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Common EMI Questions

Shimano FC-R9100 Dura-Ace Hollowtech II Crankset - 2x11 Speed

EMI Icon EMI Options AvailableGet this for as low as Rs. 2313 per month. Know More

DURA-ACE - HOLLOWTECH II - Road Crankset - 2x11-speed

The choice of the world's best climbers, sprinters, and time trialists, the DURA-ACE R9100 crank drops weigh while maximizing power transfer. The new design, and its iconic look, is adapted for race specific disc brake systems while still offering a wide range of gearing and crank arm length options.

  • Optimum power transfer
  • Best balance for lighter weight (-7g) and efficiency
  • New designed crank arm
  • Maintains high rigidity and reduces weight
  • HOLLOWGLIDE
  • 4-arm construction crankset
  • Adapted for race specific disc brake system
  • Shorter length of rear center with O.L.D.135mm
  • Redesign the gear teeth profile to fit wider gear pitch
  • Rider tuned gearing options
  • Iconic design

            hg_ev

            HG-EV

            HG-EV cassette sprocket is for rider-tuned gear combination & cadence management. We provide optimal 11-speed drivetrain gear ratio; you can choice wider and closer gear combination available to match various riding disciplines. HG-EV cassette sprocket is obtained 11-speed gear without compromising the 10-speed durability and improved HYPERGLIDE shifting.


            hollowglide

            HOLLOWGLIDE

            Hollow technology on outer chainring  High rigidity hollow structure cuts down on weight yet maintains strength. Better power transfer and quicker and more precise front shifting

            Hollowglide

            hg_x11

            HG-X11

            Silky driving, accurate 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.

            CN-HG900-11.jpg

            hollowtech

            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.

            Hollow Tech


            hollowtech_2_3

            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.

            Hollow Tech 2-1

            24mm Diameter Axle And Bearings

            Why choose the 24mm axle and bearings for the HOLLOWTECH II crankset?

            The diameter of the Bottom Bracket axle and bearings was of primary importance for the development because the Bottom Bracket axle area is tied to such key elements as stiffness, strength, weight and rotating performance.

            Hollow Tech 2-2

            What’s important is the total balance of crankset

            In addition, taking the crankset as a whole, the total balance of crankarm rigidity, axle stiffness, bearing position and others is essential. Indeed, the crankset is designed by careful consideration of the total balance of those elements to prevent breakage.

            Outboard Bearing

            For most frames with 68mm Bottom Bracket shells, HOLLOWTECH II with 24mm axle can set the bearing position outside of the frame to provide better weight distribution and more stability.

            Hollow Tech 2-3

            Outboard Bearing

            For most frames with 68mm Bottom Bracket shells, HOLLOWTECH II with 24mm axle can set the bearing position outside of the frame to provide better weight distribution and more stability.

            Hollow Tech 2-4

            24mm Diameter Axle And Bearings Provide Optimum Balance For The Crankset

            After studying all these problems thoroughly, we made the decision to adopt the 24mm diameter axle and bearings, which have the optimum balance, for the HOLLOWTECH II crankset.

            In addition, an examination of the total crankset, including the crankarm and gears, proves the optimum balance of rigidity, weight and rotating performance for the ultimate transfer of power to your bike. HOLLOWTECH II is simply the most optimized crankset design on the market.

            Rear speeds 11
            Compatible chain HG-EV 11-speed/HG-X11
            Chainline (mm) 43.5
            P.C.D. left / right (mm) 110
            Gear arms (pcs) 4
            Chainring combination 55-42T
            54-42T
            53-39T 
            52-36T 
            50-34T
            Q-factor 146
            Crank arm length (mm) 160 -
            165 X
            167.5 X
            170 X
            172.5 X
            175 X
            177.5 X
            180 X
            Optional chain guard With chain guard -
            Without chain guard X
            HOLLOWTECH II X
            2-PIECE CRANKSET -
            HOLLOWTECH crank arm X
            OCTALINK -
            HOLLOWGLIDE X
            Compatible BB type Outboard X
            OCTALINK -
            Square -
            Recommended BB Threaded (normal) BB-R9100
            Pressfit SM-BB92-41B
            Axle length of BB-UN / ES (mm) Threaded (normal) -
            Threaded BB shell width (mm) 68 X
            70 X
            Crank arm Material Aluminum
            Finish Anodized
            Crank axle Material Steel
            Finish Plated
            Outer ring Material Aluminum/ CFRP
            Finish Anodized
            Inner ring Material Aluminum
            Finish Anodized
            Outer / middle ring fixing bolt Material Aluminum
            Finish Anodized
            Crank fixing bolt included X
            Average Weight (170mm, w/o BB) 650 g (55-42T)
            642 g (54-42T)
            626 g (53-39T)
            624 g (52-36T)
            614 g (50-34T)
              Buying Guide

              Buying Guide - Handbook

              What to look for and things to consider before you buy

              See the guide

              Distributed by: Shimano India Country Of Origin: Japan