what is best for megarange freewheel: oversized pulley or long cage and why? or both
(i search for low end shimano)
the why is important.
here is and explanation i found for the use of big pulley but why would the big pulley be in the end and not in the middle?
..megarange is large difference in size requires a large derailleur pulley, to make sure that the chain has cleared the teeth on the last cog, in order to shift into this gear.
If you use a smaller pulley on the derailleur, you may be able to get it to shif buy pressure one the 34t cog.