what medium or long cage rear derailleur on piranha
Im trying to determine if I need a med on long cage rear derailleur for a 2010 piranha size 17.5. Ive read the difference and still Im having trouble deciding which one I need. I know long would work but as I understand it I would be better going with med if it will work shorter is better. right?
I think it comes with a long at least most of the hardtails used to.
My Kona came with a long and I replaced it with medium when it got scragged by a stick.
One link difference in the chain in my case and I don't notice much difference in available gearing, maybe a little.