Specialized Fast Trak Mountain Bike Tire Casing/Compound:Grid Lite T5/T7 Combination of aluminum (40T) and

Combination of aluminum (40T) and steel gears

Four-way-stretch dissolvable yarn

Future resort star

Pockets External Chest Power Mesh Dump Pockets

S4/S5: 170mm

Specialized Fast Trak Mountain Bike Tire Casing/Compound:Grid Lite T5/T7 Combination of aluminum (40T) andFast Trak Grid Lite All Speed, All Conditions The Fastest XC Race Tire for Varied Conditions. Experience unmatched speed, control, and efficiency in mixed terrain with Fast Trakthe ultimate go to tire for high performance XC riding and racing. Its optimized tread design and reduced knob height cut weight by 110g and improve rolling resistance by 5%, delivering faster acceleration, superior handling, and peak performance in any condition. At a Glance