{"product_id":"rotor-road-chainring-4-arm-q-ring-110-mm-bcd-11-12-speed","title":"Rotor Road Chainring, 4-arm, Q-ring, 110 mm BCD 11-\/12-speed","description":"\u003cdiv class=\"product-description controlled-block\"\u003e\n\u003ch2 class=\"headline-lg mb-6\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv class=\"site-text\"\u003e\n\u003ch2\u003eRotor Road Chainring, 4-arm, Q-ring, 110 mm bolt circle diameter for Rotor and Shimano cranks\u003c\/h2\u003e\nThis oval road bike chainring from Rotor has four arms and a bolt circle diameter of 110 mm. Its special shape promotes a smooth and efficient pedal stroke, so your muscles tire less quickly and your overall performance improves. The aluminium CNC-machined chainring is suitable for Rotor cranks with the corresponding Spider, for INSpider power meter cranks as well as for newer Shimano Dura-Ace and Ultegra cranks including the power meter models.\u003cbr\u003e\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\n\u003cdl\u003e\n\u003cdt\u003eApplication:\u003c\/dt\u003e\n\u003cdd\u003eRoad\u003c\/dd\u003e\n\u003cdt\u003eMount:\u003c\/dt\u003e\n\u003cdd\u003e110 mm bolt circle diameter, 4-arm asymmetrical\u003c\/dd\u003e\n\u003cdt\u003eTeeth:\u003c\/dt\u003e\n\u003cdd\u003e34 t, 36 t, 39 t, 42 t, 44 t, 46 t, 50 t, 52 t, 53 t, 54 t, 55 t, 56 t\u003c\/dd\u003e\n\u003cdt\u003eGearing:\u003c\/dt\u003e\n\u003cdd\u003e2x11-speed, 2x12-speed\u003c\/dd\u003e\n\u003cdt\u003eType:\u003c\/dt\u003e\n\u003cdd\u003eOval 12.5%\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch3\u003eTechnical Information:\u003c\/h3\u003e\n\u003cdl\u003e\n\u003cdt\u003eChainline:\u003c\/dt\u003e\n\u003cdd\u003e43.9 mm (Rotor standard axis), 46.4 mm (Rotor offset axis)\u003c\/dd\u003e\n\u003cdt\u003eMaterial:\u003c\/dt\u003e\n\u003cdd\u003ealuminium (7075-T6)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch3\u003eCompatibility:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eall Rotor cranks with 110x4 spider\u003c\/li\u003e\n\u003cli\u003eall Rotor cranks with INSpider power meter\u003c\/li\u003e\n\u003cli\u003eShimano Dura-Ace FC-R9200, FC-R9200-P, FC-R9100, FC-R9100-P\u003c\/li\u003e\n\u003cli\u003eShimano Ultegra FC-R8100, FC-R8100-P, FC-R8000\u003c\/li\u003e\n\u003cli\u003eShimano 2x12-speed and 2x11-speed groupsets\u003c\/li\u003e\n\u003cli\u003eSRAM 2x11-speed groupsets\u003c\/li\u003e\n\u003cli\u003e12- and 11-speed chains\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNote from the manufacturer:\u003c\/h3\u003e\nIn some cases, a 0.5 mm washer must be fitted on the right side of the crank axle to ensure full compatibility between Shimano Dura-Ace FC-R9200 or Ultegra FC-R8100 cranks, Shimano 2x12-speed groupsets and Rotor chainrings.\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eoval shape for more pedalling efficiency\u003c\/li\u003e\n\u003cli\u003efast, precise shifting\u003c\/li\u003e\n\u003cli\u003elightweight\u003c\/li\u003e\n\u003cli\u003e34 to 44 teeth for the inner chainring, 46 to 56 teeth for the outer chainring\u003c\/li\u003e\n\u003cli\u003e100% CNC milled\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnology:\u003c\/h3\u003e\n\u003cb\u003eOval Chainrings\u003c\/b\u003e\u003cbr\u003eBio-mechanical studies show that Q-Rings provide better performance than conventional chainrings. The effect is achieved by making the largest muscle groups in the legs more effective and eliminating the dead centre when pedalling. This results in a much smoother and rounder ride overall, with less muscle fatigue. The biggest advantages of using Q-Rings are the significant improvement in general fitness due to improved pedalling, greater sprinting ability due to the elimination of dead centre, slower muscle fatigue, and ultimately an increase in cardiovascular endurance for athletes.