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1/4
RRP 119,99
99,95
20,04 discount
Online in stock
(only 7)
Only available online
Shimano GRX RX812 11 Speed Rear Derailleur € 99,95
This product can only be ordered online. If you choose pickup at Mantel when ordering, you can try the product in store without any obligation.
Pay at pickup
- Ordered before 22:00, delivered tomorrow
- Free tracked delivery
Ask a question about this product
Email Customer ServicePros & 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 |
| 11 speed | |
| Mechanical | |
|
Type
|
Single |
| Long Cage | |
| 31T | |
|
Weight
|
267 grams |
|
Largest cassette sprocket
|
42T |
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.
A problem that crops up often is a skew derailleur hanger. It can happen if the derailleur knocked into something, for example in the case of a fall on the bike. Luckily it can be fixed! You can read more here.
Clean the jockey wheels well too!
Just like the chain, the jockey wheels on a derailleur get super dirty. As a result the shifting is not as good and it does the lifespan of your derailleur no good. For that reason, it's a good idea to clean the jockey wheels at the same time when you clean and lube your chain. Do this by running a cloth along the jockey wheel while gently turning the chain. Of course it gets to a point where the jockey wheels are worn out. In this blog post you can find out more about when jockey wheels should be replaced and what you'll need.
Show more
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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, 11/42User tips
Skew derailleur hanger?A problem that crops up often is a skew derailleur hanger. It can happen if the derailleur knocked into something, for example in the case of a fall on the bike. Luckily it can be fixed! You can read more here.
Clean the jockey wheels well too!
Just like the chain, the jockey wheels on a derailleur get super dirty. As a result the shifting is not as good and it does the lifespan of your derailleur no good. For that reason, it's a good idea to clean the jockey wheels at the same time when you clean and lube your chain. Do this by running a cloth along the jockey wheel while gently turning the chain. Of course it gets to a point where the jockey wheels are worn out. In this blog post you can find out more about when jockey wheels should be replaced and what you'll need.
Reviews
Reviews
5 / 5
Fast and good!
- Dennis 21 November 2022
Top
Pros & Cons
Great price
Superfast delivery
Top product
Automatic translation
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
Frequently bought together
Frequently bought together
Related product
Related product
Compare the products above
|
|
|
| Shimano GRX RX812 | Shimano GRX RX810 | |
| 7 reviews | 5 reviews | |
| Number of gears | 11 speed | 11 speed |
| Shifting Type | Mechanical | Mechanical |
| Type | Single | |
| Cage Length | Long Cage | Long Cage |
| Maximum Capacity | 31T | 40T |
| Weight | 267 grams | 251 grams |
| 99,95 | 94,95 | |
| This product | View product |
Shimano GRX RX812 11 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.
Which cassette can this derailleur handle ?
- Long cage (GS): 11/40, 11/42User tips
Skew derailleur hanger?A problem that crops up often is a skew derailleur hanger. It can happen if the derailleur knocked into something, for example in the case of a fall on the bike. Luckily it can be fixed! You can read more here.
Clean the jockey wheels well too!
Just like the chain, the jockey wheels on a derailleur get super dirty. As a result the shifting is not as good and it does the lifespan of your derailleur no good. For that reason, it's a good idea to clean the jockey wheels at the same time when you clean and lube your chain. Do this by running a cloth along the jockey wheel while gently turning the chain. Of course it gets to a point where the jockey wheels are worn out. In this blog post you can find out more about when jockey wheels should be replaced and what you'll need.