{"product_id":"rotor-2inpower-crank-arms-for-direct-mount-chainrings","title":"Rotor 2INPower Crank Arms for Direct Mount Chainrings","description":"\u003cp\u003eRotor’s 2INPower  Crank for Direct Mount Chainrings  power  meter is light and accurate thanks to placement of four strain gauges in the  thru-axle and two in the right crankarm. This allows it to measure both left  and right power as well as provide incredibly precise metrics by which you can  analyze and perfect your pedal stroke. Accuracy is a clamed 1-1.5%.\u003c\/p\u003e\n\u003cp\u003eLike all good power  systems these days, the 2INPower sends out both ANT+ and Bluetooth Smart (BTLE)  signals simultaneously. These can be picked up by ANT+ head units, Bluetooth  head units, smartphones, tablets, and computers (check yours for specific app  and program compatibility). Thanks to the Bluetooth signal, you can utilize  Rotor’s Torque 360 metrics for dialing in your pedal stroke as well as their  OCA software for determining what, position your Rotor Oval chainring should  sit out for optimal power transfer. Of course, if you’re fixed on round, you  don’t need to utilize this program. \u003c\/p\u003e\n\u003cp\u003eRotor’s hollow,  oversized thru-axle means  you can use  this crank with Rotor’s Universal Bottom Bracket (UBB) concept, meaning it is  compatible with: English-threaded, Italian-threaded, BB30, PF30, PF30 BBright,  and BB386 bottom bracket standards. It also means that Rotor has the space to  install circuitry, strain gauges, and a battery inside. Same goes for the  hollow, Trinity-drilled, aluminum crankarms, which house more strain gauges.\u003c\/p\u003e\n\u003cp\u003eThe cranks are light  and stiff, and come with a lock ring, but not chainrings. They also come with  the requisite lock ring tool. You’ll need to choose whether you go with Rotor’s  one-piece Direct Mount (DM) Round or Oval chainrings or Aldhu four-arm spider. In  all cases, the spider is splined and slides onto the inside of the right  crankarm from the left side and is secured to the splines with the lock ring. This  is light, stiff, and very effective. \u003c\/p\u003e\n\u003cp\u003eThe axle-mounted  Lithium-Ion battery comes with a charge on it. You might want to fully charge  before riding. It should last about 250 hours on a charge. The charge cable is  included, is four feet long and works very much like a computer charging cable  with a magnetic mount on the crank side and a USB connector on the power side. \u003c\/p\u003e\n\u003cp\u003eThe crank comes in  sizes as short as 165mm and as long as 175mm. The Q-Factor is 147.5mm. The  chain line is 43.5mm. It has a waterproof rating of IPX7.\u003c\/p\u003e\n\u003cp\u003eThe crankset weighs  596g without rings. 775g with a one-piece chainring set. \u003c\/p\u003e","brand":"Rotor","offers":[{"title":"175mm","offer_id":43517657415724,"sku":"C13-031-21010-001","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/7684\/9196\/files\/38795.jpg?v=1765915977","url":"https:\/\/ricycles.com\/products\/rotor-2inpower-crank-arms-for-direct-mount-chainrings","provider":"RA Cycles","version":"1.0","type":"link"}