Shimano studied the complicated relationship between tire size, rim width, air pressure, and tire lateral rigidity to optimize the GRX rim width for 32-50c tires. In addition, we pursued the best balance of rim weight, strength, and profile in order to deliver an exceptional gravel wheel.
- 32 mm height full carbon rim
- Internal rim width: 25 mm
- Recommended tire size: 32mm to 50mm
- 12x100mm thru axle
- Centerlock Disc