REDS 521 GTS Gen3 3.5cc (.21) On Road Nitro Engine (Ceramic)

The REDS 521 GTS Gen3 is a 3.5cc (.21) ceramic-bearing nitro engine designed for 1/8 on-road racing applications. This version includes a pre break-in by Mario Rossi.

Features

• 3.5cc (.21) displacement
• High-strength steel crankshaft
• Optimized porting for smooth throttle response and acceleration
• Advanced cooling system
• High fuel efficiency
• Precision-machined internals
• Performance ceramic ball bearings

Specifications

• Displacement: .21 cu.in (3.5cc)
• Recommended Application: 1/8 On-Road
• Bore: 0.64in (16.2mm)
• Stroke: 0.67in (16.9mm)
• Intake Ports: 5
• Exhaust Ports: 1
• Weight: 12.17oz (345g)

Includes

• 521 GTS Gen3 3.5cc (.21) On Road Nitro Engine (Ceramic) with Pre Break-In by Mario Rossi