Dura Ace 9170 Di2 Hydraulic Shifters

The 9170 shift levers are designed for Di2 electronic shifting and Hydraulic disc brakes. These shifters are not compatible with rim brakes or mechanical shifting. The form of the lever body is comfortable and ergonomic. The shift paddle engages with a defined click that assures the shift has been made. Similar to previous versions, the upshift and downshift paddles are adjacent to each other.  A Variety of 11-Speed Cassette and Gear Combinations Since the 9170 group is 11-speed, these shifters are designed to work only with an 11-speed cassette and a double ring┬áchainset. Dura Ace 9100 has several wide cassette gear combinations …

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Dura Ace 9150 Di2 Rear Derailleur

The Shimano 9150 Di2 group has been overhauled and improved as it replaces the previous generation 9050 groupset. The Dura Ace 9150 Di2 Rear Derailleur has seen some significant design and performance improvements compared to the 9050 iteration that it replaces. One notable non-difference however is the new 9150 groupset is not 12 speed. Those hoping for a 12 speed Shimano Dura Ace offering will have to wait for the next generation to be released. The launch of the 9150 Di2 groupset from Shimano in 2016 marked the third generation of Dura Ace Di2. First introduced with the launch of …

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Dura Ace 9100 11-Speed Crankset

Weight: 655 grams (36-52, 172.5mm) The outgoing 9000 Dura Ace series has been replaced by the upgraded and revised 9100 series group from Shimano. The 9100 groupset remains as 11 speed despite some hopes that it would be implemented with 12 speed. There are 4 main variations of the 9100 series including mechanical shifters and rim brakes (9100), mechanical shifters and disc brakes (9120), electronic shifting and rim brakes (9150 Di2), and electronic shifting and disc brakes (9170 Di2). Although each of the groupsets will have unique shifters, brakes and derailleurs; one constant is the crankset. Since the 9100 crankset …

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Shimano Dura Ace 9150 Hydraulic Brakes

The Dura Ace hydraulic disc brake are as advertised. They have built on past success and implemented a near perfect solution for the road bike genre. The 9150 calipers have flat mount form which reduces weight and allows for a more inconspicuous fit to the brake mount. Braking is smooth with plenty of modulation. The rear disc rotor is 140mm and the option for a 140mm or 160mm exists for the front brake. For increased stopping power it is advised to go with the larger rotor on the front. This tends to balance well with the 140mm rear rotor.   …

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