Quote:
Originally Posted by asid61
You're not doing that calculation correctly. Gear ratios are multiplied, not added, so if you stacked 4 stages you would get a 4.5 * 4.5 * 4.5 * 4.5:1 ratio, which is about 400:1. Using a chain reduction for the last stage would give you even more.
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Wow I don't know how I messed up so badly on that. I take back everything I said in that last post (except the thing about VPs not being rated for a CIM at 200:1). Yes, you should exceed a 200:1 ratio on the 4th stage. With the 60:12 chain reduction, you can do it in 3 stages. With the 50:1 VP reduction, you can do it in 2 stages. With both the 50:1 VP and 60:12 chain reduction, you can do it in one stage.