Shimano Ultegra R8170 Di2 Disc Groupset – 12 Speed
Included in this groupset…
- Ultegra ST-R8170 Shifter/Brake Levers
- Ultegra BR-R8170 Calipers
- Ultegra RT-CL800 Disc Rotors
- Ultegra FC-R8100 Chainset
- Ultegra RD-R8150 Rear Derailleur
- Ultegra FD-R8150 Front Derailleur
- Ultegra CS-R8101 12s Cassette
- Shimano 12s Chain
- Battery
- SD300 wire set – 1x1000mm, 1x1200mm as standard (other sizes supplied on request)
- Battery Charger
Watch this video for full Groupset kit details!
Wondering why you should buy from us? Watch this video for some insight into Bike Dr!
Upgrading? Why not ‘go all the way’ with our Pimp Your Groupset Kit! – CLICK HERE to check it out!
Want your new groupset fitted? We have you covered! CLICK HERE to see the options!
It’s time to find out what really matters.
The freedom of the open road, crisp mornings and fiery sunsets. Laughter filling the air and then trailing off. Nature, unfolding as you roll. Breathtaking vistas that stop you in your tracks.
Coffee stops and camaraderie. Route prep and weather checks. Rain breaks and sunny bursts. Mad dashes. Racing each other to the top. And then kicking back.Tuning into tranquillity. And shifting into oneness.
The Science of Speed, Shimano’s design philosophy for its latest road groups, is comprised of five elements: a new Di2 platform, a refined interface, the addition of HYPERGLIDE+, a category redefining brake system, and a collection of new wheels. Here’s a quick rundown on how each of them contributes to faster, more efficient road riding.
WIRELESS WHERE IT MATTERS
Shimano’s new shifting systems use wireless technology where it makes sense for both day-to-day life and ultimate performance. Freeing the shift levers from the rear of the bike cleans up the cockpit and simplifies the build process. Meanwhile, connecting the derailleurs to an internal main battery ensures absolute reliability by maintaining stable voltage while also improving Shimano’s already lightning-fast shift speed that has made Di2 a staple of the WorldTour pro peloton.
REFINED INTERFACE
New Di2 dual control levers feature dramatic, all-new ergonomics and act as the wireless command center. Both DURA-ACE and ULTEGRA levers have a longer, slightly curved hood body for a more comfortable and secure grip. Shift buttons are easier to reach and differentiate with extended switches and an increased offset between them. With better access and faster shifting, you’ll always find yourself in the right gear.
HYPERGLIDE+
The backbone of these two new groupsets is the game-changing HYPERGLIDE+ shifting technology. First introduced on Shimano mountain bike groups, this unique chain-and-cassette interface smoothly guides the chain up and down the cassette for fast and precise shifting in both directions, even under extreme pedaling load.
BETTER BRAKING
Both DURA-ACE and ULTEGRA also welcome new braking systems, which are quieter, easier to maintain, and deliver superior control. Improvements start with the addition of Shimano’s proven SERVO WAVE technology. First developed for mountain bikes, SERVO WAVE provides a quick initial bite, then slows down lever force generation for better modulation.
Click HERE to view bottom bracket options.
Ken B –
Excellent service. Groupset is as expected.
Stephen Vickers (verified owner) –
Best price I could find online, arrived quickly, and as described. Only slight critique is the product page does not list which chain you get, which ended up being a 105 level chain rather than Ultegra which you might expect to get with an Ultegra Di2 groupset!
Roger A (verified owner) –
Excellent price and full Ultegra not like some major/famous shop who claims to sell Ultegra groupset only to be told to check the details by friend. What a good friend who save me anger and money.
Mark (verified owner) –
Fantastic product and price, with rapid delivery and great communcation . Full Ultegra group set, including rotors cassette, chain and DI2 cables; some of these components are missing or downgraded elsewhere.
Ben W (verified owner) –
Excellent experience buying new Ultegra Groupset from BikeDr. Michael very happy to discuss my needs at length before purchasing & the kit arrived quickly & well packaged. Highly recommended & will definitely be a returning customer, thank you.
