Established in 1992, Sumai Bicycle Co.,Ltd. is one of the biggest China diamondback bicycle manufacturer and wholesaler. We've gotten the WMI (World Manufacturer Identification) since 2005. Our company has perfect quality management systems with ISO9001 international quality authentication in 2002 and pays great attention to new product development. We have high-quality staff at design, oem diamondback bicycles development and production fields, and have introduced in qualified personnel from foreign bicycle enterprise. Most of our products have been approved with CE certificate, and some approved with EEC, EPA and CARB.

Fatigue-resistant chromoly frame provides a stable, lightweight platform; comfortable geometry is efficient and allows good visibility
Full fender kit keeps things simple, and keeps you and your bicycle clean
24-speed drivetrain delivers excellent performance and plenty of gearing options
Shimano Alivio 8-speed shifters produce immediate, reliable gearing changes
Tektro linear-pull brakes provide powerful speed control and reliable stopping power
Diamondback gel seat offers a soft ride that you'll appreciate whether you spend hours or minutes in the saddle
Includes commuter bell
Closeout
After its initial break-in period you might notice your bicycle performing less responsively than the day you brought it home. Not to worry, this is typical of all new bicycles and simply reflects that cables have stretched or their housings have seated themselves into final position. To keep running at peak performance, all REI bicycles come with a FREE warranty tune-up, which should be accomplished between the first 100-200 miles of riding or after the first two months if you're accumulating miles less quickly. Contact your nearest REI bicycle shop for details and an appointment for this important service.

The Mini Viper is the perfect bicycle for the little guy with big dreams of fun off-road rides. Its durable BMX-style high-tensile steel frame is easy to mount and dismount and its heavy-duty training wheels make learning to ride safe and easy. The Mini Viper has a coaster brake for excellent stopping power, too.
Very Strong, versatile frame. This is the perfect trail bicycle, it can do it all. All day rides, climbing (heavy though), downhilling, you name it. DBR had a winner with this one, not sure why they gave up on it. I think it wasn't cost effective. Marzocchi Jr T up front, Hayes discs, Stratos Helix Expert shock, Race Face cranks, post and stem.
Heavy Duty Steel Diamondback Frame/Fork
28 spoke aluminium wheels
Velo Padded Seat
JR. “Mushroom” Type Grips
MV1616

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