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OS Engines Speed R21 Euro3 Combo Set - SCH-OS1FP01
Brand: OS Engines
Part No: SCH-OS1FP01
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Description
The OS Engines Speed R21 Euro3 Combo Set, part number SCH-OS1FP01, is an engine combo set for 1/8 on-road applications. It develops increased overall power output while retaining the smooth, flat power characteristics associated with the R21 Euro2.
The engine uses the R21 Euro2 crankcase design with ceramic bearings. Its selected R2105 crankshaft has two 4.5 mm diameter tungsten weights, contributing to improved throttle response. The cylinder liner has a newly designed structure for overall balance, while the piston is based on the R2106 piston and receives special treatment to improve resistance to seizure.
Engine Features
The innerhead has redesigned fins to support heat management. The outer head retains the black O.S. SPEED finish and uses a newly designed laser logo. The carburettor includes a dust cover and dust cover ring, designed to help avoid fuel leakage and air entering the fuel line. Other internal parts are identical to those used in the R2106.
This combination is specified for 1/8 on-road use and brings together the R21 Euro3 engine configuration with the included TR03 EFRA2196 and MR05 components.
What's Included
- O.S. Speed R21 Euro3 engine
- TR03 EFRA2196
- MR05
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Specifications
For 1/8th On Road.
We have achieved an overall increase in power output while maintaining the smooth, flat power characteristics of O.S. SPEED R21 EURO2.
Crankcase:
Features the proven R21 EURO2 crankcase with ceramic bearings.
Crankshaft:
We have selected the R2105 crankshaft, which features two tungsten weights (4.5 mm diameter). This contributes to improved throttle response.
C&P
The cylinder liner features a newly designed structure that offers excellent overall balance. The piston is same as R2106, but it has undergone a special treatment to enhance its resistance to seizure.
Innerhead:
Innerhead features a redesigning of fin for better heat management.
Outerhead
Outerhead retain the signature black color of the O.S. SPEED with newly designed laser logo.
Carburetor:
Features the dust cover to avoid fuel leakage and air in the line with “Dust cover ring”.
Other:
Other internal parts are identical to R2106.
For Combo set, it comes with TR03 EFRA2196+MR05
Key Info:
- Brand: OS Engines
- Part No: SCH-OS1FP01
- Barcode: 5051294222765
- Displacement: 3.5cc (0.21ci)
- Starter: Flywheel Start
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