Mark Koepke asks "...I have a couple of old 5-speed freewheels and a pile of extra cogs. I want to change them out. I have a couple of chain whips and have been able to either remove all but the third from the smallest of the second from the largest. Then I get stuck! How to keep the freewheel body snug while removing that last one. Hmmmm? This is a real dilemma for me, it seems. Help please................?
You use a chain whip to thread off a cog on one side using a chain whip on a cog on the opposing side . Then you thread on the desired cogs on that side. Then you use one of them as an opposing cog with a chain whip to thread off the cogs on the other side after which you will thread onlY the cogs you want. In other words, you use chain whips to get them all off, but only one side at a time comes off. This is what makes vintage bikes interesting...
If desired, you use a Regina freewheel 'threaded' vise to hold the freewheel body to remove a final cog since you will not have any cogs on the opposing side for a chainwhip. This vise is available on closeout for $3 from biketoolsetc.com listed as "VAR Freewheel Body Vise for Regina Freewheels." Uually you don't need to remove all cogs at one time since you are threading on your desired cogs on one side and then the other. .......... Peter Brueggeman La Jolla California USA 4peebee(at)peterbrueggeman.com