Radio control O.S. SPEED R21 EURO II COMBO SET [1DR01]

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

Product Description ■ O. S. SPEED R21 EURO II COMBOSET for O. S. Ogawa Seiki RC car engine.
"How fast and smooth you can drive."
The 0. S. SPEED R21 EURO Spec.> The. S. SPEED R21 EURO Spec. is highly popular in Europe, which has a strict eye on 1/8 racing engine.
While inheriting the smooth and easy-to-handle feeling of the previous model, the counterbalance of the crankshaft has been revised to improve the power in the middle and low speed range.
The low speed and idling performance have been improved, and the performance for long and severe racing scenes has been optimized.
The outer head has been evolved into the 0. S. SPEED R21 EURO II, which has been carefully selected in various places.
The outer head has been revised to improve the cooling performance and weight reduction, and has been given special laser processing.
The inner head with O-ring specifications adopted in the R2104 has been adopted to improve the cooling performance and weight reduction.
The "O" ring has been adopted (black) with oil resistance.
The cylinder and piston with 7 ports has been made into a new design with additional cooling holes in the exhaust lower part and additional processing changes to the crankcase.
The crankshaft has been made into a special product with 3 pieces of tungsten. This has been made into a new design with added cooling holes in the exhaust lower part and additional processing changes to the crank case.
The crankshaft has been made into a special product with 3 pieces of tungsten. This has been made into a combination that supports the middle and low speed torque and idling performance.
The carburetor has been made into a special product with 3 pieces of tungsten. It has been made into a combination that supports TR01 (EFRA2098) + MR02 and European long straight.
[Product Details]
Stroke Volume : 3.49 cc / 0.213 cu. in.
Bore : 16.08 mm / 0.633 in.
Stroke : 17.20 mm / 0.677 in.
Output : 2.8 ps / 2.76 hp / 35000 r. p. m.
Practical Rotation Speed : 4000-45000 r. p. m.
Weight : 340g / 11.99 oz.
Standard Accessories : Glow Plug RP7, Exhaust Seal Ring O. S. SPEED Dust Cap Set φ 3, φ 16, φ 18 each.
[Product Details 2104 8.5 COMBOSET