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• #2
Not a clue but this dude is doing bolt-on cogs..
http://www.velosolo.co.uk/intro.html -
• #3
It's for the front, not the back. I'm trying to run a large cog on the granny ring holes on my cranks.
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• #4
cog = rear
sprocket or chainring = frontNow that we've cleared that up..
http://weightweenies.starbike.com/forum/viewtopic.php?t=53514&view=previous
"The biggest 64 BCD chainring specialites-ta makes is a 30T"http://www.socaltrailriders.org/forum/workshop/17792-30t-chainring.html
Middleburn appear to do 'em..
http://www.mtbtandems.com/Middleburn.html
Does anyone know if it's possible to get 4 bolt cogs that have a 64 bcd and come in a 30/32 tooth or bigger?