South Salem Cycleworks: Salem, Oregon
(503) 480-2001
email: michael@sscycleworks.com
 We have a huge stock of vintage and modern parts. Contact us!

11/20/2025: Dear Friends, I am currently in chemotherapy and unable to promptly answer emails or ship orders. I will do my best to take care of your needs, but hope you can be patient. Thank you all for your support.
Components - Quill fork steering tube sleeves, Quill fork to threadless stem adapter, Quill Extender

On this page:

Quill fork steering tube sleeve adapters: 1 1/8" to 1" adapter | 1 1/14" to 1" adapter

Quill fork to threadless stem adapter: 1" Threaded to Threadless 7cm Adapter | Origin8 1" quill to 1 1/8" threadless adapter | Delta 1" or 1 1/8" quill to 1 1/8" threadless adapter | Rockwerks 1" quill to 1 1/8" threadless adapter

Quill Extender: Cromoly Quill Extender

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The quill fork to threadless stem adapters convert a threaded quill setup to threadless.

1 1/8" to 1" Quill Sleeve steering tube adapter. New, $15.00/each

Part# 31003

Quill sleeve

1 1/4" to 1" Quill Sleeve steering tube adapter. New, $15.00/each

Part# 31004

Stem sleeve

1" Threaded to Threadless 7cm Adapter/Riser. New, $20.00/each

We have two in stock.

Side view

View from the top of the adapter.

Origin8 1" quill adapter to 1 1/8" threadless stem. New, $35.00

Part# 31234

  • Made for a 1" (22.2mm) internal diameter fork and a 1 1/8" (28.6mm) threadless stem.
  • Available in both black and silver. Pictures of both colors are below.

Origin 8 Quill Adapter

Here's a silver one. Mount this like a regular quill stem and you can use your threadless stem.

Quill adapter

And here's a black one.

Delta 1" or 1 1/8" quill adapter to 1 1/8" threadless stem. New, $35.00/each

Part# 31233

We have one in stock.

Delta adapter

The adapter will work on 1" steering tubes or with the sleeve on the right, on 1 1/8" steering tubes.

Delta threadless stem adapter

With the sleeve and ready for a 1 1/8" steering tube.

Threadless stem adapter

Looking at the top of the adapter and the allen bolt that tightens the adapter to the steering tube.

Rockwerks 1" quill adapter to 1 1/8" threadless stem. New , $25.00/each

Part# 31016

Rockwerk Threadless adapter

It's neat that someone came up with this solution to putting a threadless stem on a bike made for a quill stem.

Rockwerks stem adapter

Here it is rotated a bit.

Rockwerks adapter

And from the top.

SunLite CroMoly 1 1/8" x 8.2" Quill Riser. New, $20.00/each

Part# 31020

Front view

Back of the header card

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