Vapor speedo drive

[jason frost]

Came up this idea yesterday.
Drill out the speedo cap nut so the wire can pass though, needed to use a bit of pastic pipe as a spacer

looks like this when to together

and fitted


just need to mount the magnet on the hub but its dinner time now so will post pictures later when its done.

[jason frost]

Just ended up drilling into the drive and gluing in the magnet

[jason frost]

Hub fitted

and the other end

[jason frost]

excellent idea, had chance to test it yet?

Not yet thats down to Jackpot

[camel]

im running a mountain bike one from my rear wheel,i take it you have to program in the diameter of the magnets..i would imagine it may be difficult to calibrate your diam being such a small diameter,and any error would be greatly magnified...but im sure its possible...fab idea tho and looks very neat..hope it works

[shocky]

im running a mountain bike one from my rear wheel,i take it you have to program in the diameter of the magnets..i would imagine it may be difficult to calibrate your diam being such a small diameter,and any error would be greatly magnified...but im sure its possible...fab idea tho and looks very neat..hope it works

the diameter would be the rolling road diameter of the tyre not the speedo drive were the magnet is mounted a bit like the way final drive is worked out on a gear box

[camel]

very true....my mistake

[CANbus]

Great idea Jason, are you able to advise about mounting of the display in the head set, how you do it? What's the visibility of the display like in sunlight, and darkness?

[twin]

yes i allso wud like to no how u mounted yours,and the frame its set into,
it looks spot on,i must say

[sugarlump]

I just did the same on a px disc hub this weekend, great minds etc . Great thing is it removes the problem of the magnet moving with suspension compression. Tapped the speedo drive holding plate (bloody imperial 7/16 thread though) and drilled the worm drive for the magnet too. Works with me spinning it so far - 7mph!