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
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.
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.
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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, 11/42Reviews
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
Frequently bought together
Frequently bought together
Recommended by the product specialist
Recommended by the product specialist
Related products
Related products
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| 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 |
Shimano GRX RX812 1x11 speed Rear Derailleur
Specifications
| Brand | Shimano |
|---|---|
|
Type
|
Single |
| 11 speed | |
| Mechanical | |
|
Largest cassette sprocket
|
42T |
| Long Cage | |
| 31T | |
|
Weight
|
267 grams |
Shimano GRX RX812 1x11 speed Rear Derailleur
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.