OS Engine MAX-R21 V.2 On-Road Racing Engine Combo Set

New MAX-R21 VER.2 for 1/8 On-Road!

A new on-road engine for beginners and sports users!

Designed for 1/8th scale on-road racing, the MAX-R21 VER.2 offers excellent value for money and is easily suitable for entry-level and sport racing. The crankshaft and carburetor have been redesigned compared to the previous model for improved usability. The outer head is blue, the Max series' signature color, and features a new laser-engraved design.

What’s new in the Max-R21 version 2?

• The crankcase design comes from the R2106
• The crankshaft has 3 bronze counterweights for a better feel in the low/mid speed range and easier handling
• The new outer head offers better cooling and features a new laser engraving design
• The inner head uses a similar O-ring design as the R2106
• The carburetor is the 21M4, the same design as the R2106 engine, for easier adjustment

Standard accessories

• RP7 glow plug
• 8.5mm Venturi (purple)
• Sealing ring for the exhaust
• Dust cap set (f3/f16/f18)
• flywheel cone

Specifications

• Displacement: 3.49cc
• Bore: 16.08mm
• Stroke: 17.20mm
• Power: 2.75ps / 2.71hp @ 32000RPM
• Practical speed range: 4000-44000
• Motor weight: 350g

Combo set includes

• TR02 EFRA2165 exhaust
• MR02 exhaust manifold