Kickstart Return Spring, for use on BSA models; B50 & Triumph models: TR5MX, TR25 & T20.O.E.M: 57-4338 / T4338BSA B50 & TR25 Kickstart Return Spring: 57-4338 / T4338. 26354SKU: 57-4338 / T4338£7.99PriceQuantity*Add to Cart