O.S. Speed T1205 2.1cc 1/10 Touring Car Engine Combo

O.S. Part # 1F501

The O.S. Speed T1205 2.1cc Touring Car Engine Combo is a race-focused .12 nitro engine package designed for competitive 1/10-scale on-road RC racing. Built for racers who want crisp throttle response, strong acceleration, and dependable high-RPM performance, the T1205 delivers the precision and consistency expected from O.S. Speed.

Based on T1204, redesigning crankshaft and revised needle taper angle for more smooth power delivery from low to mid end for more ease of use.

This engine combo is a strong choice for 1/10 nitro touring car racing, 235mm on-road applications, and performance-focused builds where smooth drivability, repeatable tuning, and usable power across the full powerband are important.

For racers looking to replace a tired engine or build a competitive touring car package, the O.S. Speed T1205 combo offers proven O.S. quality, race-ready performance, and a trusted platform for serious nitro on-road racing.

Key features:

•2.1cc / .12 nitro touring car engine

•Designed for 1/10-scale on-road RC racing

•Strong acceleration and crisp throttle response

•Smooth, usable powerband for competitive driving

•Ideal for touring car and 235mm nitro applications

•Race-focused O.S. Speed quality and precision

Included in box:

・Combo set TT03 EFRA2700+MT04

・RP6 Glow plug - Exhaust seal ring ・Dust cap set - 3mm/16mm/18mm

Engine specs:

Displacement ---> 2.10 cc / 0.128 cu.in.

Bore ---> 13.67 mm / 0.538 in.

Stroke---> 14.3 mm / 0.563 in.

Output ---> 1.75 ps / 1.73 hp / 35,000 r.p.m.

Practical RPM range ---> 5,000-45,000 r.p.m.

Engine Weight ---> 233 g / 8.22 oz.

Free ground shipping!