If you like collecting data on your rides, then the PowerTap G3 Rear Disc Hub is for you. The G3 hub replaces your rear hub and connects via Bluetooth Smart or ANT+ to feed your data to whatever device you want to connect. Compatible with 12×142-millimeter thru axles or 135-millimeter quick releases, the hub comes in 24 hole and 28 hole options. The updated PowerTap hub now has six pawls for ultra fast engagement and only weighs 350 grams. Suggested for bikes with 160-millimeter rotors.

The PowerTap G3 Rear Disc Hub is valued at $800.

About PowerTap By Saris

Saris has been building bike products since 1989, and they have built them to last. Employing a passionate team of bikers, the products are used by the same people who produce and sell them. Not one to stop at simply selling product, Saris is also involved in bike advocacy, using their resources to enhance biking on a local, state and national level.

About 31 Days of Giveaways:

Summer is behind us and many people are turning towards skiing or snowboarding, hanging up the bike for months on end. To make sure you don’t forget biking altogether, over 31 days we are giving away prizes from some of the best brands in the bike industry. Register only for your favorite products, or register every day—your chances of winning are refreshed each morning. Check back daily for a run down on what’s up for grabs, and don’t forget about your bike while the mountains are white.