OS Speed R2101 Engine with 21M2(B) Carburetor

A BIG boost in performance for 1/8 scale on-road!

Take the winning heritage of the 21XZ-R, combine it with the 21XZ-B's superb features and what do you get? The Speed R2101: a top choice for 1/8 scale on-road!

Its specially designed 7+3 port cylinder liner ensures stress-free acceleration, great power at maximum rpm and improved fuel economy. The DLC coated crankshaft has tungsten weights and is potted with silicone. The crankcase is a new design that provides efficient fuel flow from intake to exhaust.

Sporting laser-etched Speed Tuned graphics, the Speed R2101's machined head results in improved cooling and a lower center-of-gravity. Finally, a black-anodized carburetor makes it possible to run with richer fuel mixtures.

This package includes:

21M2(B) carburetor
RP7 Turbo glow plug
8.5 mm carb restrictor
Exhaust seal ring
taper collet

Note: The OS T-2080SC Tuned Silencer Set is required and is not included in this package.