{"product_id":"wahoo-trackr-speed","title":"Wahoo TRACKR SPEED Sensor","description":"\u003cp\u003eThe current-generation Wahoo speed sensor. Magnet-less, mounts to the wheel hub, and rated for up to 200 hours on the supplied CR2032. It fits hubs up to 40mm in diameter and is IPX7 sealed against rain and sweat.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIf you train on a spin bike or a direct drive trainer, this is not the sensor you want.\u003c\/strong\u003e It measures a turning wheel. Wahoo state explicitly that it is not compatible with spin bikes, and on a direct drive trainer your rear wheel is off the bike entirely. The \u003ca href=\"\/product\/wahoo-rpm-cadence-sensor\"\u003eRPM cadence sensor\u003c\/a\u003e is the right choice in both cases.\u003c\/p\u003e\n\u003ch2\u003eWho this suits\u003c\/h2\u003e\n\u003cp\u003eOutdoor riders wanting speed and distance without a GPS head unit, and riders on rollers or wheel-on trainers where the rear wheel still turns — the \u003ca href=\"\/product\/kickr-rollr-smart-bike-roller-trainer\"\u003eKICKR ROLLR\u003c\/a\u003e, \u003ca href=\"\/product\/elite-nero-smart-interactive-rollers\"\u003eElite Nero\u003c\/a\u003e and similar.\u003c\/p\u003e\n\u003ch2\u003eWho should look elsewhere\u003c\/h2\u003e\n\u003cp\u003eSpin bike and gym bike users, and direct drive trainer users. If you want both speed and cadence for an older bike, the \u003ca href=\"\/product\/wahoo-rpm-speed-cadence-combo\"\u003eRPM Speed and Cadence combo\u003c\/a\u003e is better value.\u003c\/p\u003e\n\u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMagnet-less hub mounted speed sensor\u003c\/li\u003e\n\u003cli\u003eDimensions: 35 x 32 x 18mm. Weight 13g\u003c\/li\u003e\n\u003cli\u003eBattery: CR2032 included, up to 200 hours\u003c\/li\u003e\n\u003cli\u003eMaximum hub diameter: 40mm\u003c\/li\u003e\n\u003cli\u003eWater rating: IPX7 — 1m for 30 minutes\u003c\/li\u003e\n\u003cli\u003eNot compatible with spin bikes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDelivery, warranty and returns\u003c\/h2\u003e\n\u003cp\u003eFree standard UK shipping applies on orders over £50. Dispatched from the UK with tracking, typically within 5–7 business days, with delivery taking 7–10 business days. Supplied brand new with the full manufacturer warranty — see our \u003ca href=\"\/warranty\"\u003ewarranty page\u003c\/a\u003e. Unused items in original packaging can be returned within 30 days via \u003ca href=\"\/returns\"\u003ereturns\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWill my hub be too big?\u003c\/h3\u003e\n\u003cp\u003eIt fits hubs up to 40mm. Most road and gravel hubs are well within that; some deep boost mountain hubs are not.\u003c\/p\u003e\n\u003ch3\u003eSpin bike compatible?\u003c\/h3\u003e\n\u003cp\u003eNo. Use the \u003ca href=\"\/product\/wahoo-rpm-cadence-sensor\"\u003ecadence sensor\u003c\/a\u003e instead.\u003c\/p\u003e\n\u003ch3\u003eHow is this different from the RPM speed sensor?\u003c\/h3\u003e\n\u003cp\u003eIt is the newer design, physically a little larger and heavier, with a much longer quoted battery life.\u003c\/p\u003e","brand":"Wahoo","offers":[{"title":"Default Title","offer_id":57053786276164,"sku":"WFTRACKRSPD1","price":29.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0964\/3753\/5044\/files\/wahoo_trackr_speed_wftrackrspd1_v2.2025.jpg?v=1785414385","url":"https:\/\/shop.indoorcyclingsolutions.com\/products\/wahoo-trackr-speed","provider":"Indoor Cycling Solutions","version":"1.0","type":"link"}