O.S. SPEED R21 SHIMO3 Edition/2196/MR05 1FG01

We proudly present the O.S. SPEED R21 Shimo3 Edition, developed in collaboration with Takaaki Shimo, multiple podium finisher at the IFMAR 1/8 Racing World Championship.

This 9-port engine features a specially treated piston and a newly matched cylinder for enhanced durability and longer lifespan. The LGC cooling head and 8.5mm carburetor restrictor are anodized in a distinctive color exclusive to this edition.

Additional upgrades include a new Dust Cover Ring and exhaust spacers to fine-tune engine performance to your preference. This package is completed with the latest EFRA2196 tuned muffler and its MR05 manifold, making it a truly special edition for performance enthusiasts.

Spec.—————————
Displacement3.49 cc / 0.213cu.in.
Bore: 16.08mm / 0.633 in.
Stroke:17.20mm / 0.677 in.
Output 2.8 ps / 2.76 hp / 35,000 r.p.m.
Practical rpm range: 4,000-45,000 r.p.m.
Weight:340g / 11.99 oz.

Included
Glow plug RP7 /Dust cap set/Exhaust seal ring
TR03 EFRA2196 /MR05 Silencer & Exhaust Manifold
O.S. SPEED Flywheel Cone

Warning: it is recommended to perform the break-in using the 2 washers supplied in the box, installed between the engine and the manifold.