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Out of production
O.S. MAX-B21 radio-controlled combustion engine
Engine for 1/8 and GT / Rally Game buggies.
O.S. MAX-B21 radio-controlled combustion engine
Fast shipping
Via Chronopost 24H
Via DPD 24/48H
Colissimo 48/72H
337563 products in stock
Real-time stock displayed
Secure payment
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
337563 products in stock
Real-time stock displayed
Secure payment
Secure payment
In 3 or 4 installments

4.6/5
Specialist since 1955
O.S. MAX-B21 radio-controlled combustion engine
Engine for 1/8 and GT / Rally Game buggies.
This engine is designed for leisure use, while benefiting from the technical basis and qualities of an O.S. SPEED engine.
This engine strikes the perfect balance between ease of use and performance.
The blue anodized cylinder head features fin holes to reduce weight.
The shape of the combustion chamber insert is new to increase efficiency.
What's more, this engine has a very stable idle, making it very easy to use.
Technical specifications
- Displacement: 3.49cc
- Bore: 16.27mm
- Stroke: 16.80mm
- Power: 2.6hp @ 34000 rpm
- Rev range: between 4000 and 41000 rpm
- Weight: 361g without silencer
Accessories included :
- P3 turbo spark plug
- 6mm diameter venturi (Orange)
- 7mm diameter venturi (Yellow)
- 3 plugs: 3mm/16mm/18mm
- Exhaust gasket
- Motor use
- Cars
- Engine displacement
- 2 stages 3.5cc & +
- Engines
- Thermal
- Level of use/difficulty
- Thermal
- Product types
- Motors and variators for radio -controlled models
- States
- Out of production
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