One thing to watch out for is the differance in the "reading speed" .
Some are made for speed events like road racing and others are for mountain bikes and MX applicationd. The differance is the reading / transmitting speed of the units.
Is it definate that the MX units mentioned above were the TranX260 model? as they are generally dearer due to being more advanced than the slower reading / transmitting models.
Just a thought. Paul.
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