scheduleOur stores and their opening hours
Localisation
Form is being processed

Shimano XT RD-M8100 derailleur, 12-speed, long cage (GS)

115 
RRP 135 
Found a better price?
In-store pickup
Today from 10:00 Check availability
chevron_forward
delivery_truck_speed
By courier to your home Express courier delivery DPD Express courier delivery GLS
Delivery method on Tuesday 27.01.2026
location_on
At collection points
Delivery method on Tuesday 27.01.2026
replay
Extended return option up to 100 days More info
delivery_truck_speed
Rating (73)
Show all reviews
4,9/5

Shimano XT RD-M8100 derailleur

The XT RD-M8100 series of derailleurs brings a new level of drivetrain quietness, thanks to reduced stress in the low gear position and an added buffer on the pulley cage. Larger 13-tooth pulleys increase efficiency and chain control, while compatibility with Shimano's new 12-speed cassettes increases range.
Product features
Greater ground clearance - 28 mm compared to the SGS arm, supports an aggressive driving style
Fast and precise shifting performance optimized for any type of terrain
Quiet drive in all gear positions
New bumper added to rear derailleur pulley cage
Stable drive in uneven terrain
Product details
Groupset Shimano XT
Gears 2x12, 1x12
Control type mechanical
Weight 286 g
Capacity 35T
Max size of the largest sprocket 45T
Max. size of the smallest pinion 10T
Pulleys 13T
Cage type GS - medium
Mounting type Direct mount
product ID 169603
Product rating  (73 ratings)
4,9/5
(73 ratings)
(70 ratings)
(3 ratings)
(0 ratings)
(0 ratings)
(0 ratings)

How do you rate the product?
Add a review
Help others, earn points and shop better prices thanks to the loyalty system
Reviews verified Verified purchases
Form is being processed
Add rating
Form is being processed
comment Product question
Form is being processed

NOTICE
For installation, adjustment and replacement methods that are not found in the user manual, be sure to consult the place of purchase or a distributor. A dealer's manual for professional and experienced bicycle mechanics is available on our website (https://si.shimano.com).
For safety, be sure to read this "user's manual" thoroughly before use, follow it for correct use, and keep it in a safe place for future reference.
The following directions must be observed at all times in order to prevent personal injury, damage to equipment or damage to the surroundings. The directions are classified according to the degree of danger or damage which may occur if the product is used incorrectly.
DANGER - Failure to follow the directions will result in death or serious injury.
WARNING - Failure to follow the directions could result in death or serious injury.
CAUTION - Failure to follow the directions could cause personal injury, or physical damage to equipment or surroundings.

WARNING
- Do not disassemble or modify the product. It may cause the product to not operate correctly, and you may fall unexpectedly and be seriously injured.
- Never use alkali- or acid-based solvents such as rust removers. If such a solvent is used, the chain may break and cause serious injury.
- Clean the chain regularly with an appropriate chain cleaner. The intervals between maintenance depend on the usage and riding circumstances.
- Check that the chain is not damaged (deformation or cracking), skipping, or showing any other abnormalities, such as gears shifting on their own. If any problems are found, consult the place of purchase or a distributor. The chain may break and you may fall.

Japanese manufacturer produces road, mountain, gravel, trekking, BMX and e-bike groupsets. They also offer a whole series of components and apparel. Their range goes from wheels, footwear, eyewear to backpacks. Shimano is a traditional manufacturer known for their quality work, which is why they are the favourite choice of amateurs and professionals.

All the answers to questions about delivery, payment, security, returns, warranty and much else.

You can try these searches
You may find these products complementary
Why shop with us?
Find out what makes us special
1 000 000+ orders

We are the largest cycling e-shop in Slovakia, verified by 100,000+ customers.

Unique customer service

We are available via e-mail, online chat, phone or in person at our MTBIKER stores.

We actively support the cycling community in Slovakia

Thanks to your order we can support cycling development.

Secure payment methods

The payment process is safe and we offer you a wide range of options.

Loyalty system

We will reward you for your purchase and also for quality contributions in the MTBIKER forum, e-shop, trips and photo gallery.

MTBIKER centre and showroom

Visit our store with a pump-track and trail access or our showroom in a historical bulding in central Bratislava.

navigate_beforeprevious navigate_nextďalší
keyboard_arrow_up