 The new 250 cc engine produced 25 per cent more power than the older 269 cc engine.In 1926 Villiers introduced an even smaller engine, the 125 cc with twin exhaust ports and side-mounted carburettor, and in 1927 they introduced the 344 cc twin 2-stroke.Villiers were to go on to produce a wide range of single and twin cylinder 2-strokes primarily for motorcycle use.