Here I am a Kiwi in the Netherlands with a little dutch bike project underway.

The internal of the steerer tube is 19.3mm (give or take) so I am unable to put a 1" - 1" 1/4 (32mm Handlebar diameter) stem adapter into the steerer tube.

I think my best bet is to find a stem to bolt on the 22mm (outside diameter) to 32mm handlebar. (Maybe a shim in needed.)

Any suggestions and help with companies or suppliers making this product would be much appreciated.

p.s Welder/Fabricator fitter turner by trade but living in a different company not working in my field very unfortunitly.

Steerer dimensions.

  • Inside diameter: 19mm
  • Outside diameter: 22mm
  • Handlebar dimension: 32mm
  • Part needed = 22mm-32mm stem.

Much appreciated guys.

closed as unclear what you're asking by Criggie Feb 12 at 19:10

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • What's your exact question -ie, what are you asking? How to fit a non-standard sized stem around a steerer? But you're talking about the ID of the steerer tube not the OD, which makes me wonder if you're fitting an old style quill stem into a modern threadless steerer. Adding a photo of your parts and what doesn't fit, could be of benefit to the question. – Criggie Feb 5 at 8:34
  • 1
    I am in need or a stem with odd size's. | It need to fit onto the steerer with OD of 22mm/0.87in and handle bars 32mm/tungsten carbide cutters. I am not sure its possible to get a quill stem for the internal measurement of the steerer which is 19mm. I can upload photos tomorrow if this is to hard to image :D – Kris Beer Feb 5 at 20:08
  • OK - the 31.8mm OD of your bar's clamp area is a modern standard. That's fine. But I cannot find a steerer OD near 22 mm. Photos would be helpful please. I'm guessing its a smaller/older kid's fork being mated to a modern handlebar, and have a vague suspicion that a quill-to-threadless adapter may appear in the final answer. This is a great question btw. – Criggie Feb 6 at 1:32
  • Correct mate! The handle bar end is the easy part, The steerer not so easy!! Its a very old dutch bike probably from the 50s/60s and ya was given modern straight bars. Im also thinking about over sised + shim... Yeah i dont think to many people play around with bikes here. Bikes are just bikes for them and its cheaper just to buy one ect but im a practical kiwi who loves a project and its find of based of the idea of a fixie but not hahaha. strip the bike,remove excess brackets ect,paint and custom. – Kris Beer Feb 6 at 6:46
  • more photos please? Question risks being closed without further info. – Criggie Feb 9 at 5:51