Shimano Ultegra 12s Di2 Disc Brake Power Meter Groupset

SHIMANO ULTEGRA R8170 DI2 DISC POWER METER GROUPSET

With technology trickling down from flagship Dura-Ace, Shimano's Ultegra R8170 Di2 Disc Groupset is better than it has ever been before. It perfectly balances performance with value, and the components are slick, reliable, and only create a minimal weight penalty compared to Dura-Ace.

Shifting is flawless, and faster than previous iterations, while operating almost silently. This is thanks to Hyperglide+ tooth profiles, meaning that the chainrings and cassette have an improved connection with the chain, essentially improving shifting under load, across the cassette. Adding in a 12th sprocket, progression through the gears is smoother too.

Braking is equally impressive, and redesigned calipers provide more clearance between rotor and pad, reducing rubbing and scraping noises frequently heard in wet or gritty conditions. Servo Wave levers, which have been redesigned for improved ergonomics, speed up the initial travel so pad and rotor meet sooner, creating a more progressive feel.

Aesthetics are sleek, with the semi-wireless system eliminating wires from shifters to derailleurs. The battery remains mounted in the seatpost or seat tube, and this is wired to the derailleurs, while the charge port is now incorporated into the rear derailleur, so there is no junction box required. CR1632 coin cell batteries in the shifters provide 1.5 to 2 years of life and easy access to the port on the rear mech makes charging the rest of the system easy.

There are plenty of configurations to choose from, including various crank lengths and both mid-compact and compact chainrings, making this groupset a fantastic option for the majority of riders looking to upgrade their bike to an electronic system. 

You can also pair the system with most third-party cycling computers, including Garmin and Wahoo, which allow you to monitor gear selection or battery status. 

The Groupset comprises of:

ST-R8170 Shifters

• Wireless Di2 connectivity
• 2x12-speed Dual-Control lever
• Refined hood for improved ergonomics and aerodynamics
• Improved button access

FC-R8100 - HOLLOWTECH II POWER METER Crank Set - 2x12-speed

• Chainring combinations:  - 52-36T or 50-34T

CS-R8100 Cassette - 12-speed

• 11-tooth small cog for optimal efficiency
• Optimized “Sweet Spot” Gears for pedaling efficiency
• Compatible with 11-speed freehub bodies
• 11-30 and 11-34T cassettes options

RD-R8150 Rear Derailleur

• SHIMANO SHADOW Rear Derailleur
• Integrated D-FLY connectivity
• 12-speed Di2 technology
• Compatible with 11-30, 11-34T

FD-R8150 Front Derailleur

• 12-speed Di2 technology
• Fast, precise front shifting

BR-R8170 Brakes

• More fine-tuned control and heightened braking performance
• 10% wider pad clearance
• Easier bleeding process

RT-MT800 Ice Tech FREEZA Centre-Lock Rotors (as options)

• 1 x 160mm front
• 1 x 140mm rear * (160mm rear available as an option)

KMC X12 Chain with Quick Link

Shimano Battery, Charging Cable and Electric Wires

This groupset comes complete with a Shimano E-Tube SEIS Di2 battery, charging cable and EW-SD300 E-Tube Di2 Electric Wires.

• E-Tube SEIS Di2 Battery, 7.4V Lithium-ion, 3-ports for SD300 wires, internal mount
• EW-EC300 Charging Cable,1700mm
• EW-SD300 E-Tube Di2 Electric Wire, 900mm
• EW-SD300 E-Tube Di2 Electric Wire, 1200mm

PLEASE NOTE, THIS GROUPSET DOES NOT CONTAIN:

• Bottom Bracket

DELIVERY

Delivery to mainland UK addresses are free for orders over £40. Except when you choose delivery to a third party (Click and Collect) there is a charge of £5.95 to cover some of the additional cost the couriers charge for this service. If you choose to collect from Fawkes warehouse there is no shipping charge.

There will an additional charge for deliveries to Highlands and Islands. 

RETURNS TO FAWKES

Whether it’s a jersey that doesn’t fit, or the colour is not quite right, sometimes you’ll need to return items to us.

If an item is 'as new' and has not been used or fitted in any way, you can return it to us by post within 90 days of delivery for a refund. Please ensure that the goods are returned in their original packaging and are in an unused condition.

Please click HERE to print and then complete the returns form and include it inside your parcel.

If you wish you can use our Royal Mail Returns service please follow the instructions on the link below to return your parcel to us.

Royal Mail Returns Service

Please pack the item carefully to avoid damaged during shipping.

Customers need to pay the cost of return delivery unless the item is faulty and this will be deducted from your refund, currently £3.95.

If your have a large item e.g. Child seat, Bike, trailer etc. please contact our customer service team at Guy@fawkes-cycles.co.uk to arrange the best way to return your item, the cost will be deducted from your refund.

You will not receive a refund for the retail value of any free or promotional items you are sent, and you will be charged if they are not returned.

UNWANTED ITEMS

If you change your mind on your purchase, you have a full 90 days to return it for a refund. All Goods must be unused, in a saleable condition and in their original packaging with all labels still attached.

Please pack the item carefully to avoid damaged during shipping.

There are some exclusions to our 90 day returns policy, which are detailed below:

Nutritional products or those with a best before date must be returned within 28 days*

Any customised items such as wheel builds cannot be returned*

GPS systems such as sports watches or cycle computers can only be returned if unregistered*

For hygiene reasons, any intimate garments such as facemasks, underwear and swimsuits can only be returned if the items are faulty.

*Unless faulty

If you wish to return your item for a refund, please follow the returns procedure above.

We try our best to process all refunds within 14 working days. We'll refund your item via your original payment method.

You will not receive a refund for the retail value of any free items you are sent, and Fawkes may charge you for this item if you fail to return it

FAULTY ITEMS

If you feel that your purchase has developed a fault, then please contact us with photographs of the issue before returning any goods - we may be able to solve your problem without you incurring any further inconvenience.

If you find a fault with your item, send it back to us and we'll take a look at it as soon as we can. Items sent back to us will undergo an inspection and it may be necessary to send the item away to the manufacturer to confirm the fault. If we confirm a manufacturing fault, we'll happily replace or refund it.

Please pack the item carefully to avoid damaged during shipping. 

Faulty items should be returned within a reasonable time and in a clean and dry condition. PLEASE NOTE, WE WILL NOT PROCESS DIRTY ITEMS.

Please enclose all your details and a covering note explaining the fault and any other useful details.

We'll try to get back to you within 14 working days of receipt of your parcel, although during busy periods this may take slightly longer.

Your statutory rights are not affected.

We reserve the right to recharge return carriage on items where no fault is identified.

Customer Service Email: Guy@Fawkes-Cycles.co.uk

Please contact us for our Payment & Security policy.