OS O.S. MAX 28XZ

Purpose designed from the outset to be raced in 'Truggies'. The extra capacity over a .21 ensures maximum punch out of the corners and with 3.31PS she is no slouch down the straights either! The 'racing' nature and increased capacity of this engine requires a slightly bigger flywheel than a .21. Carburation is courtesy of a smooth and responsive slide carburettor and an SG style crankshaft is standard. Requires the O.S. 'T' style glowplug.