Shimano Ultegra Fc-R8100-P Powermeter crankset
An integral part of Shimano's new 12-speed road lineup, the FC-R8100 crank builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12-speed shifting, the ULTEGRA crank is now offered in lengths from 160 to 175 mm, bringing performance and improved fit for smaller riders, triathletes, and riders with specific biomechanical requirements.
Features
- Integrated, waterproof and rechargeable lithium-ion battery
- Up to 300+ hours of battery life * Depending on ANT+/Bluetooth®L settings
- Accurate data collection
- ±2.0% margin of error in effort measurement over the entire calibration range
- Unique effort meter
- Quick start
- Simple zero calibration with switch on transmitter
- Active temperature compensation
- Software automatically compensates for temperature variations
- Providing new force vector data makes it the optimal training tool for analysing and improving pedalling efficiency
- With SHIMANO CONNECT Lab, you can analyse your training and power data
- Optimum balance between rigidity, strength, weight and rotation efficiency
- HOLLOWGLIDE construction reduces weight but maintains strength, for improved power transfer and faster, more precise chainring
- Sprockets: 52 / 36
- Crank lengths: 170 / 172.5 / 175 mm
Tech spec
Hollowtech Crank Arm
Hollow forged crank arms. A lightweight crankset not only reduces the bike’s weight, but decreases rotating mass to aid in acceleration. The challenge is to reduce the weight of the crank without reducing its strength and rigidity. Shimano’s advanced forging technology has solved the problem through the Hollowtech crank. Just like high quality frame tubing, a hollow crank arm can provide amazing strength and rigidity at very lightweight.
Hollowtech II
Providing the best balance of stiffness, strength, weight and rotating performance The concept of Hollowtech II technology is focused on producing a superior crankset which will maximize a rider’s power transfer. The rigidity of the crankset ensures pedaling efficiency while its weight, a key element of the crankset, you want light, aids in cycling longer distances over which the rider needs to pedal more. Naturally, Shimano strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. Hollowtech technology is an ultra-lightweight hollow crankarm created by Shimano with the company’s own proprietary forging technology that also maintains rigidity. The addition of Hollowtech II technology integrates the bottom bracket axle with the right crankarm for more stiffness and a weight savings to achieve a high-dimensional balance. Its outboard bottom bracket bearing system provides better weight distribution and more pedaling stability, allowing for more efficient power transfer. The Hollowtech II crankset has been developed by pursuing the optimum balance of stiffness & rotating performance in a lightweight and beautiful crankset design. High Precision Sealing Moreover, Hollowtech II crankset has a high-precision sealing in the bearing area to increase durability maintaining the excellent rotating performance for long periods.
Hollowglide
High rigidity hollow structure cuts down on weight yet maintains strength. Better power transfer and quicker and more precise front shifting.