O.S. Speed R21GT2 .21 Nitro Engine 1/8 GT Racing

O.S. item 1DT00

The O.S. Speed R21GT2 is a high-performance .21 nitro engine built for serious 1/8-scale on-road racers. Known for strong, usable power and the precision manufacturing O.S. Speed engines are recognized for, the R21GT2 is an excellent choice for racers looking for dependable performance at the track.

This engine is suited for racers who want responsive throttle feel, competitive top-end power, and a proven O.S. Speed platform for 1/8 GT and on-road applications.

-The crankshaft uses a two-piece tungsten counterweight. Mass balance has been optimized by reviewing detailed dimensions.

-The outer head is also newly designed. Compared to conventional products, it is lighter in weight. The outer circumference has been machined to give it a sleeker look.

-5 scavenging ports + 3 exhaust ports are adopted in accordance with IFMAR regulations.

-Equipped with a double-adjustable type 22E(B) GT carb. Reducer is newly designed-       7mm(red) AL2.

-For 1/8 GT cars

Specifications: 

Line volume: 3.49 cc / 0.213 cu.in.
Bore: 16.08 mm / 0.633 in.
Stroke: 17.20 mm / 0.677 in.
Power: 2.65 ps / 2.61 hp / 34,000 r.p.m.
Operating speed: 4,000-42,000 r.p.m.
Weight: 362 g / 12.77 oz.

Included Accessories:

-Glow Plug RP6
-Reducer 7mm (red) AL2
-Exhaust seal ring
-Dust cap set sizes φ3, φ16, φ18

Free ground shipping.