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O.S. SPEED R2106 is the factory tuned engine developed for 1/8 on-road racing competition. The new engine 9 port cylinder liner with re-designed port for more power. Also for great power feel from low end, we have adopted crankshaft from R21 Euro II and well received ceramic ball bearing from offroad engines. Newly designed reinforced connecting rod is now stronger to withstand all the harsh on-road racing scenes.
Features
- 9 port with re-designed port for better air flow for more torque.
- Newly designed reinforced connecting rod is now stronger to withstand all the harsh on-road racing scenes.
*For identification letter "R" is engraved on the connecting rod - Outer head adopts O.S. SPEED image color black with laser engraving.
- Rear bearing is ceramic ball bearing for better low end feeling.
- Adopts crankshaft from R21 Euro II for better mid end feel.
- Based on 21M from R2105, revised needle, slide valve and metering needle for easier adjustment and better low to mid end power delivery.
Specifications
- Displacement： 3.49 cc / 0.213cu.in.
- Bore: 16.08mm / 0.633 in.
- Stroke: 17.20mm / 0.677 in.
- Output :2.80 ps / 2.76 hp / 35,000 r.p.m.
- practical rpm range: 4,000-45,000 r.p.m.
- Engine Weight:345g / 12.17 oz.
Standard accessories
- Glow plug T-RP7
- Reducer φ8.5(RED)
- Exhaust seal ring
- Dust cap set 12-30(φ3、φ16、φ18)
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