Retrobike Forum Index

It is currently Thu Dec 13, 2018 3:42 pm

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 9 posts ] 
Author Message
 Post subject: Ringlé Slamma Jamma
PostPosted: Fri Sep 14, 2018 7:26 pm 
Gold Trader
Gold Trader
User avatar

Joined: Thu Aug 02, 2012 11:48 am
Posts: 1129
Location: Somerset
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 :D


Attachments:
File comment: courtesy of beepbeep
Slamma1.jpg
Slamma1.jpg [ 149.72 KiB | Viewed 356 times ]
Top
 Profile  
 
 Post subject: Re: Ringlé Slamma Jamma
PostPosted: Sat Sep 15, 2018 12:26 pm 
BoTM Winner
BoTM Winner
User avatar

Joined: Sun Jun 23, 2013 3:12 pm
Posts: 1738
Location: Southernmost US
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?


Top
 Profile  
 
 Post subject: Re:
PostPosted: Sat Sep 15, 2018 2:55 pm 
Gold Trader
Gold Trader
User avatar

Joined: Thu Aug 02, 2012 11:48 am
Posts: 1129
Location: Somerset
Excellent advice! I have a CK on my Surly, so I'll break that down this afternoon and check. I'll keep you posted.


Top
 Profile  
 
 Post subject: Re: Ringlé Slamma Jamma
PostPosted: Sat Sep 15, 2018 5:03 pm 
BoTM Winner
BoTM Winner
User avatar

Joined: Sun Jun 23, 2013 3:12 pm
Posts: 1738
Location: Southernmost US
I should have one and will send it pro bono if I do. Need to check diameter.


Top
 Profile  
 
 Post subject: Re:
PostPosted: Sat Sep 15, 2018 6:09 pm 
Gold Trader
Gold Trader
User avatar

Joined: Thu Aug 02, 2012 11:48 am
Posts: 1129
Location: Somerset
Thanks Jason. :D

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.


Attachments:
CK_Surly_Funk_3.jpg
CK_Surly_Funk_3.jpg [ 357.67 KiB | Viewed 278 times ]
CK_Surly_Funk_1.jpg
CK_Surly_Funk_1.jpg [ 413.62 KiB | Viewed 278 times ]
Top
 Profile  
 
 Post subject: Re: Ringlé Slamma Jamma
PostPosted: Sat Sep 15, 2018 7:30 pm 
BoTM Winner
BoTM Winner
User avatar

Joined: Sun Jun 23, 2013 3:12 pm
Posts: 1738
Location: Southernmost US
I see. Def needs a flange to keep the bearings clean.


Top
 Profile  
 
 Post subject: Re: Re:
PostPosted: Sat Sep 15, 2018 7:56 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
User avatar

Joined: Fri Oct 10, 2008 8:44 pm
Posts: 3777
Location: Wherever it is, I'm being just that little bit more Lance
Swede wrote:
Thanks Jason. :D

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.


Top
 Profile  
 
 Post subject: Re:
PostPosted: Sat Sep 15, 2018 8:15 pm 
Gold Trader
Gold Trader
User avatar

Joined: Thu Aug 02, 2012 11:48 am
Posts: 1129
Location: Somerset
Thanks, in that case I need a wider flange :wink: .


Top
 Profile  
 
 Post subject: Re:
PostPosted: Mon Oct 01, 2018 2:58 pm 
Gold Trader
Gold Trader
User avatar

Joined: Thu Aug 02, 2012 11:48 am
Posts: 1129
Location: Somerset
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 :D . Happy days! It's not perfect but I think it will do the job.


Attachments:
IMG_8085.JPG
IMG_8085.JPG [ 189.36 KiB | Viewed 151 times ]
IMG_8086.JPG
IMG_8086.JPG [ 195.77 KiB | Viewed 151 times ]
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 9 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: Duxuk, MR OX, WimVDD, yakboy, Yetidh9 and 20 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

About Us

Follow Retrobike

Other cool stuff

All content © 2005-2015 Retrobike unless otherwise stated.
Cookies Policy.
bikedeals - the best bike deals in one place
FatCOGS - Fat Chance Owner's Group

Powered by phpBB® Forum Software © phpBB Group