Check your terminology. Crank arms are not that short. Spindles are but you can not just replace one side. Going to a longer spindle moves the rings out, not in.mikelikebike said:About to replace a 110 mm driveside crank arm with a 113 mm arm
Am I likely to run into any significant chain line issues bringing the crank/rings in 3mm? There are no clearance issues, as far as I can tell.
No. Arm length is one thing. BCD (or PCD) is usually expressed as two numbers with a slash, yes but the first number represents the outer/middle rings normally and the second number for the granny (if it's not a triple then there's usually only one bcd to mention). I'm guessing if you have a 94 you've got a 94/58. Try this http://www.sheldonbrown.com/gloss_bo-z.htmlmikelikebike said:Sorry again, I thought it was apparent this time what I meant. Arm length/bcd (175/94). No?