The Maxxis Ardent 27.5/29 x 2.25" Mountain Bike Tire features fast rolling, ramped center knobs, with large block side knobs to provide excellent cornering traction. This excellent all-condition tire has ramped center knobs that provide excellent traction for braking and acceleration while also reducing rolling resistance, while its large block side knobs provide excellent traction for secure cornering. Perform your best with the Maxxis Ardent 27.5/29 x 2.25" Mountain Bike Tire