31.8 mm Snap-On Bike Cable Guide
A cable-housing guide that snaps onto a 31.8 mm bike down tube (the C-clip wraps 220°) and is locked in place with a zip tie that runs in a 5 mm groove. It has three 22 mm-long channels: two 4.6 mm bores for 4 mm shift housing and one 5.6 mm bore for 5 mm brake housing. It replaces worn or missing brazed-on and moulded guides without frame-specific bosses, and you can set TUBE to 28.6 or 34.9 in the script for those tube sizes.
outdoor bike cable-guide frame-clamp