs: 12\u003c\/li\u003e\n\u003cli\u003eInterface: SM-3Y, three-wire lead\u003c\/li\u003e\n\u003cli\u003eMounting: on the e-bike axle, crank stays in place\u003c\/li\u003e\n\u003cli\u003eFixing: cable tie around the sensor body\u003c\/li\u003e\n\u003cli\u003eMagnet plate: two pieces, held with a circlip\u003c\/li\u003e\n\u003cli\u003eVariants: 2, left (KT-D12L) and right installation\u003c\/li\u003e\n\u003cli\u003ePack contents: sensor and magnet plate; cable tie inclusion not confirmed\u003c\/li\u003e\n\u003cli\u003eWater resistance: no IP rating stated\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg style=\"border:0px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;max-width:100%;box-sizing:border-box\" width=\"944\" height=\"624\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S8c970141bec449f2b69d80097eaf51b1B.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sfb81be7c80a1496b91a77ee5179e26e6r.jpg?width=1000\u0026amp;height=1000\u0026amp;hash=2000\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sd7a8394ba3264ad2a3e0fb5afeac71038.jpg?width=1000\u0026amp;height=1000\u0026amp;hash=2000\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg style=\"border:0px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;max-width:100%;box-sizing:border-box\" width=\"944\" height=\"612\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S83a0a7e7da0c4b5ebb026fa423722405Q.jpg?width=800\u0026amp;height=519\u0026amp;hash=1319\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg style=\"border:0px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;max-width:100%;box-sizing:border-box\" width=\"944\" height=\"566\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S51ecb01eb5ea4dd095ab92389ee2afaaU.jpg?width=800\u0026amp;height=480\u0026amp;hash=1280\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg style=\"border:0px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;max-width:100%;box-sizing:border-box\" width=\"944\" height=\"566\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S2081b6aaf12645c7b789b33ea555dd4fd.jpg?width=800\u0026amp;height=480\u0026amp;hash=1280\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S714dd263befe4daba251349f504861c0g.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg style=\"border:0px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;max-width:100%;box-sizing:border-box\" width=\"944\" height=\"623\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S6b33eabe10c84abf82652cf891e49916x.jpg?width=800\u0026amp;height=528\u0026amp;hash=1328\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg style=\"border:0px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;max-width:100%;box-sizing:border-box\" width=\"944\" height=\"797\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sc3841020245c442fa41e303abb3a0c2aY.jpg?width=800\u0026amp;height=675\u0026amp;hash=1475\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003eMatch the plug and the side to your bike, then fit the sensor and ride.\u003c\/p\u003e\u003cp\u003eSee more: \u003ca href=\"https:\/\/spy-shop.com\/collections\/bicycle-accessories\"\u003eexplore more bicycle accessories\u003c\/a\u003e\u003c\/p\u003e","brand":"Spy-shop.com","offers":[{"title":"Waterproof connector","offer_id":64123906031946,"sku":"1005010462602161-Waterproof connector","price":43.41,"currency_code":"EUR","in_stock":true},{"title":"SM connector","offer_id":64123906064714,"sku":"1005010462602161-SM connector","price":39.46,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0764\/5980\/2954\/files\/Sbdbd40ad64344c0c86eab9a58e112f4cw.webp?v=1793144993","url":"https:\/\/spy-shop.com\/el\/products\/electrical-bicycle-pas-senser-kt-d12l-kt-d12-d12l-12-magnet-3pin-connector-sm-waterproof-pedal-assist-sensor-accessories","provider":"Spy-shop.com","version":"1.0","type":"link"}