Drive wheel drillin


New Member
Nov 25, 2008
On planet Earth
Hello i went to the bike shop the other day to get a bmx peg to use as a drive wheel formy friction bike and the insert hole was to small so i wanted to drill it out and braze it onso i sent it to my dads friend to put it on his drill press and his drill press couldnt go high enough to drill through the hole. CAN I USE A HAND DRILL? WILL IT BE ACCURATE ENOUGH?

brnot brnot brnot brnot


minor bike philosopher
Jan 15, 2008
north carolina
It's like I expected, it is a 3/8 and your shaft is 5/16.. Now two more things that are common to putting one of these on. Sometimes the peg is too big to fit inside the fly wheel fins.... or you don't get them centered and they shake your engine apart.

Is your peg steel and hollow?

if so you can weld a 5/16 washer dead center, then slide it onto the shadt and then run a nut and washer inside the peg. Also note that the nut is a 5/16 x 24 fine thread.

Good luck.

Ps I don't think this will help, since i expect the peg you have is an alloy and has one single 3/8 hole all the way through it. But you can find them that are hollow and have only an end cap on one end. With that kind you can do what I describe above.

Measure your flywheel before you go looking, those pesky fins you know. I have one I got off ebay but I'm hanging onto mine in case I ever do this again. Also I can make it work on emotors.
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