Author Topic: Thorn 1 1/8 to 25.4mm Stem 130mm or greater  (Read 2954 times)

FilmMusik

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Thorn 1 1/8 to 25.4mm Stem 130mm or greater
« on: June 18, 2022, 03:24:39 pm »
Looking for a 1 1/8th stem - 25.4mm clamp size ideally 130mm or greater. I'm in Bristol so may need postage.

Thanks!

Laurence

JohnR

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Re: Thorn 1 1/8 to 25.4mm Stem 130mm or greater
« Reply #1 on: June 18, 2022, 03:59:01 pm »
There's a 130mm Thorn stem available for 11.99 at https://www.ebay.co.uk/itm/314025856449. I've got the 110mm size and it's fine.

mickeg

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Re: Thorn 1 1/8 to 25.4mm Stem 130mm or greater
« Reply #2 on: June 18, 2022, 04:59:32 pm »
There are shims available for converting a 26mm stem to 25.4mm handlebars.  I am not researching them here, but I have used one on one of my bikes.

JohnR

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Re: Thorn 1 1/8 to 25.4mm Stem 130mm or greater
« Reply #3 on: June 18, 2022, 05:29:56 pm »
There are shims available for converting a 26mm stem to 25.4mm handlebars.
Might you mean 31.8mm to 25.4mm? The difference between 25.4mm and 26mm is small enough that it can usually be handled by the clamp although such shims exist.

mickeg

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Re: Thorn 1 1/8 to 25.4mm Stem 130mm or greater
« Reply #4 on: June 18, 2022, 06:39:22 pm »
No, I meant 26mm stem and 25.4mm handlebars.

Initially I used a few pieces of sheet aluminum I cut from a beer can, but saw the proper shim for sale at a swap meet and used that. 

I measured the beer can thickness with a good caliper and found the number of layers needed to be spot on.

FilmMusik

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Re: Thorn 1 1/8 to 25.4mm Stem 130mm or greater
« Reply #5 on: June 19, 2022, 08:21:48 pm »
Thanks for all the advice - the ebay stem not ideal as it's carbon and hoping to use off road at points. I'll get the shim - cheers all!