Adventure Cycle Bottom Bracket

Here's our Adventure Cycle bottom bracket.

• The chainstay bridge stiffens up the chainstays to provide a more secure ride. Note the integrated fender mount.
• The chainstays themselves have a larger diameter than traditional chainstays - adding both strength and stiffnest without adding weight.
• The downtube enters the bottom bracket off-set from the spindle, allowing better brazing and mitering for both the down tube and the seatmast.
• The seatmast flares out from its otherwise 28.6mm OD (outside diameter) to add further stiffness over traditional designs. The flare begins low enough as not to interfere with the placement of clamp-on front derailleurs.