Menu
Back

Shimano GRX RX812 1x11 speed Rear Derailleur

Shimano GRX RX812 1x11 speed Rear Derailleur
6 reviews
95,50
In stock (10+)

  • Delivery in 3-4 working days
  • Free tracked delivery to Portugal
  • Trustpilot review 9.6 out of 75.932 reviews

mantel-customer-service

Ask a question about this product

Email Customer Service

Pros & Cons

Pros & Cons

  • Thanks to this derailleur you can use a larger cassette and so cycle at a smoother pace.
  • This derailleur has an industrial look.
  • This derailleur can only be used with a single front chainring.
  • This derailleur can only be used with a single front chainring.
Read more on what our customers have to say about this product

Specifications

Specifications

Brand Shimano
Type Single
Number of gears 11 speed
Shifting Type Mechanical
Largest cassette sprocket 42T
Cage Length Long Cage
Maximum Capacity 31T
Weight 267 grams

Description

Description

With this Shimano GRX RX812 1x11 speed you can ride with a single front chainring and still smoothly crest those hills. This derailleur gives you the possibility to mount an 11/40 or 11/42 cassette. In addition, this derailleur is stable, quiet and shifts quickly and smoothly.

Stable and Smooth thanks to Clutch
This derailleur has a built-in clutch. Because of this clutch, the derailleur will not rattle if you cycle on rough terrain and the chain remains well tensioned. This greatly benefits shifting behaviour and the derailleur also makes little noise while cycling.

Watch out!
This derailleur can only be used with a single front chainring, so you can't use this derailleur with two front chainrings.

Which cassette can this derailleur handle ?

- Long cage (GS): 11/40, 11/42
Show more Show less

Reviews

Reviews

4.8 / 5
Average from 6 reviews
5
5 reviews
4
1 review
3
0 reviews
2
0 reviews
1
0 reviews

Most relevant reviews

5 / 5

excellent upgrade for a 1x road setup

- Darren 21 December 2019

I needed a clutched rear mech that would work with my Tiagra 4700 shifters and this fitted the bill perfectly.

Pros & Cons

clutch
easy setup
smooth shifting
none

5 / 5

Easy to fit and very precise

- Ben 10 December 2019

Great value for money and a great bit of kit for any Gravel Bike.

5 / 5

Great product at the best price!

- Tim 28 August 2019

Finally shimano get on board with a 1x gravel groupset. Lovely mech that worked faultlessly with STI shifters from the start without any bodges or work arounds.

Pros & Cons

Clutch
Looks
STI comparability
Expensive compared to MTB equivalents

5 / 5

Geweldig

- OvdV 26 November 2019

Zeer goede derailleur voor 1 x 11. Robuust en degelijk, snel en soepel schakelend en de clutch zorgt er voor dat de ketting altijd op spanning blijft. Bevalt mij nog beter dan Ultegra of XTR.

4 / 5

Buon deragliatore x gravel

- Giuseppe 4 October 2019



Related products

Related products

Shimano GRX RX812 1x11 speed
Shimano GRX RX812 1x11 speed
95,50
This product
Shimano Ultegra R8000 11-speed
Shimano Ultegra R8000 11-speed
101,64
Campagnolo Veloce 10 Speed
Campagnolo Veloce 10 Speed
81,27
SRAM Force 10 speed
SRAM Force 10 speed
99,57
Compare the products above
Shimano GRX RX812 1x11 speed Shimano Ultegra R8000 11-speed Campagnolo Veloce 10 Speed SRAM Force 10 speed
Shimano GRX RX812 1x11 speed Shimano Ultegra R8000 11-speed Campagnolo Veloce 10 Speed SRAM Force 10 speed
6 reviews 43 reviews 39 reviews 7 reviews
Type Single
Number of gears 11 speed 11 speed 10 speed 10 speed
Shifting Type Mechanical Mechanical Mechanical Mechanical
Largest cassette sprocket 42T 30T / 34T 29T / 32T 28T
Cage Length Long Cage Short Cage / Long Cage / RD-R8000GS Short Cage / Medium Cage Short Cage
Maximum Capacity 31T 35T / 39T 32T / 37T 33T
95,50 101,64 81,27 99,57
This product View product View product View product