Originally Posted by Metacortex

You need pedals with a spindle incorporating a 1/2" diameter 20tpi threaded end. There are several that will fit as shown here.



That adapter will not fit your existing fork without modification. It is intended for 1" threaded forks with a larger ID requiring a more standard 22.2mm (0.875") diameter stem, while your 1" threaded fork uses a thicker steer tube that has a smaller ID requiring a thinner 21.15mm (0.833") stem. If you get an adapter like that you will need to have it turned down to the smaller diameter by a machine shop as described here.



Your existing crank is forged steel and easily strong enough to handle these. The problem is that they will extend the pedals out by about 1/2" on each side, which will decrease the cornering clearance before pedal strike. The wider pedal position (larger "Q factor") may also feel awkward. I'd also say that they are heavy, but that isn't a concern on a Varsity. <g> The good thing is that any 9/16" spindle pedals you use with them could then be re-used directly when or if you ever change to a 3-piece crank.