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SHIMANO

SHIMANO GRX RX812 11-Speed Rear Derailleur

Réf. fabricant : IRDRX812
The SHIMANO GRX RX812 11-Speed Rear Derailleur was developed to meet the growing popularity of Cyclo-cross and Gravel riding, and the significant demands they... Read more
94,99 €
94,99 €
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Description

The SHIMANO GRX RX812 11-Speed Rear Derailleur was developed to meet the growing popularity of Cyclo-cross and Gravel riding, and the significant demands they place on derailleurs originally designed for road use.

It features a chain stabiliser with Shadow RD+ technology (derived from mountain biking) which prevents chain drops. A switch is placed at the upper pulley and when activated, it holds the pivot more firmly and reduces vibrations.

This model designed for Single Chainring setups can be paired with a cassette sprocket of 42 teeth for greater flexibility.

Manufacturer's Manual

Ref: 7970332606630

Informations techniques

GENERAL
Group: SHIMANO GRX RX810
Manufacturer Reference: RD-RX812
Manufacturer Weight: 267g
Type: Mechanical rear derailleur

DRIVETRAIN
Speeds: 1x11
Technology: Shadow RD+
Mounting: Traditional / Direct Mount
Max. Front Difference: 0 teeth
Capacity: 31 teeth
Max./Min. Large Sprocket Teeth: 42 teeth / 40 teeth
Max./Min. Small Sprocket Teeth: 11 teeth
Pulley Teeth: 11 teeth

► 4 Fluorine-coated bushings: improves derailleur performance and durability by minimising resistance to movement and offering a smoother, more responsive gear shifting action ;
► Shadow RD+: Silent and smooth drivetrain, reducing chain slap and chain skip, lighter and more efficient than conventional systems ;

COMPATIBILITY AND RECOMMENDATIONS
Chains: Shimano Linkglide - HG 11-speed
Crankset: Single Chainring
Levers: All Shimano 11-speed mechanical Road and Gravel
;

Informations prix

*Supplier recommended retail price in February 2024

Overall rating: 4.6 / 5 from 5 reviews.

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Reviews

good derailleur

"long clevis derailleur for a 10/40 nickel cassette good value for money".

— laurent (4/5)

Shimano's top-of-the-range range, no surprise

"To replace my SRAM APEX 1 groupset. Difficult to give an opinion only on the derailleur when you've just changed the whole group. It's quiet, precise and easy to install."

— Anonymous (5/5)

At the top

"Easy to adjust, smooth gear shifting, and the little clevis lock when it shakes, nothing to complain about."

— Anonymous (5/5)

Impeccable

"Impeccable derailleur for the conversion of my mountain bike".

— Anonymous (5/5)

Well designed, perfect for gravel.

"Well designed with disengageable tensioning system. Easy to adjust and with a contained weight. Not enough miles yet to speak of reliability."

— Av- (4/5)

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