sorry, another of these threads.
i have a a Gunnar Rockhound frame (415mm chainstays) with vertical dropouts and and a Paul Word hub. it's geared at 32/18, which is a bit spinny even for a noob like me. i also have a new 1/8" bmx chain (KMC 710 "kool") because i don't trust those flimsy race chains. i can never get the tension just right. currently, i took the shouldered centering washers off the hub bolts and i am running the axle slightly below the center of the dropout.
i am considering two options:
1. add a half-link to the chain (i have one in my toolbox) and put a chain tensioner on it. i can get a tensioner from my LBS for $20.
2. get a 17t freewheel, which would bring my gearing up a bit and should fit just about right according to my calculations on this site: http://eehouse.org/fixin/javafmu.php
the problem with (2) is that, once the chain starts to stretch, it will be loose and i will have to buy a new chain again or get a tensioner anyways. but i want that higher ratio at some point, might as well start now.
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Thread: chain tension options