Tumbleweed Big Dipper Drop Handle Bar

The Big Dipper is Tumbleweed's newest handlebar, and it’s been a long time coming. They've ridden countless drop bars off-road on many different bikes, and the design for the Big Dipper comes from all the things they wanted from the other bars we’ve tried. It’s wide with a gentle back sweep, a short reach and shallow drop. It’s comfortable in a variety of riding positions, we recommend setting this bar up level with your saddle or higher for maximum touring enjoyment. They have tested the Big Dipper for off-road use (ISO 4210 mountain bike strength/fatigue testing), so it’s strong and light for its width. 

If you’re swapping this bar from a narrower one you may need to shorten your stem length by 1-2cm.

Specs

• Material: Triple-butted, heat-treated 7000 series aluminum alloy, ISO 4210 tested for mountain bike use
• Widths: 51cm, 54cm, 57cm C-C at the hoods
• Clamp Diameter: 31.8mm
• Backsweep: 5°
• Flare: 20°
• Drop: 109mm
• Reach: 50mm (overall reach from center of clamping area to center of tube at front of forward sweep)
• Average weight: 385 grams
• Finish: Bead blasted black finish, polished silver