Originally Posted by
Saberhead
Let me get this straight (forgive me as I said before Im new to bike mechanic/terminology so Im not quite sure); I dont have a conversion, its an IRO with all IRO stock, and Im pretty sure Formula hubs/Velocitys. We got the lock ring off, but the cog wouldnt come off..so am I way off on what you were saying? Do I have a cog thats locktited and with a lockring? Now Im confused lol
He was applying a lot of pressure trying to get the cog off but after 15 mins of trying he said he didnt want to ruin anything and wasnt sure what the deal was.
Saber - I have an IRO Angus too, and I swapped out my 17 for a 19 also; I like to spin. I could not get the stock cog off of mine with a chainwhip either. My chainwhip doubles as a pedal wrench so I am not getting a whole lot of leverage, and I am sure that when Tony or whoever wrenched that thing on had one of the longer, shop quality tools that would really let you put a lot more force on that cog.
Rotafix
Do this backwards; it worked, and I was worried I was going to break something. But the cog came off and I am spinning everywhere now. If using this method, don't over-do it when tightening the cog. Also put a rag over the bottom bracket to keep the chain from eating the finish.
Then tighten the cog. Tighten the lockring. Ride your bike fast. Tighten the lockring. Repeat.