Bottom Bracket Options
Brake Calipers Options
Front Derailleur Options
Rear Derailleur Options
STi Levers Options
Cable Kit Options
Shimano Ultegra 6870 Di2 Groupset, new 11 speed Shimano electronic groupset
The very latest Di2 groupset from Shimano, Ultegra 6870 is the Ultegra 6800 with the upgrade to electronic shifting.
STI, ST6870 Di2
Rear Derailleur, RD6870 Di2
Front Derailleur, FD6870 Di2
Cassette, 11 speed
Bottom Bracket, English or Italian
Chainset, choice of crank lengths and chainring sizes
Internal Seatpost Mount For use with the internal junction box and cable routing, the battery mounts inside the seatpost.Please note: Seat post bung not supplied with battery.
Includes battery, charger and all cables and switches required.
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Amazing. Upgraded from 2011 Sram Red and cannot be happier. It may not be as light, but the shifting performance and ease of tuning makes the Ui2 set an absolute joy. Would recommend this groupset to anyone who is looking for the performance of the Di2 system without the price.
Wow, super fast shipping. Original boxes, nice touch!. The group came with everything needed for the installation, I did the installation by myself and everything that could need was in the box. The tool for install the cable was in the shifters box, I had some doubt about if was included. There was also including a set of brake cable with housing. The only thing that came in a bag was the cassette, but came sealed and with the manual, so is ok. Installation was really simple, plug and play in my case; them I download the software from shimano and did some update and personalize the multishifting mode. I spend some time looking for the best deal and Merlin without doubt was the best& Considering; price, shipping time, availability and way of pay. Thanks&
Very nice quality as Ultegra always used to be. Price is high but you are paying for the top of the line technology. Everything works precisely, easy to install. Always a bit tricky to feed the di2 calbles through the frame and handlebars but if you really want it - you can achieve it!
I really wanted to try an electronic groupset and this was the best value. So far I have only been able to use it on a trainer..its winter here... And it has proven to be very easy to use and very precise. I am very pleased with this product.
The rear shifting is incredibly smooth and quick, and the front is damn fast. The ergonomics of the shifters are definitely my favorite between Campy/Sram/Shimano, and the new brakes are very powerful.
Set up is super easy, but you do need to download the dealer manual from shimano tech docs, shimano's supplied instructions are not the detailed fitting instructions that they used to be. Got to admit that during my first ride I was wishing I had gone for the Dura Ace mechanical, but this was soon forgotten after the 2nd ride. Once you train your brain your not on shimano STI mechanical and spend some time training the fingers and mind that the actual brake lever is not gonna move then you are away. Definitely would not go back now for anything. To be able to change both front and rear mech simultaneously, either up or down, whilst out of the saddle, uphill and without even having to consider any grinding is just amazing. Di2 aside, the improvement in the brake calipers is also a large improvement on earlier shimano groups.
Outstanding gruppo. I'll never go back to manual shifting! Kit was complete and installed cleanly (by my LBS). Reliable, precise shifting, even under load. The bee's knees.
Exactly as described. All the functionality of Dura Ace at 2/3rd the cost. Internal battery is a definite improvement over the previous version.
My first foray into Di2. I searched endlessly for the best deal and kept coming back to Merlin. Other retailers were quick to try and dissuade with stories of OEM, bubble wrap and no warranties. One quick call to the team at Merlin put all of those concerns to bed. A super quick delivery and everything arrived in original boxes, full instructions, exactly as I wanted it. It's now fitted to my new bike and I couldn't be happier. The shifting is crisp, effortless and precise. Don't buy Dura-ace. It's about the weight of a Mars Bar heavier and the performance difference is imperceptible. For this price, everyone should be trying Di2. Thanks Merlin.
Fantastic groupset at an amazing price. Shifts smoothly quietly and consistently. New 6870 dual pivot brakes are a great upgrade. Very impressed with my first Di2 purchase!
I recently bought a new frame and put ultegra 6700 on, nice bit of kit, but got talking to a local pro and he told me how good Di2 was. After a couple of months I saw that Merlin had reduced their Di2 group set and took the plunge....... WOW what an amazing bit of kit and at a price no one else can come close to match. If you are sat on the fence then now is the time to jump over and take advantage of the electronic age, at this price and from Merlin to you can't go wrong. TRUST ME
Everything that was needed to build a Di2 bike; just as described. Only suggestion to other builders is to also purchase the package of Shimano "cable ties" for internal builds; the inexpensive ties will help reduce any wires from rattling in the tubes.
I purchased this group recently (April 2014). This is my first electronic group and I am looking forward to many years of dependable operation. I have a 7800 group that is still going strong after 10 years. Installation and setup has been easy. The functioning of the group is flawless. I'd mention one more thing, while it's easy to get overly focused on the electronic aspects of this group, the double-pivot redesign of the brakes also represents a huge upgrade over prior groups. The Shimano 6800 series components are an incredible value.
I took the plunge to electronic, and I'm glad I did. I waited until the new Ultegra 6870 was released because of the improvements over the prior generation. The system is very easy to set up. It's no more complicated than plugging a lamp into the wall. The hardest part of the installation is concealing the wires if you don't have a Di2 specific frame. The shifting is superb. Both in front and in back. Merlin provided great service as well.
Smooth and precise shifting, so glad I waited for the 11 speed with internal battery. Easy to change shift buttons using Shimano Etube through PC if you want. It even shifts perfectly when under load. Riding my other mechanical groupset bike will now be a let down. Yes it's well over double the price of the ultegra mechanical but totally worth it. Plus great service from Merlin! Thanks