O.S. FS91 Surpass II OS L-OS35920 honed to perfection in this latest model.
Like its 52, 70 and 120 stablemates, the new FS 91 Surpass II features a new carburettor, longer crankshaft, plated camshaft/crankshaft/ ring and assure its owner of the best performance in its class coupled to the O.S. legendary quality and long life.
This is a great engine for scale models that specify a 61 size two stroke as that four-stroke sound is particularly suited to this environment.
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