Triumph Cub Close Ratio Gear Set. Layshaft, Mainshaft and Gears. 1st gear(L29 M16) 2nd gear(L20 M25) 3rd Gear(L25 M20) 4th gear(L18 M27).

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Please research part number for specifications to ensure this will work for your vehicle's make, model and year.  Years and models stated are given as a range and may or may not include all years within the range.  Some NOS parts show normal shelf wear from age.