Group SHIMANO 105 Di2 R7170 2x12V 34/50 11-34 Teeth 172.5mm *

Visit SHIMANO 105 Di2 R7170 2x12V groupset with 11/34-tooth cassette, 172.5mm crank length and 34/50-tooth compact crankset revolutionizes gear shifting for road cyclists, guaranteeing smooth, effortless performance. Thanks to Di2 technology, every gear change is instantaneous and precise, even in the most demanding conditions. The compact, ergonomic shifter provides optimal control in all circumstances, offering enhanced comfort and perfect control, whatever the riding position.

The system offers a considerable advantage by conserving the rider's energy, allowing him or her to concentrate on the pleasure of the ride and the effort required, without worrying about transmission failures. Gear changes are made automatically by means of a switch, eliminating the shifter travel required for mechanical systems. This feature is particularly useful for adjusting gears to changing road conditions.

The less-than-1:1 ratio of the SHIMANO 105 12-speed transmission makes it possible to take on more ambitious uphill challenges with greater effort control. The synchronized front derailleur ensures constant pedaling and smooth gear changes, while the E-TUBE PROJECT application allows customized tuning. The new SHIMANO 105 braking system, inspired by the pros, makes high-performance braking accessible to all cyclists.

Ref: 9867953537373