Ringlé Slamma Jamma

Swede · Sep 14, 2018

I've been lucky enough to get my hands on a NOS one of these but I need your help... It's missing the bottom bearing race, so it looks like I'm going to have to make one. I've found a good picture of what I'm looking for (below) but can you tell me;

a. what it's made from?
b. any chance you could take some measurements?

Greatly appreciated

Smithjss70 · Sep 15, 2018

a Chris King race should work proper. They can be had on line easily for under $20. What diameter? 1 1/4 or 1 1/8?

Swede · Sep 15, 2018

Re:

Excellent advice! I have a CK on my Surly, so I'll break that down this afternoon and check. I'll keep you posted.

Smithjss70 · Sep 15, 2018

I should have one and will send it pro bono if I do. Need to check diameter.

Swede · Sep 15, 2018

Re:

Thanks Jason.

I tried my CK headset and it runs okay but as you can see there's a huge gap at the bottom and you can still see the bearing. The CK website lists something called "1-1/8" +5mm Baseplate" but there's no picture or drawing so I've no idea it that would work.

Smithjss70 · Sep 15, 2018

I see. Def needs a flange to keep the bearings clean.

Tad · Sep 15, 2018

Re: Re:

Swede":1nmpvrno said:
Thanks Jason.

I tried my CK headset and it runs okay but as you can see there's a huge gap at the bottom and you can still see the bearing. The CK website lists something called "1-1/8" +5mm Baseplate" but there's no picture or drawing so I've no idea it that would work.

The +5mm baseplate is just 5mm taller than a regular one. Imagine the standard baseplate with a 5mm spacer underneath it if that makes sense.

Swede · Sep 15, 2018

Re:

Thanks, in that case I need a wider flange

.

Swede · Oct 1, 2018

Re:

The ID of the CK bearing is ⌀30.50mm whereas the Ringlé is ⌀33.50mm, so there was quite a bit of lateral movement with the CK race.

I took the frame (headset was fitted) plus the CK race to local machine shop and they made me this for £15

. Happy days! It's not perfect but I think it will do the job.

Ringlé Slamma Jamma

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