Chain rings

[baron von greenback]

I noticed chain rings have diffrent amounts of teeth now does this make a diffrence with what they work with ie type of derailieurs bifters etc now i am not riding in anger so i hopeing it doesnt matter as long as they fit the crank 110 etc thanks

 

[ishaw]

It can matter in terms of ratio. You wouldn't want a 48t outer with a low tooth count middle as the jump would be nasty. In terms of fit, a 110 BCD ring will fit a 110bcd spider, 5 arm of course as there is now a 4 arm 110bcd and even differences in that masking them incompatible with each other.

 

[baron von greenback]

Cheers mate i made sure i had the right 5 holes for my cranks but not the teeth i have to count mine and go from there any ideas on what would make it nasty from the 3 rings the amount you wouldnt go below like 48 for the top and 30 for middle and 20 for granny example like a drop of 15 teeth from each ring if that makes sense cheers