Pre-Order | Releasing July 2026
OS MAX-21 V2
OS Engines - OSMG2190
$633.99
Earn Full Throttle Rewards With Every Purchase. Learn More.
MAX-R21 VER.2 is developed for 1/8 on-road racing with excellent cost performance that can be easily used in races for entry level to sports users. Crankshaft and carburetor have been revised from the previous model for more ease of use. Outer head is blue which is image color for Max series with new laser design.
Product Details
In The Box
MAX-21 V2 3.49cc Nitro Engine
RP7 Plug1
Exhaust Seal Ring1
Dust Cap Set (3mm/16mm/18mm)1
Flywheel Collet1
Reducer (8.5mm)1
MAX-R21 VER.2 is developed for 1/8 on-road racing with excellent cost performance that can be easily used in races for entry level to sports users. Crankshaft and carburetor have been revised from the previous model for more ease of use. Outer head is blue which is image color for Max series with new laser design.
Product Details
In The Box
MAX-21 V2 3.49cc Nitro Engine
RP7 Plug1
Exhaust Seal Ring1
Dust Cap Set (3mm/16mm/18mm)1
Flywheel Collet1
Reducer (8.5mm)1