The Delphi is an excellent cycle computer. It is the complete opposite to the terrible line of VDO computers I recently tried. Accuracy is exceptional and the display unit never loses lock with the transmitter. Setup is very easy and I found the display well laid out. The display is also easily read and the backlight is strong enough to actually be useful. I have only been out in light rain, but there were zero problems from moisture. My only small complaint is the mounting for the computer. It is fine for both regular and oversized bars, but it will not work on winged road bars. As wings seem to increase it would make better sense for a stem mount. All in all a great product for the money.

5 stars

Never buy this product!!! If you need the second bike option, they will charge you 35 + s/H. If your budies buy the same product you won't be able to ride with them without cross talk. And if you have a warranty issue don't call Blackburn, because they are not helping like they used to do. Buy polar or something else with customer service that delivers. This on is only going to get you frustrated every time.
Product is good, if you don't have a warranty issue or if you don't have any friends who bought this also. If you talk to someone, please tell them the product is horrible, because if they buy this it will cross talk to yours or mine.
1 star

it's just what i needed...not too much info and easy enough that i could install it myself. 5 stars

I was looking for a simple, and accurate unit that didn't have too many wires or looked clumsy. The fitment and quality are what you expect and more. I highly recommend it to anyone. Not sure I'll need the cadence computer, but it was nice I had the option not to install it.

PL 5 stars

This computer stores all the data that I need. my only complaint is the lap chronograph feature. You can't comtinue in a paticular lap mode once it stops. Other than that this a very good piece of equipment.Blackburn Delphi 4.0 Bicycle Cyclometer 4 stars