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Profile Design Stem Convertor 1 inch Quill to 1 1/8 inch Threadless

Customer Reviews (2)
4.5 / 5| Write your review
Product Reviews (2)
Questions & Answers (1) Q & A
- Threadless conversion for threaded forks allowing a larger range of modern stems to be fitted to older bikes
- Converts a 1 inch quill bike to accept 1 1/8 inch threadless stems
- Aluminium body, steel bolt
- Weight: 160 grams
- Total length = 135mm, 42mm at the top is for fitting 28.6mm ahead stem, the remaining 93mm can go inside your head-tube, the min insert mark is 73mm from the bottom.

Note: This is for a 1" (25.4mm) fork with a 22.2mm internal diameter.
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Product Reviews (2)
Overall Product Rating 4.5 / 5
Perfect Product - Give Life To Your Old Bike
16 Sep 2012
5 / 5
I recommend this product
Prosstrong, simple. reliable
This stem convertor is perfect. If you want to add new bars to your favourite old frame it's the only way to go. Stick it in the 1 inch threaded headset's hole and then clamp a shiny new stem to it. You get lots more choice with this setup and you don't have to remove the brakes every time you need to do a full service.

Great Wee Product
13 May 2011
4 / 5
I recommend this product
ConsNot the cheapest
ProsLooks like it will last
Strong build, easy to fit and transform your headset to ahead.
Questions & Answers (1)
Will This Fit Into A 25,4Mm Id Threaded Fork?
26 Feb 2015
I suspect this fits the (B) type below.
(A) 1" OD/22mm ID
(B) 1 1/8 OD/ 25,4mm ID
SJS Customer Service:

This stem adapter has a OD of 22.2mm diameter which is designed to be fit to a 1" inch fork with an external diameter of 25.4mm.

Regards, Jamie