HUTCHINSON Griffus Rlab 27.5x2.4 Tubeless. Reduced height knobs compared to the 2.50 profile for high performance. Central knobs are orientated for faster rolling performance. A tri-compound Race Ripost Gravity construction that precisely controls tread deformation and increases grip. A 66 TPI Hardskin casing will give you the ability to handle the most difficult terrain. Package Contents: HUTCHINSON Griffus Rlab Tubeless Tires