SXT 3.0 Lite Traction Compound motor Big Bertha is an Estes

Big Bertha is an Estes original

This Readyset model comes with R/C system pre-installed

Redesigned upper A-arm shape eliminates bind

and the FLUX ELH-6S-capable electronic speed controller is fully capable of up to 22

SXT 3.0 Lite Traction Compound motor Big Bertha is an EstesSXT 3. 0 was designed to provide superior performance in a minimum odor environment for both foam and rubber tire racing. In high bite situations it will help free up your car in the corners and reduce twitchiness. It also has the ability to rejuvinate old foam tires. Soak your tires a couple times with SXT 3. 0 and they tend to come back to "like new". Simply run them once and you have race ready tires that you usually would have toss away. Carpet