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 |
Ability brake type | Disc brake Center lock |
Suitable tyre type | Tubeless tire |
Width | 30.70 mm |
jaw width | 110 mm |
Axle system | HR 12x142 mm |
Weight | 822 g |
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 | 110 mm |
Axle system | HR 12x142 mm |
Axis standard | Thru axle |
Installation width front | 142 mm |
Installation width rear | 142 mm |
Diameter rear axle | 12 mm |
Cassette compatibility | 11-speed, 12-speed |
Country of origin | France |
CO₂-Emission | |
Climate contribution |
Weight | 822 g |
How often does a product of this brand in the «Wheels» category have a defect within the first 24 months?
Source: Digitec 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: Digitec GalaxusUnfortunately, we don't have enough data for this category yet.
How often is a product of this brand in the «Wheels» category returned?
Source: Digitec 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.