nate7723 (guest) View all posts in this topic  
Sat Feb 11, 2012 6:04 am
There was some discussion about this a year ago        

Here's the link, and a relevant quote


Posted: 21 Feb 2011 09:46

Here's what I came up with:

The speedometer hub gear ratio is 23:9; For every 23 turns of the front wheel the speedo cable turns 9 times.

The first gear set inside the speedo head has a ratio of 10:1; for every 10 turns of the speedo cable the cross shaft spins 1 time.

The second gear set has a ratio of 16:1, so every 16 turns of the cross shaft turns the longitudinal shaft 1 time.

The last gear set ratio is 14:1; every 14 rotations of the longitudinal shaft turns the 10ths wheel of the odometer 1 time.

If you do the math, the overall ratio between the wheel and odometer is (14*16*10*9)/23, or ~876.5:1.

 Post a Response | Reply with quote | Return To Forum 
View next topic View previous topic

Powered by phpBB © 2001, 2005 phpBB Group