REDS 721 Pista Gen3 3.5cc (.21) On-Road Nitro Engine

The REDS 721 Pista Gen3 3.5cc (.21) On-Road Nitro Engine is designed for 1/8 on-road racing. It features a redesigned 7-port sleeve, updated carburetor, optimized cooling head, and components selected for stability, durability, and precise tuning.

Features

• 7-port sleeve for increased power and efficiency
• DLC-coated crankshaft to reduce friction and support component durability
• High-speed front bearing for improved idle stability
• Swiss-made ceramic rear bearing
• Redesigned carburetor with enhanced fluid dynamics, a repositioned high-speed needle, and reworked mid-range needle
• Optimized cooling head for heat dissipation and vehicle balance
• Hand-tuned by Mario and Marco Rossi
• Compatible with multiple venturi sizes for adjustable airflow
• Recommended for use with REDS 2113 + Straight90™ exhaust system

Specifications

• Displacement: .21 cu.in (3.5cc)
• Recommended Application: 1/8 On-Road
• Bore: 0.63in (16.05mm)
• Stroke: 0.68in (17.3mm)
• Intake Ports: 7
• Exhaust Ports: 3
• Weight: 11.75oz (333g)

Includes

• (1) 721 Pista Gen3 3.5cc (.21) On-Road Nitro Engine