Sonoma Men's Chainless Drive Evolution Urban Commuter Bicycle

Sonoma's Chainless D-Drive System

It's the low-maintenance chainless design that really stands out, however. Powering the newest trend in chainless bicycling, the chainless D-Drive system replaces the parts of a bike that cause the most problems--the chain and derailleur. In their place, the D-Drive system uses a drive shaft with a fully enclosed bevel gear system to transmit power from the bike pedals to the rear wheel. Shimano internal gears within the rear wheel help the system run smoothly and quietly while optimizing pedal efficiency. At the same time, the Shimano "twist and go" gear system is responsive and easy to use, so you can shift with the flick of a finger.

 

The chainless D-Drive system offers a number of benefits over traditional chain bikes. In addition to delivering a much quieter ride, it keeps you from ruining your favorite clothes while riding to work or getting grease all over your hands while fixing a slipped chain. The D-Drive system is also protected from external elements, so it doesn't require the ongoing cleaning, lubrication, and checkups that a chain-drive bike typically requires. And the internal drive shaft is less likely to sustain damage from falls and road debris, giving it a significantly longer life than a chain. In fact, the D-Drive system carries a warranty that lasts for the life of your bike. Once you experience Sonoma's exclusive D-Drive chainless system, you may never want to ride a chain-driven bicycle again.

 

Other features include a handy carrying rack for running errands, 700c Kenda commuting tires, front and rear alloy V-brakes, and plastic platform pedals. Best of all, everything on the bike is backed by either a two-year or lifetime warranty. A smart choice whether you're rushing to the office or taking a relaxing weekend spin, the Urban Commuter comes in a smoky obsidian color.