O.S. Max B21 Engine (Drake In Service Done) - OSMG2150 Protek this set helps maintain optimal

this set helps maintain optimal shock function and oil retention across rough terrain and long race days

Built-in 2A cell balancing

0 Front/Rear/Center Differential Case is an optional performance upgrade designed for Tekno’s latest generation of 1/8 platforms

this Sanwa M17 Limited Edition sets the standard both on the track and in the pit

O.S. Max B21 Engine (Drake In Service Done) - OSMG2150 Protek this set helps maintain optimalEngine Overview The O. S. MAX B21 is a versatile and affordable . 21 engine designed for 1 8 Nitro Off Road and 1 8 GT racing. With performance inspired by the O. S. SPEED line, the MAX B21 delivers an ideal balance of smooth power, stability, and ease of useperfect for entry level racers, club racers, and competitive sports class drivers. The lightweight outer head is based on the MAX 21XR B Ver. 3 and has been further optimized to reduce mass while