VELOCOMP iBike Dash CC Cycling Computer in GPS Fitness | JR.com

Convert your iPhone or iPod touch into a revolutionary cycling computer / Real-time GPS maps and map routes / Up to 6,000,000 miles of ride data storage
Convert your iPhone or iPod touch into a revolutionary cycling computer. Not only will it point you in the right direction with GPS. But it will also be collecting Data (up to 6,000,000 miles of ride data), so you can Monitor your productivity. Great for the casual rider to the Professional cyclist.