Shimano 105 R7100 Di2 Groupset

Shimano 105 Di2 R7100 12-speed Groupset The new Shimano 105 brings Di2 shifting to a new set of riders. For those who have only experienced mechanical shifting and ergonomics, Shimano 105 Di2 represents a transformation of the road cycling experience. A Battery For The Ages The ...Shimano 105 Di2 R7100 12-speed Groupset The new Shimano 105 brings Di2 shifting to a new set of riders.

For those who have only experienced mechanical shifting and ergonomics, Shimano 105 Di2 represents a transformation of the road cycling experience. A Battery For The Ages The introduction of wireless shifting might leave you feeling concerned you'll be forever charging batteries and living in perpetual fear you'll be stranded in you biggest gear miles from anywhere But with 105 Di2, power is supplied via two CR1632 coin cell batteries in the shifters, which should provide over three years of life With such a range, even the heaviest of users shouldn't find themselves in a constant state of charging and re-charging batteries Semi-wireless Setup 105 R7150 uses the same semi-wireless, 12-speed shifting setup as the top-tier models The proprietary semi-wireless system means there is no longer any need from wires to the shifters to the derailleurs Since there's no need for wires and cables, the cockpit of a bike set up with 105 Di2 is cleaner and less cluttered than ever Shift into Gear With the change to electronic gearing, one of the most significant changes to the groupset is in the shifters themselves; the all-new 105 ST-R7170 levers now operate in much the same way as the top-of-the-line shifters Shifting gear couldn't be simpler: click a button on the shifter and almost instantly you'll hear the derailleur whir into life Drawing on Shimano's years of experience in electronic shifting, you can expect smooth gear changes at the touch of a button Without the need to accommodate levers, wires, or ports, the shape of the R7150's levers has been brought more in line with the sleeker Ultegra and Dura-Ace shifters The new, slimmed down, STI levers are also more ergonomically shaped, thanks to the raised hood peak and offer more opportunity to refine the reach Brains of the Operation The rear derailleur is an integrated, 12-speed wireless unit, which will comfortably accommodate an 11-36T cassette Such a wide range of gears is perfect for those big climbing days, without spinning out when the road tips back down or when you're racing along in fast bunch rides The rear mech uses Shimano's Shadow technology is incorporated to reduce the risk of the derailleur hitting the chainstay in rough-riding conditions, and to provide smoother, quieter performance The 105 Di2 front derailleur offers the smooth shifting you'd expect from the Japanese component makers It can be programmed to be manual, or full or semi-synchronised, accommodating a 50T or 52T chainring Crank It Up Shimano continue to deploy their famed Hollowtech II technology in the R7100 crankset, which is now 2x12-speed The result is a sturdy crankset, that is stiff and relatively light Incorporated also is Hollowglide technology, which offers more precise and efficient power transfer than ever before Shimano have been able to reduce the weight of the crankset but maintain stiffness, strength, and performance Stopping Power Shimano have further improved braking performance. The lever-action required for braking is now lighter and smoother, offering a greater area for braking control For 105 Di2, the clearance for pads has been increased by 10%, reducing braking noise.

Overall, rain or shine, you can be assured of high-performance stopping power Box Contents 105 ST-R7170 hydraulic disc brake dual control levers 105 FC-R7100 HollowTech II crankset 172.5mm 50/34t 105 CS-R7100-12 cassette 11-34t 105 BR-R7170 hydraulic disc brake calipers (rotors available aftermarket) 105 FD-R7150 front derailleur for Di2 105 RD-R7150 rear derailleur for Di2 CN-M7100 SLX/Road chain with quick link, 12-speed, 126L SM-RT64 rotors BT-DN300 Di2 Battery EW-EC300 charging cable, 1700mm