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Shimano GRX RX812 1x11 speed Rear Derailleur

Shimano GRX RX812 1x11 speed Rear Derailleur
6 reviews
424,80 21,90 discount
Currently out of stock
Expected delivery time: week 11 - 17 January

  • Free tracked delivery to Poland
  • Trustpilot review 9.4 out of 65.511 reviews

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

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

Reviews

Reviews

9.5 / 10 Average from 6 reviews | Write a review
9.5 / 10
6 reviews
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5
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1
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Pros

  • Clutch (2)
  • easy setup (1)
  • smooth shifting (1)
  • Looks (1)

Cons

  • none (1)
  • Expensive compared to MTB equivalents (1)

Most recent reviews

10 / 10

Darren, 21 December 2019

excellent upgrade for a 1x road setup

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

Pros

  • clutch
  • easy setup
  • smooth shifting

Cons

  • none

10 / 10

Ben, 10 December 2019

Easy to fit and very precise

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

10 / 10

Tim, 28 August 2019

Great product at the best price!

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

  • Clutch
  • Looks
  • STI comparability

Cons

  • Expensive compared to MTB equivalents

10 / 10

OvdV, 26 November 2019

Geweldig

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.

7 / 10

Giuseppe, 4 October 2019

Buon deragliatore x gravel

Show all reviews

Recommended by the product specialist

Recommended by the product specialist


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Shimano GRX RX812 1x11 speed Shimano Ultegra R8000 11-speed Campagnolo Veloce 10 Speed SRAM Force 22 WiFli 11-speed
Shimano GRX RX812 1x11 speed Shimano Ultegra R8000 11-speed Campagnolo Veloce 10 Speed SRAM Force 22 WiFli 11-speed
6 reviews 28 reviews 36 reviews 3 reviews
Type Single
Weight 267 grams 200 grams 260 grams 190 grams
Number of gears 11 speed 11 speed 10 speed 11 speed
Shifting Type Mechanical Mechanical Mechanical Mechanical
Largest cassette sprocket 42T 30T / 34T 29T / 32T 32T
Cage Length Long Cage Short Cage / Long Cage / RD-R8000GS Short Cage / Medium Cage Medium Cage
424,80 343,40 361,50 429,30
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