Bicycle Mechanics - Replacing FSA 9spd middle chainring with 10spd one

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swingerfunky
09-30-10, 01:40 PM
Hi All, I did a search and could not find a diffinitive answer to this.

Here's my problem: I left the chain on my commuter too long and I have slightly worn out the chainring (slight shark toothing present and a slight creaking when pedaling). I have already replaced the cassette and chain. It appears FSA no longer sells 9sd 39t middle chainrings. My question is: Will this one (http://www.bikeman.com/CR2028.html) work instead? And if so is there a difference in distance from the outer chainring, meaning, will I need to use spacers between them? Thanks in advance!!


fietsbob
09-30-10, 02:35 PM
probably., The teeth may be slightly thinner but still 1/2" pitch.
any 130 BCD chainring will do, even one for a double
shifting pins are a convenience not a nessesity..

You Might even find one of Surly's Stainless ones OK seem to be in 42t at present,http://www.bikeman.com/CR0063.html, You might even find a steel spare for a cheap Shimano 130 triple in that 39t.. steel will outwear aluminum..

wunderkind
09-30-10, 05:04 PM
My Ultegra 6700 works for both 9 & 10 spd chain. And I bet it would too for 8 spds.