O.S. ENGINES SPEED R2104
€339.00
O.S. ENGINES SPEED R2104
- Descrizione
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Descrizione
Cylinder Liner
This new engine boasts a 9-port piston liner to improve torque in low-middle power range. It produces enough power as designed even for high traction tracks.
Outer Head
Distance between the cooling fins is enhanced for better air flow and better balance. The heat sink head is anodized in two colors: black and red.
Inner Head
A silicon O-ring fit to the inner head prevents dust from coming into the engine.
Crankshaft
The redesigned crankshaft counter weight enables smooth power transition from low to top.
Carburetor
The carburetor is 21M2(B), which has been proved to be consistent and reliable for generations (R2101, 2102, 2103)
Product Specifications
| Cylinder Type | Nine port liner |
| Engine (Only) Weight | 340g (11.99oz) |
| Cylinders | Single |
| Product Width | 45mm (1.8″) at mounting tabs |
| Product Height | 91.2mm (3.6″), total height |
| RPM Range | 4,000 – 45,000 |
| Starter Type | Bump |
| Power Type | Glow |
| Plug Type | OS RP7 turbo, cold heat range |
| Stroke | 17.20mm (0.677″ ) |
| Crankshaft Threads | UNF 1/4-28 |
| Displacement | 3.49 cc (0.213 cu in) |
| Product Length | 94mm (3.7″) backplate to of crankshaft |
| Bore | 16.08mm (0.633″ ) |
| Crankshaft Type | Threaded |
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