O.S. Speed Max .21XZ-B Ver.II

$399.00

The MAX-21XZ-B Ver. II is for drivers who demand performance close to that of our flagship model, the O.S. SPEED 21XZ-B spec. II but at a more affordable price. Many top drivers around the world choose O.S., relying on the renowned linear acceleration to get the best power at the right time. We developed the MAX-21XZ-B Ver. II based on the O.S. SPEED 21XZ-B Spec. II but adopted a single-needle carburetor for easier adjustment. It has the same piston/liner and connecting rod from the flagship model, the O.S. SPEED version, in the new MAX-21XZ-B Ver. II. The crankshaft has the Tungsten counter weights similar to the O.S. SPEED, but without the ultimate DLC coating, offering superb value for money.

This engine comes with EBIS Break-in.

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Description

The newly developed 22B2 carburetor, which determines the high R.P.M. characteristics of MAX-21XZ-B Ver. II, gives first priority to ease of use. A 7mm diameter carburetor reducer is included as a standard accessory. The low, centre of gravity outer head is anodized in the traditional O.S. blue color.

This latest engine in the O.S. off-road range is the next step in O.S. market leadership by offering improved performance and technology at the right price.

SPECIFICATIONS
Displacement： 3.49cc 0.213cu.in
Bore: 16.27mm/ 0.641in.
Stroke: 16.8mm/ 0.661in.
Practical RPM: 4,000~42,000r.p.m.
Power Output: 2.65ps/33,000rpm /2.61hp/33,000rpm.
Weight: 355g/ 12.52oz.

Additional information

Weight 1.2 oz
Dimensions 10 × 5 × 8 in

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