Searching the forums I found one old program that was built to run under WinNT (yikes!). Wonder if anyone knew of some more modern program (or web app).
Searching the forums I found one old program that was built to run under WinNT (yikes!). Wonder if anyone knew of some more modern program (or web app).
There probably aren't many because there aren't many reasons to have one. The normal methods for determining chain length (Shimano, Campagnolo, and SRAM instructions and any mechanic's handbook all have them detailed) are less work than trying to make the input measurements needed for a program accurate enough.
You don't need a computer program, you can do it trial and error; big/big plus 2links (1") minimum.
Or you can do it using some simple math, 2x the on-center distance from cranks to rear axle, plus 1/2 the sum of the biggest chainring and rear sprocket, plus 2-4 links (1-1/2 - 2"), depending on rounding. Go high range if there's a large difference in the sprocket sizes, and low range if not.
I used this one, and then checked it by useing the big-big chain ring method. The results were the same.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Road Bike, Cycling Forums
5.4M posts
205K members
Since 1990
A forum community dedicated to Road Bike owners and enthusiasts. Come join the discussion about bike parts, components, deals, performance, modifications, classifieds, troubleshooting, maintenance, and more!