An old stud-wheel cable measuring 30" from the tip of the nipple in the short cable at the compensation lever end, to the top if the U-clip that attaches to the lever sticking from the back-plate. A new, almost certainly wire-wheel axle cable measured 28.5" here.

A 1" 'shortener' fitted between the nipple and the fitting on the end of the outer sheath at the compensation lever