Jason (verified owner) –
Excellent service. Ordered Ultegra Di2 groupset. Michael informed me my Chainset choice gone out of stock. Given a few options but chose to have all other components delivered. All components boxed. Date given of Chainset re-stock to forward on. Excellent communication. Look forward to using The Bike Doctor again.
Mark Hughes (verified owner) –
Great price and service. Excellent communication and speedy delivery. Just got to find the time to complete my project.Thank you.
Matt (verified owner) –
Great price, perfect, retail boxed products and all from a really great shop. Awesome service from Michael who will go the extra mile to make your shopping experience the best. Thank you Michael, highly recommended.
Andy Sykes (verified owner) –
Brilliant service from Bike Doctor. Great price, prompt delivery and good communication on delivery dates. Thanks
Stuart Tarrant (verified owner) –
Brilliant service and advice
Sharif Adama (verified owner) –
Fantastic price and great service! really appreciated my chat with Michael and the advice provided
Dan (verified owner) –
Excellent all round. Best price I could find and a complete groupset unlike other sites selling nearly complete.
Hadn’t heard of the shop before so I called to confirm a few things before purchasing. Communication from Michael was brilliant both on call and via WhatsApp, he couldn’t be more helpful.
Items arrived very well packaged and in good time. All exactly as expected!
Would definitely recommend and I wouldn’t hesitate to purchase from here again.
Thank you!
Will B (verified owner) –
Great price, as described and delivered promptly. Very pleased.
Jason Drake (verified owner) –
Excellent service and a great price. Thank you.
Mark Salthouse (verified owner) –
Great price, complete Ultegra Di2 group set, everything you need for a finished bike build. Arrived promptly, perfect, can’t wait to finish the bike although it won’t be getting any use until we get some sunny weather!
Dvaid (verified owner) –
Excellent service and a great price, arrived quickly and well packaged
jd P (verified owner) –
The price was unbeatable. The component specifications of the Ultegra D12 groupset I ordered were unavailable from every online retailer. Michael has provided a first-class service, the complete groupset was dispatched on the available date. The installation and registration of the components with Shimano E-TUBE have been simple to do.
Ian Sparks (verified owner) –
Excellent service at the best price I could find in the UK. All parts arrive in Ultegra boxes in a good period of time I will be buying all my future groupsets from the bike doctor.
Gavin Page (verified owner) –
Very good value, prompt dispatch – an excellent service.
R Spacey (verified owner) –
Very good service
Tom (verified owner) –
Best price I could find. All Ultegra parts and delivery was nice and quick. I will definitely use again.
Jason Hayes (verified owner) –
Firstly – Really good service from Michael @thebikedoctor -arranged delivery and checked with me it had been delivered. Great price for this Ultegra full group set
Secondly – Ultagra group set was fairly straightforward to install – hardest bit routing the internal brake hoses (as usual). Once installed the set up was straightforward, gear changing looked /felt precise whilst bike was in stand. Repurposed each lever via the Shimano app to suit. Have now ridden bike – gear changes smooth and without any miss-shifts, the Di2 system makes shifting in particular up shifting to larger chainring / sprocket cogs so mush smoother and even on first ride found myself using more gears.
Overall very happy with purchase and again the sales and support from The Bike Doctor – Highly Recommended
Mike Cohen (verified owner) –
My new Strael frameset doesn’t arrive until April so can’t comment on groupset performance as it’s not been fitted yet. What I can comment on is the product package which comprises the full Ultegra groupset including rotors unlike many other sellers. The price is incredible and delivery date was spot on. I’m seriously considering having the groupset fitted for £120 if I find myself pushed for time. Well done and thank you!
Julian Booth (verified owner) –
If you’re looking for an upgrade for your bike don’t look any further. I initially contacted Michael to get some technical advice and was immediately impressed with his excellent product knowledge and helpful manner. I ordered a Shimano 12 speed Di2 groupset, the price was fantastic and all the items arrived well packaged and in the original Shimano boxes. Michael contacted me to explain an issue with delivery of a few days but offered a full refund if I didn’t want to wait, I’m pretty certain you wouldn’t get that experience from any other retailer! I highly recommend the Bike Doctor and will certainly be using him again. Thank you Michael for all your support…