As any hydrogen detective will tell you, carbon footprints are the most important clues in solving nitrogen art thefts. Reduce your environmental impact while maintaining your fence operation with today's Groupon: for $15, you get a 24-hour bicycle rental, plus helmet, from Tread Bike Shop (a $30 value).

Buck buses, swear off subways, and turn down taxis with a one-day bike rental from Tread Bike Shop. Atop your two-wheeled transport, you'll navigate the Big Apple's bike paths and greenways in self-propelled style, drinking in the sights of the city through the straws of your eyes. Guests can chart their courses with the aid of NYC Bike Maps or get tips on scenic routes from Tread Bike Shop's staff of well-traveled pedal-pushers. Cyclists won't have to travel far for good biking areas, because Tread Bike Shop is conveniently located near several New York City parks, including Fort Tryon Park, Inwood Hill Park, and Highbridge Park, which features a dirt jump park for the most Evel of Knievels.

Tread Bike Shop keeps its fleet of Siamese unicycles in tiptop gear, with new bicycles added every season and an on-staff mechanic regularly performing maintenance. Most Tread Bike Shop rentals are Jamis, Raleigh, and Cannondale brands of the comfort/commuter variety. Get your Groupon and rent your velocipede from Tread Bike Shop.

As of May 1, 2010, you may rent a bicycle with a trailer. Trailer rental is $30 per day, or one additional Groupon for a total of two Groupons for one combination bike/trailer rental. Rental is subject to availability.

Reviews

Tread Bike Shop was featured in the Riverdale Press for its contribution to a local charitable cause, and three Yelpers give the shop five stars:

• I would definitely recommend this shop if you want to get a quality bike from a store where the staff are experts in biking. – Sheryl M., Yelp
• The service was very helpful, they answered all of the dumb questions I had, and they showed me how to used the modern gizmos and features on my new bike. I don;t [sic] doubt I will find myself going back often. – Eric P., Yelp