Shimano Dura Ace FC-R8100-P Powermeter Crankset - 2x12-speed The Dura-Ace FC-R8100-P crank not only converts your pedal power into propulsion, with its high rigidity it also ensures extremely fast and precise shifting. The high shifting precision is supported by the optimized chain ring design. To keep the weight low, the Japanese continue to rely on the proven Hollowtech II crank arm design. A large selection of crank arm lengths and chainring options ensures the availability of the right crank for every type of rider and every terrain. The new integrated power meter processes the data with outstanding accuracy. With one sensor each on the left and right crank arm, you can, in addition to the performance evaluation, also detect muscular imbalances between the legs. The waterproof construction provides reliable and accurate data in all conditions. This is also ensured by the active temperature compensation of the software. A manual zero point calibration can be carried out in no time at all using a switch on the transmitter. Strain gauges developed by Shimano are used for the greatest possible accuracy. The internal lithium-ion battery supplies the power meter with electricity for up to 300 operating hours and is charged via an integrated port without being removed. Powermeter specifications: accuracy: ±2.0 % force measurement: left + right, 24 strain sensors cadence measurement: via magnet connectivity: Bluetooth / ANT+ ports: 1x EW-EC300 battery type: Li-Ion battery life: approx. 300 hours Hollowtech II The guiding principle of Shimano's Hollowtech II technology is the perfect balance between stiffness, stability, weight and rotational efficiency. The goal was to produce a crank that minimises the effort required for the drive and enables more efficient power transmission. An exclusive forging process allows the production of extremely light crank arms that nevertheless guarantee maximum stiffness. The fixed connection of the right arm to the axle of the bottom bracket and its external bearing also serve an optimum relationship between stiffness and low weight. Material:crank arms, inner chainring: aluminium (anodized) outer chainring: aluminium (anodized), carbon fiber reinforced polymer (CFRP) 4axle: steel (plated) Compatibility:front derailleur: FD-R9250, FD-R8150 bottom bracket: BB-R9100 (thread type), SM-BB92-41B (Press Fit) chain: CN-M9100, CN-M8100, CN-M7100, CN-M6100 Weight (170 mm, manufacturer's specs): 758g (50-34 teeth) 769g (52-36 teeth) Scope of supply: crankset with integrated Powermeter (without bottom bracket and charging cable) Order here > https://www.icebikeheaven.com/shimano-ultegra-fc-r8100-p-dual-side-power-meter-crankset-power-crank-12-speeds-12s-160mm-165mm-with-chainring?search=SHIMANO%20ULTEGRA%20FC-R8100 Deliver to Malaysia, SG, Brunei, Worldwide Accept Ewallet Boost TouchnGo Etc.. & Credit card How to Order 1.Product Option: 2.Quantity: 3.Color: 4.Name: 5.Address: 6.Contact number: Send to ☎FB http://m.me/icebikeheaven ☎ http://www.wasap.my/60174204398 Sales, Order, Customer service ☎ http://www.wasap.my/60195272398 After sales/ Warranty FOLLOW US ✔ https://www.ebay.com/str/icebikeheaven37 ✔ https://shopee.com.my/icebikeheaven?tab=shop ✔ http://www.lazada.com.my/ice-bike-heaven/ ✔ https://fb.me/icebikeheaven ✔ https://www.instagram.com/icebikeheaven37/ Buy from Us! 🚴🏻💯% POSITIVE FEEDBACK 🚴🏻💯% Warranty & After Sale Service 🚴🏻💯% PARCEL ARRIVAL GUARANTEED 🚴🏻💯% ❌hidden charges 🚴🏻 7️⃣ days size exchange 🆗 🚴🏻 7️⃣ days 100% 💲💲 Guarantee back ☄ Prompt response 🥇♞ SSM Registered company- Icebikeheaven 🥇 8 Years of experience