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The O.S. SPEED R2106 PBI Combo Set 1EY05 is a high-performance RC nitro engine designed for 1/8 on-road cars and competition.
This PBI version combines the R2106 engine with an TR03 EFRA2196 exhaust system with MR05 manifold, providing a complete setup for drivers seeking performance and consistency.
With a displacement of 3.49 cm³, the R2106 delivers 2.80 hp at 35,000 rpm and offers a practical rpm range of 4,000 to 45,000 rpm.
It weighs 345 g.
O.S. SPEED R2106 PBI Combo Set RC Engine 3.49 cc 1/8
Fast shipping
Via Chronopost 24H
Via DPD 24/48H
Colissimo 48/72H
327257 products in stock
Real-time stock displayed
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Secure payment
In 3 or 4 installments

4.6/5
Specialist since 1955
Fast shipping
Via Chronopost 24H
Via DPD 24/48H
Colissimo 48/72H
327257 products in stock
Real-time stock displayed
Secure payment
Secure payment
In 3 or 4 installments

4.6/5
Specialist since 1955
The engine retains the crankshaft from the R21 Euro II and the rear ceramic bearing, while the new 9 transfer sleeve, piston, and reinforced connecting rod contribute to this evolution.
The O.S. SPEED R2106 PBI Combo Set 1EY05 thus provides a complete solution for the pilot looking for a high-performance .21 RC engine for a 1/8 on-road car, accompanied by an EFRA2196 TR03 exhaust with MR05 manifold.
The carburetor of the O.S. SPEED R2106 is based on the 21M used on the R2105. O.S. has however modified several elements, including the needle and throttle valve, to facilitate adjustments and achieve a more effective response in low and medium speeds.
For the pilot, this design facilitates finding the appropriate setting for track conditions, fuel used, and desired behavior.
With a displacement of 3.49 cm³, the R2106 belongs to the .21 engine category for 1/8 RC cars.
| Feature | O.S. SPEED R2106 PBI |
|---|---|
| Displacement | 3.49 cm³ |
| Bore | 16.08 mm |
| Stroke | 17.20 mm |
| Power | 2.80 PS / 2.76 hp |
| Power Band | 35,000 rpm |
| Practical RPM Range | 4,000 to 45,000 rpm |
| Weight | 345 g |
These specifications correspond to the published data for the R2106 PBI Combo Set.
The 1EY05 is offered as a Combo Set version with an exhaust system tailored to the engine.
The set includes the TR03 EFRA2196 as well as the MR05 manifold. This configuration provides a consistent engine and exhaust system for a 1/8 on-road RC car.
A O.S. T-RP7 turbo glow plug is also included.
The PBI version is part of the evolution of the R2106, with an engine architecture focused on efficiency, torque, and resistance to competition stresses.
The engine retains the crankshaft from the R21 Euro II and the rear ceramic bearing, while the new 9 transfer sleeve, piston, and reinforced connecting rod contribute to this evolution.
The O.S. SPEED R2106 PBI Combo Set 1EY05 thus constitutes a complete solution for the pilot looking for a high-performance .21 RC nitro engine, intended for a 1/8 track car and accompanied by an EFRA2196 TR03 exhaust with MR05 manifold.