I bought a new wheel with a 1/8 chainring already on it. My setup is 3/32, so I got a 3/32 cog and borrowed the tool to get the lock ring off. However, now I need to take off the 1/8 cog, which, I hear, is usually done by pedaling backwards with the lock ring removed. Obviously I can't do that with my 3/32 chain, and I don't have access to a bike with a 1/8 setup. Is there any other way to remove the 1/8 cog short of stopping people in the street and asking to borrow their 1/8 setup?