Stupid forking question...  RSS Feed

#1 2013-01-29 7:24am

gtmorse
"Georgie Porgie"
From: Louisville, KY
Registered: 2010-06-23
Posts: 606
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Stupid forking question...

In the process of gathering all my parts to assemble a build, I tried putting the bottom bearing race on my fork. Obviously without the proper tools, I couldn't do it. In playing around, I noticed the lower portion of the fork had a slightly larger diameter.  Not talking about where the race is seated, but the lower 1/3 of the tube or so.  I tried slidding the lower cup and bearing down and it was so tight there was no way the bearing would be near the race.  The lower portion was a few mm larger.

Is this normal?  The forks are S&M Race forks and the headset is FSA Pig. I bought them both used from other members, here. The fork wasnt used much, the headset was more "used".  Wonder if its the fork or the headset?


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#2 2013-01-29 8:17am

jrkcfrank
Pro MemberKing Proto-Type
From: Other side FL
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Re: Stupid forking question...

cut a piece of pipe slightly larger than the head tube and long enough so you will not hit the top of the head tube  put the race on with lube and drive it on make sure you are going on straight and keep hammering till on i have a old rim to hold it so i do not mess up the fork   post a picture

Last edited by jrkcfrank (2013-01-29 8:18am)


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#3 2013-01-29 9:35am

gtmorse
"Georgie Porgie"
From: Louisville, KY
Registered: 2010-06-23
Posts: 606
Bikes: 7
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Re: Stupid forking question...

Yea, I get that..  I'm just wondering if it's normal for the diameter of the fork tube to be different by a few mm as you get closer to the bearing race seat..


Self proclaimed "Non-Newb.." wink

Father, into your hands I commit my spirit - Luke 23:46

[img]http://i1123.photobucket.com/albums/l560/George903/bw-Louisville-chapter1.jpg[/img]

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#4 2013-01-29 3:16pm

jrkcfrank
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Re: Stupid forking question...

yes  it called a bearing race holder or taper in welding words just lube it and drive it home


Trades for or purchase orphan  7b araya Silver  also 7b araya or Weinmann, Gold set. 

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#5 2013-01-29 3:56pm

gtmorse
"Georgie Porgie"
From: Louisville, KY
Registered: 2010-06-23
Posts: 606
Bikes: 7
Website

Re: Stupid forking question...

I understand there's a seat and that it's slightly larger.  I measured the steerer tube.  Its about 6 1/2" long.  The top 4" or so is a perfect 1-1/8".  The lower 2 1/2" is about a 1/16" bigger, THEN there's the bearing race seat.

http://i1023.photobucket.com/albums/af357/gtmorse/P1290121_zpsb7fd9c78.jpg

My question is..  Is that bottom 2 1/2" that's 1-3/16" normal, and why won't my bearing fit?

Last edited by gtmorse (2013-01-29 3:57pm)


Self proclaimed "Non-Newb.." wink

Father, into your hands I commit my spirit - Luke 23:46

[img]http://i1123.photobucket.com/albums/l560/George903/bw-Louisville-chapter1.jpg[/img]

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#6 2013-01-29 4:16pm

its-all-good
AdminDon't Cheers Me Bro
From: Portland Oregon
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Re: Stupid forking question...

They make two different size crown race for headsets. 26.4 & 27.0. You have a 26.4 and sounds like you need a 27.0.


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#7 2013-01-29 6:20pm

jrkcfrank
Pro MemberKing Proto-Type
From: Other side FL
Registered: 2007-06-07
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Re: Stupid forking question...

+1


Trades for or purchase orphan  7b araya Silver  also 7b araya or Weinmann, Gold set. 

See my bmx parts and framesets for sale Pay with bitcoin and get a discount. 

# 561-951-4789

Overseas shipping usps priority envelope 4 lbs max 32.25! Wow inflation

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