Old 12-29-16 | 01:24 PM
  #11  
fietsbob
Banned
 
Joined: Jun 2010
Posts: 43,586
Likes: 1,380
From: NW,Oregon Coast

Bikes: 8

Back when there were cog boards for Freewheels ,
Shimano made a plastic gage to count the teeth by the scale of diameter change with every tooth , rather than counting them.
fietsbob is offline  
Reply