The stem is made of steel. It will fit a 1" handlebar. 4 1/2" from center of stem to center of handlebar clamp. We Will Make It Right! We are human and we can make mistakes. We will get back to you within 24 hrs (except on weekends).
Convert inside 1” threaded fork to 1-1/8” threadless stem. Black Adapter Bike Conversion Rod 1” 22.2mm > 28.6mm(1-1/8")Fit A-Head Stems. Fit for:Aluminum/Stainless Steel Adapter(optional).
Overall, a very nice Cinelli stem in excellent NOS condition. Cinelli Oyster 1" Quill Stem. Full Quill length: 117 mm. Quill length above minimum insertion: 80 mm. Clamp features the double pivot hinge for perfect locking.