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Shimano Ultegra Power Meter Crankset 170mm 52-36t

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Shimano Ultegra Power Meter Crankset 170mm 52-36t


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SHIMANO Ultegra crank 2-speed FC-R8100-P | Power meter

The Dura-Ace FC-R8100-P crank not only converts your pedaling power into propulsion, with its high rigidity it also ensures extremely fast and precise switching behavior. The high switching precision is supported by the optimized chainring design. In order to keep the weight low, the Japanese continue to rely on the proven Hollowtech II construction of the crank arms. 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 a sensor on each of the left and right crank arms, you can identify muscular imbalances between the legs in addition to performance evaluation. The waterproof construction provides reliable and precise data under all conditions. This is also ensured by the software’s active temperature compensation. A manual zero point calibration can be carried out in next to no time 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 power for up to 300 operating hours and is charged via an integrated port without removing it.

Technical specifications:

intended use : racing bike
Power measurement: on both sides (1x sensor on the left crank arm and 1x sensor on the right crank arm)
Power range: 0 to 2500 watts
Accuracy: <1.5%
Transmission protocol: ANT + | Bluetooth
Battery: Lithium-ion battery (rechargeable with EW-EC300 charging cable)
Battery life: up to 300 hours
Waterproof: yes
Material crank arms: aluminum
Material spider: aluminum
Material crankshaft: steel
Crankshaft diameter: 24 mm
Crank lengths: 170; 172.5 or 175
bolt circle diameter diameter: 110 mm
Spider: 4-arm, asymmetrical
Chainring gradation: 50-34 or 52-36 teeth
Chainring Bolts: Aluminum
chain line : 44.5 mm
Q factor: 148 mm
Compatibility bottom bracket: BSA, ITA, BB30, BB92 etc. (optional, not included)
Compatibility chains: Shimano CN-M9100 12-speed , CN-M8100 12-speed
Driver weight: n / a
Finish: matte
Color gray

Weight according to the manufacturer: 758g (50-34 teeth), 769g (52-36 teeth)
Weight weighed: 776g (50-34 teeth, 172,5 mm)
Scope of delivery:

1x Ultegra FC-R8100-P crankset including power meter and chainrings without bottom bracket
1x charging cable
1x SHIMANO crank tool TL-FC40 for FC-R9100P


Weight 5.00 kg
Dimensions 25 × 25 × 20 cm

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