20x2.10 std. comp. 62d ,60tpi,560gm., 24x2.35 Std. Compound 62D 60 tpi 890gm, 24x2.35 Traction comp. 52D,60TPI ,920gm I, 26x2.25 std. Comp. 62D ,60TPI, 990gm, 26x2.25 Traction Comp. 52D, 60TPI , 990 gm, 26x2.55 Dual Compound , 52/62D, 60TPI,1575gm