Clutch Adjuster Screw, for use on BSA models: B50. Triumph models: T25.O.E.M: 57-4189 / T4189Supplied: SinglesClutch Adjuster Screw: 57-4189 / T4198. GB21B / 27216SKU: 57-4189 / T4189£3.99PriceQuantity*Add to Cart