CONVERSIONS

The Box One 31.8 shifter clamp is an accessory that converts any Box shifter to be compatible with modern drop-handlebars found on gravel, cyclocross, and commuter bikesHinged clamp design is easy to install without having to remove grips or tapeCompatible with all Box shifters as well as some other brands31.8mm clamp only, shifter or brake not includedShifter ClampBlk

 Perfect for mounting downtube shifters on bikes with no braze-ons Machined alloy construction Fits frame tubes 28.6 (1-1/8`) to 31.8 (1-1/4`) (w/ shim) Black anodized finish

 Downtube shifter adapter lets you install downtube shifters on frames without braze ons Fits 31.8mm downtubes or 28.6mm with included shim Finished in brilliantly polished silver Does not included any cable guides  Downtube Adapter Silver