Thread: L (mm) for 20 inch X 1.10 for Cyclocomputer
View Single Post
Old 02-26-12 | 04:59 PM
  #8  
jur
Senior Member
 
Joined: May 2005
Posts: 7,393
Likes: 10
From: Albany, WA
Usually a close calculation (1%) is to take twice the tyre width and add that to the ETRTO diameter:

406 + 2 * 28 = 462; L = 426*pi = 1451mm.
jur is offline  
Reply
0