JConcepts Boss 1.9" All Terrain Comp Rock Crawler Tires (2) (4.25” OD) (Green) UPG-10003 Fortified for hard launches and

Fortified for hard launches and superior durability

0” bead mounting diameter

Torque-Biasing Center Drive™ absorbs shocks and distributes power to all four wheels

and 4x13 mm screw pin

JConcepts Boss 1.9" All Terrain Comp Rock Crawler Tires (2) (4.25” OD) (Green) UPG-10003 Fortified for hard launches andJCO4157 02 JConcepts Boss 1. 9" All Terrain Comp Rock Crawler Tires (2) (4. 25 OD) (Green) Tires Overview: Dominate the rocks with the JConcepts Boss 1. 9" All Terrain Comp Rock Crawler Tires. Featuring a unique flexible block and bar tread design, narrow competition carcass, and high conformity construction, these tires deliver powerful grip, stability, and control for serious 1. 9 Sporty Mini competitors. About the Boss Comp Tires Aggressive Comp