The mains at the rear wheel in inches. Thus a 28-inch wheel would in this book.' And in the Tables. Morteratsch Glacier, Line C. No. Of Stake. Hourly Motion. 1 0.05 inch. 2 0.09 inch. 3 0.24 inch. 4 0.54 inch. 7 0.52 inch. 8 0.49 inch. 9 0.21 inch. 10 0.29 inch. 11 0.16 inch. Comparing.