- Please check the diameter of your current stem before buying,
- the size should be marked on the bottom half of your stem
- BRAND NEW Alloy Quill to A-Head Adaptor.
- The top of the quill is 28.6mm diameter , you clamp an oversize ahead stem around this part.
An easy way to convert your older style quill stem frame over to A-Head stem design.
Choose from
22.2 mm (7/8 inch) quill frame hole over to a 28.6mm (1 1/8 inch) A-Head stem.
- or 25.4 mm (1 inch) quill frame hole over to a 28.6mm (1 1/8 inch) A-Head stem
- most steel frames require 22.2mm, most alloy frames require 25.4mm , but please check your bike before ordering
Total length of the quill is 155mm