Skip to product information
1 of 19
SHIMANO

SHIMANO ULTEGRA Di2 R8170 2x12-speed Groupset

The SHIMANO Ultegra Di2 R8170 2x12-speed groupset revolutionises shifting for road cyclists, delivering smooth, effortless performance. Thanks to Di2 technology, every shift is instant... Read more

Recommended price* : 2.299,99 €

Regular price 1.299,90 €
Regular price Sale price 1.299,90 €
View full details

Description

The SHIMANO Ultegra Di2 R8170 2x12-speed groupset revolutionises shifting for road cyclists, delivering smooth, effortless performance. Thanks to Di2 technology, every shift is instant and precise, even in the most demanding conditions. The compact, ergonomic shift lever provides excellent control in all circumstances, with greater comfort and complete confidence whatever your riding position.

The system offers a significant advantage by conserving the rider’s energy, letting you focus on enjoying the ride and putting in the effort without worrying about drivetrain failures. Shifting takes place at the touch of a switch, eliminating the lever travel required by mechanical systems. This feature is particularly useful for adjusting gears to changing road conditions.

Shimano D-FLY bridges the gap between component technology and Di2 software. D-FLY connects Di2 systems to compatible ANT+/Bluetooth®LE accessories such as cycle computers/GPS devices and lights. It also provides a wireless connection to Shimano E-TUBE PROJECT Cyclist for smartphones, allowing you to customise shift lever settings, check for firmware updates and troubleshoot component faults.

The SHIMANO Ultegra 12-speed drivetrain’s sub-1:1 gear ratio lets you tackle more ambitious climbs while managing your effort more effectively. The synchronised front derailleur maintains a steady pedalling rhythm and smooth shifting, while the E-TUBE PROJECT app allows personalised adjustment. The new SHIMANO Ultegra braking system puts powerful braking within reach of all cyclists.

User manual.

Technical information

This complete groupset includes:

- 12-speed Crankset SHIMANO ULTEGRA R8100
Material: aluminium;
Hollowglide crank structure;
Chainring: 36/52 or 34/50
Length: 172.5mm
Axle Diameter: 24 mm
Weight (manufacturer): 711g
Weight (probikeshop):

- Pair of SHIMANO ULTEGRA Di2 R8170 2x12 Levers
Wireless Di2 system
Compatible front derailleur: FD-R9250 / FD-R8150 / FD-R7150
Compatible rear derailleur: RD-R9250 / RD-R8150 / RD-R7150
Connectivity: Bluetooth (groupset connection + app) / SD300 port for EW-SD300 (for professional diagnostics)
Battery: 2x CR1632 cells
Compatible app: SHIMANO E-TUBE PROJECT
Weight (manufacturer): 391g
Weight (probikeshop):

- SHIMANO ULTEGRA DI2 R8150 2X12-speed Brazed-on Front Derailleur
Large chainring size: 50-54 teeth;
Chain angle: 61-66°;
Chain line: 44.5 mm;
Capacity: 16 teeth;
Weight (manufacturer): 116g
Weight (probikeshop):

- SHIMANO ULTEGRA DI2 R8150 2x12-speed Rear Derailleur
Maximum sprocket: 34 teeth;
Minimum sprocket: 11 teeth;
Maximum front chainring difference: 16 teeth;
Weight (manufacturer): 262g
Weight (probikeshop):

- 12-speed Cassette SHIMANO ULTEGRA R8101
11-30 teeth or 11-34 teeth
Weight (manufacturer): 291g
Weight (probikeshop):

- 12-speed Chain SHIMANO CN-M8100
Sil-Tec treatment;
HG type;
Weight (manufacturer): 252g

- SHIMANO ULTEGRA R8170 Hydraulic Rear Brake Calliper with non-vented resin pads and hose
Hydraulic calliper;
FlatMount fixing type;
Ceramic pistons;
Mineral oil;
Weight (manufacturer): 136g

- SHIMANO ULTEGRA R8170 Hydraulic Front Brake Calliper with non-vented resin pads and hose
Hydraulic calliper;
FlatMount fixing type;
Ceramic pistons;
Mineral oil;
Weight (manufacturer): 146g
Weight (probikeshop):

- Rotors: 1x160 and 1x140mm SHIMANO RT-MT800 Ice-Tech CENTER LOCK with internal nut

Weight (manufacturer): 220g

- SHIMANO SD300 connector: 500mm and 1200mm
Weight (manufacturer): 14g

- SHIMANO BT-DN300 internal battery:
Weight (manufacturer): 53g

- SHIMANO EW-EC300 USB charging cable

Weight (manufacturer): 2730g complete with hoses

Pricing information

*Supplier recommended retail price in May 2024

Overall rating: 4.703704 / 5 from 27 reviews.

AI Generated Review Summary

Summary topics

Review topics: ["delivery","group","works"].

Review highlights

Reviews

Un des meilleurs groupe a ce prix là

"Mieux que le 105 et aussi bien que le Dura Ace et surtout moins cher Rien a redire simplement génial 👍"

— Steph05100 (5/5)

Tres serieux

"Tres serieux"

— Jose L. (5/5)

Très bon groupe, mais pas

"Très bon groupe, mais pas de surprise à ce niveau. Mon regret : aucune boîte, aucune notice. Apparemment c'est souvent le cas mais ça pourrait au moins être stipulé. Dommage ! Je regrette aussi que les plaquettes ne soient pas les modèles avec ailettes ventilées intégrées que j'ai toujours eues sur Ultegra. Pas un gros problème, mais c'est dommage. Bref, un peu plus de clarté dans le descriptif serait un plus. Ça explique l'étoile en moins, pas liée au groupe lui-même."

— Stéphane M. (4/5)

Great components for a modern

"Great components for a modern bike built"

— Kanstantsin M. (5/5)

Alles perfekt

"Alles perfekt"

— Gottfried W. (5/5)

(Fast) alles dabei, was für

"(Fast) alles dabei, was für den Aufbau der Komplettgruppe benötigt wird - Lieferumfang beachten! Innenlager und Pins für die gekürzten Bremsleitungen werden noch zusätzlich benötigt."

— Moritz R. (5/5)

Shimano Top

"Super en ordre, livraison rapide, au final j'ai commandé ici à la place d'Ali. . parce que je pensais que les éléments seraient dans les emballages d'origine, mais ils étaient en vrac (bien emballé) tel que serait été ma commande chez l'autre fournisseur. Néanmoins, bien plus rapide et très satisfaisant."

— Brice K. (4/5)

livraison rapide

"livraison rapide , tout etait bien emballage mais pas d'emballage d'origine shimano. manque une notice de montage et dommage que le boitier de pedalier ne soit pas compris."

— Jérôme (4/5)

Muy bien. Muchas gracias

"Muy bien. Muchas gracias"

— Javier V. (5/5)

Très bon produit 👌🏾

"J’ai commandé mon groupe électrique je ne suis pas déçu"

— JFG (5/5)

Q&A