Jeff Potter wrote
>
> I'm trying to change the biggest cog on a Regina Oro 5-sp
> freewheel to an even bigger cog. Right now I'm just trying to
> take the cogs off the freewheel [snip]
Sorry if this is obvious to you already, but the two largest cogs thread off from the back, position 5 first, then 4. They have left-hand threads. Actually there was another freewheel body, intended for straight blocks, where only the biggest cog goes off the back - you could have either of those.
Mark Bulgier
Seattle WA USA