Reviews over the

Shimano Ultegra R8170 Di2 Disc

I recently ordered a Dura-Ace groupset, then an Ultegra groupset from the Mantel site, and frankly I'm very happy with it. Everything arrived well packaged, complete with all the parts for the groupset. What's more, I was pleasantly surprised to find that the bottom brackets were included! Delivery was ultra-fast: in two or three days, the parcel was already at home. Honestly, nothing to complain about. I'm really happy with Mantel, and I won't be ordering from anywhere else, that's for sure!

Good product, easy to assemble. Complicated to operate (pairing of components and programming with the laptop).

Super price / performance ratio. Precise and fast gear changes. Simple assembly

This group including the hoods is really beautifully designed and the assembly was very easy according to the workshop! It runs smoothly and is also surprisingly quiet. The gears shift immediately and precisely, and the brakes work great!

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Shimano Ultegra shift brake levers are much more ergonomic than their SRAM counterparts (with the exception of the new Red levers). The increased disc brake pad spacing also prevents the grinding noises that sometimes occur. Installation and teach-in is simple and can also be carried out by non-specialist personnel. Only when bleeding the brakes should you have some experience, or read the instructions very carefully or watch suitable tutorials.

The cnd arrived very quickly

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 !!!!!!!

I recommend this site for all types of parts.

Electric shifting can't really be described it has to be experienced - guaranteed not to disappoint!!!

Fast delivery , no missing parts , everything was as I've expected.

Unit delivered as agreed with all components.

Exceeds my expectations coming from mechanical Ultegra. Night and day. Lovely gear change and so accurate and fast.

Pros & Cons

Easy to assemble and adjust. Very good product.

Super, complete groupset with even a bottom bracket that's not marked in the pack.