bicycle speedo as cheap IMO?
 

Howdy,
I was wondering if anyone has used a bicycle computer as a cheap alternative to an IMO and could recommend a brand. I've looked at a couple but it seems the max. speed doesn't go much above 100 km, 65 miles.

My problem is my bike odo is in miles and, being from a metric-enhanced country, I find it easier to work in kms. I thought a MTB speedo might be the answer, but no luck yet.

Cheers

Sigma is a great band and they go to 200km/h
Greg

Yep I have used a Sigma on a XR600, had to lengthen the wires to the pickup unit due to the long travel suspension on the XR. Also had to use a stronger magnet glued to the disc side as the original doesnt fit well on motorbike spokes and I could not get it close enough to the pick up to get a consistent reading. It would work for a while then stop, this mainly ocurred during off-road use. But bigger magnet glued to disc side works a treat now.

Skillo

cheers guys, I'll give the sigma a go.

If you source the ones that go up higher enough speed (not all do) you can get one that covers two wheel sizes (for say road & MTB) and set for Kms on one wheel size, and Miles on other (running total will be effected swapping between two of course)
Obviously....don't try for a wireless one !
Sigma are excellent

Try Trail Tech in the U.S. They make them specifically for Mototcycles.

I've used the Sigma 800 on my Bandit for many thousands of miles with no problems. I bought "rare earth" magnets at an electronics store for less than a dollar and glued them to the front rim with epoxy. I used a nylon tie-wrap to hold the sensor to the fork. By stacking the magnets I got the right gap. The unit was easily calibrated using GPS. Sigma offers a sensor designed to be used on stationary bikes. It has an extra long wire so you don't need to splice the stock sensor.
The whole deal cost less than 30.00 USD.