Seldén System 22 Pinstop Racing track provides finer traveller adjustment than the standard pinstop version. The black-anodised track is 22 mm wide by 13 mm high and uses M5 fasteners on 100 mm centres, with pinstop locations spaced at 25 mm intervals for more precise headsail lead adjustment. This MLMR listing covers the racing-track range from 300 mm to 1000 mm; Seldén reference 442-004-01 identifies the 300 mm version. Use with compatible System 22 pinstop traveller cars and matching end fittings.