Upgrade your bike with confidence using this Quill to Ahead Stem Adaptor, designed specifically to convert older 1" threaded fork steerers to accept modern 1 1/8" Ahead stems.
This adaptor is ideal for riders modernising classic road bikes, MTBs, or commuters—allowing you to run a wider range of stems and handlebars without replacing your fork.
🔄 1" Threaded Fork → 1 1/8" Ahead Stem Conversion
Enables compatibility with modern Ahead stems on older bikes
📏 Correct Quill Size: 22.2mm (IMPORTANT)
The quill section that inserts into the fork steerer is 22.2mm diameter, which is the standard internal diameter for 1" forks
💪 Lightweight Aluminium Construction
Strong, durable, and corrosion-resistant without unnecessary weight
📐 150mm Steerer Length
Provides ample height adjustment for dialling in your riding position
🎨 Black Finish
Clean, subtle look to suit any bike build
✔ Fits: 1" threaded fork steerers ONLY
✔ Quill Insert Diameter: 22.2mm (this is the critical measurement)
✔ Compatible Stem Size: 1 1/8" Ahead stems (28.6mm clamp)
📌 Typical 1" Fork Dimensions:
❌ Will NOT fit:
If unsure, measure the internal diameter of your fork steerer – it must be 22.2mm for this adaptor to fit correctly.
Perfect for:
🚚 Free UK Delivery – fast dispatch from our Yorkshire shop
🔧 Expert Knowledge – speak directly to experienced cyclists
👨👩👦 Family-Run Business – trusted, personal service
📞 Real Support – help with compatibility before you buy
🌐 www.hopkinsoncycles.com
📍 Queen Street, Horbury, Wakefield, WF4 6LP
📧 info@hopkinsoncycles.com
📞 01924 274209