Headset help needed

[Nieky]

Hi all,

I just picked up a replacement fork for my Carlton frame of ebay. I have two headsets lying around, but I can't get the cup and locknut screwed on the steerer. I remembered that the fork was advertised as vintage Carton/Raleigh/Dawes but without a date, so I now suspect it may well have a 26 TPI steerer whereas my headsets are 24TPI. How do I check this? Is it literally just a matter of putting a ruler next to it and counting the number of threads in an inch? And if it is 26TPI, what would be a good source to pick up a replacement headset? Ebay seems either stupid expensive, or 1 1/8" instead of 1". Does anyone have a 26TPI headset for sale?

Thanks!

 

[mdvineng]

If you don't have a thread gauge then counting threads with a ruler is the way to do it . When you know what it is, then decide what next.

Sheldon Brown's Bicycle Headset Dimension Crib Sheet

Useful headset (steering bearing) dimensions and conversions for the cyclist/mechanic

www.sheldonbrown.com

 

[Nieky]

Thanks. After measuring it a few times I ampretty sure it is a 1” 26 TPI steerer. Is there a good place to pick up a headset? Recutting threads should be last resort I feel (unless I am being silly here).

 

[mdvineng]

ETC 26 TPI Headset Alloy - Silver (Size 25.4 x 34 x 30 mm) : Amazon.co.uk: Sports & Outdoors

Shop ETC 26 TPI Headset Alloy - Silver (Size 25.4 x 34 x 30 mm). Free delivery and returns on all eligible orders.

www.amazon.co.uk

It's possible to recut to 26 but it's messy and potentially a risk.

 

[Craigmount]

Hi there, I broke up a Carlton Courette about 5 years ago, bike was dated 1979/1980.
I disposed of the frame & forks however I kept a few of the components including the chrome cup and locknut and ball-bearings. See attached pic.
I think it is 26 TPI. I tried screwing it on to a 1960 Raleigh Trent fork (see pic) and it screwed straight on.
Wondering if this is any use to you? (£5 inclusive of postage)

 

[Nieky]

ETC 26 TPI Headset Alloy - Silver (Size 25.4 x 34 x 30 mm) : Amazon.co.uk: Sports & Outdoors

Shop ETC 26 TPI Headset Alloy - Silver (Size 25.4 x 34 x 30 mm). Free delivery and returns on all eligible orders.

www.amazon.co.uk

It's possible to recut to 26 but it's messy and potentially a risk.

I spotted that one, but it is listed as 1 1/8” and as 25.4mm (= 1”), so I’m not sure what it actually is.

 

[Nieky]

Hi there, I broke up a Carlton Courette about 5 years ago, bike was dated 1979/1980.
I disposed of the frame & forks however I kept a few of the components including the chrome cup and locknut and ball-bearings. See attached pic.
I think it is 26 TPI. I tried screwing it on to a 1960 Raleigh Trent fork (see pic) and it screwed straight on.
Wondering if this is any use to you? (£5 inclusive of postage)
View attachment 621342

For £5 is happy to give that a go! I’ll message you. Thanks!