I have one on a road bike that is "radio" signal so it can have some "stuff"
slightly in the way but not much and the distance can't be more than about
30" from sender to head unit.

Bob Stevens

http://groups.msn.com/BobsPhotoShare
http://groups.yahoo.com/group/tiico

On Thursday 06 November 2003 05:53 pm, Mark Tuovinen wrote:
 > Some of the bike tachs are wireless,but you are still limited to a
certain
 > distance from the sender on the wheel.

I think the wireless ones might be infrared, so you have to have a clear
line-of-sight between the sender and the head.

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