The new PROTO Baby SCS OS is the first 3 tall Baby SCS that is built to accept 1-3/8 (Oversized) handlebar columns used in many aluminium and titanium handlebars or 1-1/4 (Standard) handlebars using the included adapter shim.

The Baby SCS OS also utilizes all of the same advanced features of the of the Sentinel SCS including: 8mm Low Profile Bolts (6mm Allen), Offset Slot and a Spreader Bolt. This is Proto’s most compatible and advanced Baby SCS to date!