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Priekšējie zobratu bloks Shimano ULTEGRA FC-R8000 172.5MM 2x11-speed

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Preces ID: IFCR8000DX26
Cena: €192,00 192 €253,00

Availability: Ir noliktavā

Cena: €192,00 192 €253,00
Skaits:
High end Shimano ULTEGRA FC-R8000 HOLLOWTECH II Crankset for 11-speed drivetrain

Bottom bracket is not included!

Minimal weight without sacrificing stiffness
Wider gear pitch increases clearance between chain and leading teeth, providing compatibility with frames of O.L.D. 135 mm and 410 mm chainstay length
Lightweight crankarm design optimized for power-transfer efficiency
Rider-tuned gear performance through various gear combinations
Redesigned FC for greater frame compatibility

Chain ring combination (OPTIONAL): 50x34T OR 52x36T OR 53x39T OR 46X36T

Weight (170mm):
690 g (53-39T)
681 g (52-36T)
674 g (50-34T)
668 g (46-36T)

HOLLOWTECH II
HOLLOWGLIDE (only on 46x36T)
Compatible chain: HG-EV 11-speed/HG-X11
Crank Arm Length: 172.5 mm
Includes crank fixing bolt
Gear arms 4
BCD (Bolt circle diameter): 110 mm
Threaded BB Shell Width: 68mm, 70mm
Q-factor: 146 mm
Aluminum/ CFRP crank arm
Aluminium/ CFRP outer chain ring
Aluminium middle and inner ring

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 (sold separately) 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. 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 (only on 46x36T): High rigidity hollow structure cuts down on weight yet maintains strength. Better power transfer and quicker and more precise front shifting
HG-X11 - directional chain realize more smoother shifts and greater overall performance. Right and left sides are optimized for front and rear shifting respectively.

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