O.S. SPEED R21 Shimo Ausgabe 2 Combo O.S.Engine 1DJ00

O.S. SPEED R21 Shimo Ausgabe 2 Combo O.S.Engine 1DJ00 O.S. SPEED R21 Shimo Edition 2 Combo O.S.SPEED R21 SHIMO EDITION 2 On-Road Engine COMBO SET




O.S.SPEED R21 SHIMO EDITION 2 Combo Set (1DJ00) TR02 EFRA2165 & MR03-WC

We have developed O.S.SPEED R21 Shimo edition collaborated with Takaaki Shimo, a multiple podium winner of the IFMAR 1/8 Racing World Championship. It is a 7-port engine with a new cylinder liner, which has extra holes to reduce overheating. The cooling head and 8.5mm carburetor restrictor are anodized in the special color; champagne gold. The crankshaft is modified to meet his preference, smooth power transition from bottom to the top speed. For the first time we make the combination of TR02 (EFRA2165) silencer with MR03-WC manifold to dedicate to this special edition.


It is a 7-port engine with a new cylinder liner, which has extra holes to reduce overheating.


The crankshaft is modified to meet his preference, smooth power transition from bottom to the top speed.


The cooling head and 8.5mm carburetor restrictor is anodized in the special color; champagne gold.

Specs:Displacement: 3.49 cc
Bore: 16.08mm
Stroke: 17.20mm
Output: 2.76 hp @ 35.000RPM
Practical rpm range: 4.000-45.000
Weight: 340g

Standard accessories：
Glow plug RP7
Dust cap set
Exhaust seal ring
TR02 EFRA2165 Silencer
Exhaust Manifold MR03-WC
O.S.SPEED Flywheel Colette