By HI SIBLEY

There's no need to put your bike away when the snow starts flying and ice freezes over your favorite fishing pond. Instead you can head for the pond with your bike and make the skaters look like they are moving in slow motion.

There is only one simple alteration to your bicycle required to assemble this speedy sporster. Simply remove the front wheel and substitute a steel runner with welded legs (your dad's garage mechanic will probably weld the front runner for you). For the rear tire, obtain two cowhide straps cut to proper lengths and taper the ends for lap joints. Cement the joint after you install the studs in the outer strap.

Studs are galvanized roofing nails cut so that the points protrude from the outer strap about ³/16" as illustrated. The inner strap protects your tire. Bind into position by taping each pair of slightly staggered points.

Make the front runner from a piece of hardwood such as oak. If you can find a piece of angle iron to fasten to the bottom of the runner, the life of your runner can be extended considerably, and you can enjoy many hours on the ice.