Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the May Giveaway for a Road Electric Bike Hurricane from KBO


Custom Frame Headtube and Fork
#1
G’day,

I have a couple of questions. I want to install Fox 40 29” on a new custom made frame. Frame not made yet.

The headtube will be straight headtube 44mm round 120mm or 135mm in length. What length would be best?

I’m looking at zs44/28.6 zs44/30 headset. Would this be the right headset for the tube and fork?

Also any tips on how to installing the fork and headset?

Does the upper crown sit on top cup?

I’ve been told to add spaces. Where should I add the spaces? Under the upper crown?

I’ve cut tubes on forks before and installed headsets but not on downhill frames.

Thanks for any answers.
  Reply
#2
okay, so this will either help you or confuse you more. But I will Try.
this is a complicated question... there's a lot of components and stuff that you are looking at simultaneously here.
so first off the fox 40, I think has a range of stack height from 105 to 165 mm so either tube length should be okay. except with that, you need to look at stack height for the headset too. from what I can tell, that headset would work, you might want to look at the cane creek short one though just to ensure that you have the right amount of room. as long as you are within the stack height range, you should be fine without spacers. From what I think I know you won't need them. It is going to have rubber bumpers though, slide those on so you don't back your fork into the frame.
the top crown should sit on the top cup of the headset, much like a slammed stem would on a normal bike. And cutting them is the same as a normal fork, but you just want to make sure you have everything on there first obviously.
I hope this helped, if not I know fox has some diagrams online but they are slighlty confusung.
"Steel is real."
- IDK, some guy.
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
Is the creaking sound coming from pedals...
Yesterday 02:47 PM
2021 Pro Road Cycling
Yesterday 02:37 PM
Is Presta valve lock nut useful?
Yesterday 02:12 PM
Which gravel bike saddle do you suggest?
Yesterday 07:43 AM
Have you Ever Tried an Electric Bike?
05-16-2021 05:54 PM
1994 Scwinn Crisscross
05-16-2021 09:49 AM
SunTour Freewheel "Perfect" model
05-15-2021 11:48 PM
Looking for a fixed gear bike under $300
05-15-2021 05:36 PM
Biking in the rain
05-14-2021 09:02 AM
COPPI "DALLA LIBERA" 60s FRAME SET
05-14-2021 12:51 AM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
22 posts
no avatar 2. Nikko
7 posts
no avatar 3. ChaseCal
7 posts
no avatar 4. ManBearPig
5 posts
no avatar 5. Criminal
4 posts