\u003cbr\u003eA submaximal test followed by a time trial over a distance of 1 km proved that the Q-rings reduce heart rate and oxygen consumption while improving performance by 1.6 seconds compared to round chainrings.\u003cbr\u003e\n\u003ch3\u003eManufacturer Numbers:\u003c\/h3\u003e\n\u003cdl\u003e\n\u003cdt\u003e34 tooth:\u003c\/dt\u003e\n\u003cdd\u003eC01-048-27010-0\u003c\/dd\u003e\n\u003cdt\u003e36 tooth:\u003c\/dt\u003e\n\u003cdd\u003eC01-048-25010-0\u003c\/dd\u003e\n\u003cdt\u003e39 tooth:\u003c\/dt\u003e\n\u003cdd\u003eC01-048-22010-0\u003c\/dd\u003e\n\u003cdt\u003e42 tooth:\u003c\/dt\u003e\n\u003cdd\u003eC01-048-19010-0\u003c\/dd\u003e\n\u003cdt\u003e44 tooth:\u003c\/dt\u003e\n\u003cdd\u003eC01-048-17010-0\u003c\/dd\u003e\n\u003cdt\u003e46 tooth:\u003c\/dt\u003e\n\u003cdd\u003eC01-048-15010-0\u003c\/dd\u003e\n\u003cdt\u003e50 tooth:\u003c\/dt\u003e\n\u003cdd\u003eC01-048-11010-0\u003c\/dd\u003e\n\u003cdt\u003e52 tooth:\u003c\/dt\u003e\n\u003cdd\u003eC01-048-09010-0\u003c\/dd\u003e\n\u003cdt\u003e53 tooth:\u003c\/dt\u003e\n\u003cdd\u003eC01-048-08010-0\u003c\/dd\u003e\n\u003cdt\u003e54 tooth:\u003c\/dt\u003e\n\u003cdd\u003eC01-048-07010-0\u003c\/dd\u003e\n\u003cdt\u003e55 tooth:\u003c\/dt\u003e\n\u003cdd\u003eC01-048-06010-0\u003c\/dd\u003e\n\u003cdt\u003e56 tooth:\u003c\/dt\u003e\n\u003cdd\u003eC01-048-05010-0\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch3\u003eContents:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Rotor Road chainring, 4-arm, Q-ring, 110 mm bolt circle diameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"headline-lowercase-lg\"\u003eWeight:\u003c\/h3\u003e\n\u003cdiv class=\"site-text\"\u003e\n\u003cul\u003e\n\u003cli\u003eblack | 34 : 32 g\u003c\/li\u003e\n\u003cli\u003eblack | 50 : 124 g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg style=\"font-size: 0.875rem;\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Rotor","offers":[{"title":"46T(34)","offer_id":50347870028022,"sku":"RTQRL112","price":272.0,"currency_code":"HKD","in_stock":true},{"title":"50T(34)","offer_id":50347870060790,"sku":"RTQRL120","price":272.0,"currency_code":"HKD","in_stock":true},{"title":"52T(36)","offer_id":50347870093558,"sku":"RTQRL110","price":272.0,"currency_code":"HKD","in_stock":true},{"title":"53T(39)","offer_id":50347870126326,"sku":"RTQRL109","price":272.0,"currency_code":"HKD","in_stock":true},{"title":"54T(39)","offer_id":50347898831094,"sku":"RTQRL108","price":308.0,"currency_code":"HKD","in_stock":true},{"title":"34T(50)","offer_id":50347917410550,"sku":"RTQRL117","price":136.0,"currency_code":"HKD","in_stock":true},{"title":"36T (52\u002646)","offer_id":50347917443318,"sku":"RTQRL116","price":136.0,"currency_code":"HKD","in_stock":true},{"title":"39T (53\u002654)","offer_id":50347917476086,"sku":"RTQRL115","price":136.0,"currency_code":"HKD","in_stock":true},{"title":"42T (54\u002655)","offer_id":50347917508854,"sku":"RTQRL114","price":156.0,"currency_code":"HKD","in_stock":true},{"title":"44T (56\u002658)","offer_id":50347917541622,"sku":"RTQRL113","price":156.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0088\/4051\/1550\/files\/61fa395d43589445.jpg?v=1775550387","url":"https:\/\/ferrobike.hk\/products\/rotor-road-chainring-4-arm-q-ring-110-mm-bcd-11-12-speed","provider":"Ferrobike HK","version":"1.0","type":"link"}