Are you regretting your singlespeed purchase? Or do you have a set of 9-speed downtube shifters you’ve been dying to use but nowhere to put ‘em? Well, here’s your huckleberry. Problem Solvers clamp-on Downtube Shifter Mounts fit onto your, well, downtube and they have mounts for, well, shifters.
• For Shimano-style downtube shifters
• 31.8mm clamp with shims for 28.6mm tubes
• Forged aluminium