The new GRX wheel helps you ride on gravel trails that are faster, go further, and are more fun. Wider tires require wider rims to maintain their lateral stability at low air pressure. Shimano has studied the complex relationship between tire size, rim width, air pressure, and tire side stiffness to optimize the width of the GRX rim for tires with a cross-section of 32 to 50 mm. Additionally, we have sought the best balance between weight, strength, and rim profile to create an exceptional wheelset for gravel.
BIke wheel type | Rear wheel |
Suitable tyre type | Tubeless tire |
Ability brake type | Disc brake Center lock |
Axle system | HR 12x142 mm |
Weight | 822 g |
Width | 30.70 mm |
jaw width | 25 mm |
Item number | 34714873 |
Manufacturer | Shimano |
Category | Wheels |
Manufacturer no. | EWHRX870LRED70 |
Release date | 17-5-2023 |
Colour | Black |
Exact colour description | Black |
Material group | Carbon |
Material | Carbon |
Bike area of use | Gravel, Racing bikes |
Wheel size | 28" |
Model year | 2023 |
BIke wheel type | Rear wheel |
Ability brake type | Disc brake Center lock |
Rim model | GRX WH-RX870 |
Material rim | Carbon |
Rim height | 32 mm |
Number of holes | 24 x |
Suitable tyre type | Tubeless tire |
Width | 30.70 mm |
jaw width | 25 mm |
Axle system | HR 12x142 mm |
Axis standard | Thru axle |
Installation width rear | 142 mm |
Diameter rear axle | 12 mm |
Cassette compatibility | 11-speed, 12-speed |
Freewheel | SRAM XD 11/12 speed |
Country of origin | France, South Africa |
CO₂-Emission | |
Climate contribution |
Weight | 822 g |
Product Safety |
How often does a product of this brand in the «Wheels» category have a defect within the first 24 months?
Source: GalaxusHow many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: GalaxusHow often is a product of this brand in the «Wheels» category returned?
Source: Galaxus
Shimano's GRX carbon wheels hardly showed any weaknesses during the test. They are among the most torsionally stiff wheels tested. In the wind tunnel results, they are in the upper midfield. The weight is fully within the green range.