30 days return period from the date of delivery. Find out how to make a return
Most products are delivered within 2-5 working days.

Lead times vary depending on the country of delivery and product availability.

Check the details
Nav switch

Enter a search term to see the hints.

Basic data

Sport Bicycles
Brand Shimano
Leading colour Black
Season Year-round
Model/product code R8100 Ultegra Di2 GRULTR8100DI2R014
Purpose Road
Gender Not applicable
Country of origin of the brand Japan
Code 2000107524

Product details

Type of derailleur Electronic
Number of rows 12
Brake type Mechanical jaws
Crank standard HOLLOWTECH II
Crank arm length (mm) 175
Graduation 50-34T / 11–12–13–14–15–17–19–21–24–27–30–34T
Battery capacity 3,7 Wh
Connectivity Bluetooth® LE, ANT
Technologies HG, HOLLOWTECH II, HOLLOWGLIDE, Reach Adjust, Shimano Di2, DCL, E-TUBE, SHIMANO SHADOW RD, SLR-EV, HYPERGLIDE+, SIL-TEC

Warnings and producer's data

Producer Shimano Inc. | 3-77 Oimatsu-cho, Sakai-ku, Sakai City, Osaka 590-8577, Japonia | [email protected]. | SHIMANO POLSKA Sp. Z o.o. | Gutenberga 9 62-023 Żerniki Polska | [email protected]
SHIMANO SHADOW RD
SHIMANO SHADOW RD technology is a rear derailleur mechanism designed for more aggressive riding. Thanks to its low profile and single-spring design, the derailleur does not hit the lower tube of the rear triangle in rough conditions, resulting in quiet and smooth operation.
HG
SHIMANO bicycle chain design. Gives the chain stability and longevity. This translates into better power transmission, more efficient gear changes and enables more aggressive riding.
HOLLOWGLIDE
Technology used in the outer disc of the crankset by SHIMANO. It involves hollowing out the largest sprocket and giving the disc a high degree of rigidity. The result is more precise gear changes.
Reach Adjust
Reach Adjust technology is a special mechanism for adjusting the distance between the brake lever and the handlebar grip. This allows you to adjust it to suit your hand size or type of riding.
DCL
Brake and gearshift function for easier system operation. The internal components of the lever are robust and operate so smoothly and lightly that it is possible to change the front and rear gears with just one finger.
E-TUBE
An app that connects cyclists and Shimano bikes, allowing customisation of bike settings, firmware updates and maintenance via a wireless connection to the bike.
SLR-EV
The SLR-EV is an SLR with a double symmetrical pivot caliper. The short arm brake design has two bearings and a pulley to increase the lever ratio and provide control and braking power. The short arm reduces friction in the pivot, promoting quick response and high performance. The double bearing and single roller design improves performance at the pivot point.
SIL-TEC
SIL-TEC is an advanced process of coating the chain with fluorine particles, which contributes to improved performance. Products with SIL-TEC technology are designed for all conditions and provide a smoother ride, reduced rolling resistance and noise, and an extended service life.
HYPERGLIDE+
A modified drivetrain and chain system for MTB bikes. Allows for smooth operation on any terrain and reduces the time it takes to change gears.
Shimano Di2
Digital automatic gear shifting system from Shimano. Features the highest technological advancement. The system offers high performance for all types of bikes and riding styles. It consists of multiple components that precisely control the movement of the rear and front derailleur, guaranteeing smooth gear changes adapted to the current speed.
HOLLOWTECH II
Hollowtech II is a technology developed by Shimano to improve crank mechanisms. This technology makes the mechanisms lighter, stronger and more efficient. A characteristic feature is the integration of one of the crank arms into the axle.
Feedback

There are no reviews yet, be the first!

Review this product

Shimano accessory group R8100 Ultegra Di2 rim brakes 175mm/50x34T/11-34

Shimano accessory group R8100 Ultegra Di2 rim brakes 175mm/50x34T/11-34

Overall rating
Please enter the order number under which you purchased this product at Sportano.

Shimano accessory group R8100 Ultegra Di2 rim brakes 175mm/50x34T/11-34

No opinion

Size 50 x 34T / 11-34
Choose an Option...

Choose an Option

    Product temporarily unavailable

    Set a notification to receive an email from us when the item is available.

    Notify me
    • We are calculating the delivery time for you More
    • Delivery from 3,99 € More
    • 30 days to return More
    • Original products Check it out