Shimano Ultegra R8170 Di2 Disc Groupset

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5/ 5

Top band!

The aesthetics of this group are extremely well done. The materials used are of the highest quality. Assembly is very easy, even for a novice. The E-tube application makes it easy to set the gears. As for operation, it's beyond reproach and, above all, superbly quiet. Shifting gears is instantaneous. It's like night and day compared to the 105 DI2! Braking is very effective, with a precise feel that's easy to control. And what can I say about the price! The best on the market. Thank you MANTEL !!!!!!!