O.S.Engine 1EG00 - O.S. MAX-B21 3.5cc Buggy Engine

O.S. Engine 1EG00 – O.S. MAX-B21 3.5 cc Buggy Engine

3.5 cc nitro engine for 1/8 buggy and 1/8 GT

The O.S. MAX-B21 is a 3.49 cc nitro engine developed for 1/8 off-road and GT models. The engine is based on the proven O.S. SPEED B2104 series and combines smooth power delivery with balanced top-end performance.

The MAX-B21 was developed with a focus on easy handling and good performance, and is aimed at beginners as well as more experienced sport and race drivers. The engine can be used for both on-road and off-road racing.

Proven design

The crankcase is based on the O.S. SPEED B2104, while the piston and cylinder liner are further developed from the same engine series. The connecting rod is the same type as used in the O.S. SPEED buggy engines.

The MAX-B21 replaces the O.S. MAX-21 XR-B VER.3 and MAX-21 XZ-B VER.2.

Product details

• Manufacturer: O.S. Engine
• Item number: 1EG00
• Model: MAX-B21
• Type: 2-stroke nitro/glow engine
• Use: 1/8 buggy and 1/8 GT
• Displacement: 3.49 cc
• Bore: 16.27 mm
• Stroke: 16.80 mm
• Weight: 352 g
• Crankcase based on the O.S. SPEED B2104
• Piston and cylinder liner based on the B2104 design
• Connecting rod from the O.S. SPEED buggy engine series
• Suitable for both on-road and off-road racing

Included accessories

• P3 glow plug
• 6 mm venturi reducer, orange
• 7 mm venturi reducer, yellow
• Exhaust gasket
• Dust cap set – 3, 16 and 18 mm

What you need

• Exhaust system not included
• Fuel not included

We ship with GLS:

From our warehouse in Denmark.
Shipping is calculated at checkout.
Business customers are welcome.