J Concepts 4128-02 Rock Bumps 1.0" Micro Crawler Tires 63mm OD Green 2 Pack Centerbeam capable of executing over 120

capable of executing over 120 million instructions per second

Dimensions: Length: 63 7/8

Following the lead of the Canadian National Railroad

Highly Detailed Painted Bodies with Precision Graphics

J Concepts 4128-02 Rock Bumps 1.0" Micro Crawler Tires 63mm OD Green 2 Pack Centerbeam capable of executing over 120J Concepts 4128 02 Rock Bumps 1. 0" Micro Crawler Tires 63mm OD Green 2 Pack When it comes to competition, its hard to beat a pin style tire. JConcepts introduces the Rock Bumps tires specifically designed for 1. 0 mini comp crawler competition. The name suggests similarities to a popular dirt and all terrain tire used for years in the #gojconcepts line up, the Goose Bumps. The hefty surface area of the pins, combined with horizontal and vertical