High Quality Reproduction (UK Made) Bultaco Sherpa/Alpina Snailcam adjusters (PAIR) CNC Machined in Aluminium Alloy to the exact proportions of the original oem items. Same as Bultaco Part # 122.05-016 Except ours are handed and have engraving one side only. Bored for a 17mm Axle. Please also see our 12mm and 15mm Hole variants of this part. Can also be used as a generic snailcam adjuster for pre65 etc.