{"product_id":"stages-power-r-shimano-ultegra-r8100","title":"Stages Power R - Shimano Ultegra R8100","description":"\u003cp\u003eThe Stages Power L for Shimano Ultegra R8100 crank is built onto a non-drive side Shimano Ultegra R8100 crank arm and is compatible with Shimano Hollowtech II cranks.\u003c\/p\u003e \u003cp\u003eStages Power has carried riders to victory in eight Grand Tours, 18 World Championships and even the Olympics. If you believe that racing provides the world's best product proving ground, then Stages Power has been proven as the world's best power meter.\u003c\/p\u003e \u003cp\u003eConsistency of measurement is the most important feature of a power meter. Stages Power was the first to make active temperature compensation (ATC) an automatic process, ensuring accurate readings, no matter what the environmental conditions. ATC is the key reason a rider can trust data from Stages Power in all conditions.\u003c\/p\u003e \u003ch4\u003eIndividual meter calibration for the most accurate results\u003c\/h4\u003e \u003cp\u003eEach Stages power meter is calibrated individually to ensure a +\/- 1.5% accuracy level. Individual calibration means that you can trust the bilateral data produced by their system, as it's a real measurement and not an estimation.\u003c\/p\u003e \u003ch4\u003eStages Power R drive-side meter for added compatibility or upgrading an existing Stages Power L meter to Stages Power LR\u003c\/h4\u003e \u003cp\u003eWhile not widespread, there are some key bicycle models that are not compatible with the non-drive crank arm based Stages power meter, because of interference with the power meter housing – for example, Cervelo's P5 and many bikes with chainstay mounted brake callipers. Stages Power R offers compatibility with these models as well as the ability to upgrade existing Stages Power L power meters to Stages Power LR (dual) meter systems.\u003c\/p\u003e \u003ch4\u003eSpecifications\u003c\/h4\u003e \u003cul\u003e \u003cli\u003eAccuracy of +\/- 1,5% accurate in all conditions\u003c\/li\u003e \u003cli\u003ePower meter housing: low profile design, with robust door interface. Tool-free battery replacement on the left arm\u003c\/li\u003e \u003cli\u003eBattery life: 200+ hours (coin cell CR2032) when used as a single sided Stages Power L\u003c\/li\u003e \u003cli\u003ePower range (watts): 0-2500\u003c\/li\u003e \u003cli\u003eCadence range (rpm): 20-220\u003c\/li\u003e \u003cli\u003eWater resistance rating: IPX7\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eOptions\u003c\/h4\u003e \u003cul\u003e \u003cli\u003eStages Power L Crank length 160mm, 165mm, 170mm, 172.5mm, 175mm\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eCompatibility\u003c\/h4\u003e \u003cul\u003e \u003cli\u003eStages Power L compatible with all Shimano Hollowtech II road drive side crank arms\u003c\/li\u003e \u003cli\u003eSoftware compatibility: Stages Link, TrainingPeaks, Strava, Garmin Training Center and others\u003c\/li\u003e \u003cli\u003eDevice compatibility: ANT+, Bluetooth Smart Ready\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eIn the box\u003c\/h4\u003e \u003cul\u003e \u003cli\u003eNon-drive side power meter\u003c\/li\u003e \u003cli\u003eHigh-quality CR2032 coin cell battery\u003c\/li\u003e \u003cli\u003eLifetime access to Stages Link for power meter management and firmware upgrades\u003c\/li\u003e \u003cli\u003e2 months’ free access to Stages Link's premium training and coaching features\u003c\/li\u003e \u003cli\u003eProduct Identification Card with serial number and ANT+ ID Number\u003c\/li\u003e \u003cli\u003eUser guide\u003c\/li\u003e \u003c\/ul\u003e","brand":"Stages","offers":[{"title":"170mm 50\/34","offer_id":45164226773149,"sku":"STU81RC4","price":520.0,"currency_code":"GBP","in_stock":true},{"title":"170mm 52\/36","offer_id":45164227100829,"sku":"STU81RC6","price":498.77,"currency_code":"GBP","in_stock":true},{"title":"175mm 52\/36","offer_id":45164227133597,"sku":"STU81RE6","price":512.47,"currency_code":"GBP","in_stock":true},{"title":"172.5mm 52\/36","offer_id":45164227231901,"sku":"STU81RD6","price":512.47,"currency_code":"GBP","in_stock":true},{"title":"175mm 50\/34","offer_id":45164227297437,"sku":"STU81RE4","price":512.47,"currency_code":"GBP","in_stock":true},{"title":"172.5mm 50\/34","offer_id":45164227330205,"sku":"STU81RD4","price":512.47,"currency_code":"GBP","in_stock":true},{"title":"160mm 52\/36","offer_id":45164227788957,"sku":"STU81RZ6","price":525.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0021\/9434\/1977\/files\/stages_-_placeholder_bfb560ee-1f71-4ccc-9180-0306089208fe.jpg?v=1714053400","url":"https:\/\/www.bikeparts.co.uk\/products\/stages-power-r-shimano-ultegra-r8100","provider":"BikeParts.co.uk","version":"1.0","type":"link"}