|anyone use an alum alloy cog?||DougSloan|
Jan 13, 2004 2:38 PM
|I see you can get an aluminum alloy cog made by EAI from Business Cycles ( http://www.businesscycles.com/trcomp.htm#cogs ). Anyone use one? How would this hold up with a 1/8" chain?
|why would you pay extra for an alu alloy cog, being that||gspot|
Jan 13, 2004 3:03 PM
|alu wears out much faster? to save a few grams? ha. I laugh at that, on a fixie.
Is it worth it? really? in the end?
Jan 13, 2004 3:14 PM
Jan 13, 2004 3:42 PM
|They'd certainly wear better than alloy 3/32" cogs, but it still seems a bit of a stretch that you'd really gain anything by losing a few grams of non-rotating weight (ok, it rotates, but you know what I mean...) and it would wear much faster than steel. I'm sure a lot of the sponsored guys use them, much as the sponsored pro road teams use Al/Ti cassettes, but they usually don't pay for them. The good news is if you raced with your wallet it would be lighter if you bought the cog!|
|Check this out..||joe friday|
Jan 13, 2004 4:27 PM
|all these parts were put on new and have prolly 400 miles
on 'em-- of the three, the alloy cog (zeus 19t) shows the least wear. it's got a grey rough texture, so maybe it's hard annodized? Anyway, i've read great things about the EAI
cogs, but because of minute chainline differences, i'm going to use a steel Dura-Ace cog for a bump up in gearing.