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Made of lightweight, heat-treated aluminum, THINstem is a safe, simple quick-release folding stem replacement of your existing handlebar stem. Available to fit two handlebar sizes: 25.4mm (1") handlebars or 31.8mm (1.25") oversize handlebars. Length is 70mm (2.75") or 90mm (3.5"). Patented technology. Combine with folding pedals for the ultimate in THIN portability.
Watch THINstem (1.25" x 70mm) in action: https://youtu.be/RWMRWnpfRU8
To install THINstem on older threaded forks and headsets add an Alloy Quill Stem Adaptor.