Your LBS probably stocks Cateye products. The Strada is a nice unit: available in wired ($39), wireless ($59), and wireless w/cadence ($80?) versions. You can buy replacement parts (magnet, sensor, mount, etc) at the dealer or thru Cateye. I have two wireless models - one mounted on the bar, the other on the stem. The bracket can be removed and remounted in less than a minute without tools and without cutting cable ties. Some people have commented that the numbers could be larger, though I haven't had an issue with less than 20/20 vision. There is no backlight.