Bent fork but no reason

chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

I rebuilt my forks last weekend. When putting them back together they wouldn't sit right.

After much fucking about and trying everything I come to the conclusion the LHS upper Fork leg is bent.

The problem when I first put it back together was the spindle screwed in too far and the wheel would sit off center. The face of the spindle should sit flush with the fork leg.

i.e.
https://www.consolidatedtools.com/WebRoot/GroupNBT/Shops/s3zpvuf584b3/4EE4/8654/F741/6FA6/18B9/0A0C/05E9/4FC4/KOKENSPINDLE_LARGE.jpg

See how it is flush with the fork leg? Mine was 5-10mm recessed.

The test that proved it to me was I had the forks in and bolted up the spindle but no wheel/Muguard. I tighten the spindle up enough so it was flush.

I loosened the pinch bolts on the RHS fork and spun the upper stantion (Chrome bit). The space between the face of the spindle and the lower leg didn't move.

When I repeated this on the LHS leg the spindle face would move in and out.

I have no idea how this happened, They haven't been in an accident. Is it possible to bend a fork and not realise?
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Well, you know what they say. If you want to save the world, you have to push a few old ladies down the stairs.
Skudd:- Perhaps she just thinks you are a window licker and is being nice just in case she becomes another Jill Dando.
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CaNsA · Super Spammer Joined: 02 Jan 2008 Karma :

What are the bushes like?

chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

CaNsA · Super Spammer Joined: 02 Jan 2008 Karma :

Strip the fork again and check everything with a straight edge innit.

chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

CaNsA · Super Spammer Joined: 02 Jan 2008 Karma :

do you not have a laser pen?

chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

My method of checking is enough to establish it is bent just wonder how it could have happened.
____________________
Well, you know what they say. If you want to save the world, you have to push a few old ladies down the stairs.
Skudd:- Perhaps she just thinks you are a window licker and is being nice just in case she becomes another Jill Dando.
WANTED:- Fujinon (Fuji) M42 (Screw on) lenses, let me know if you have anything.

Pete. · Super Spammer Joined: 22 Aug 2006 Karma :

Accident

If you want to get them straightened you're welcome to come over and use my hydraulic press.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good Very Happy

chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

Pete. · Super Spammer Joined: 22 Aug 2006 Karma :

Can't really beat that price TBH to have Motoliner do it. Do they require the leg whole or stripped? My guess is they'd appreciate it stripped.
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good Very Happy

chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

Is this on the tdm? With conventional forks. Takes a fair bit to bend forks (and massive amount to bend USD forks - when compressed in an impact the main stress point just under the bottom yoke has the strength of both the inner and the outer). An accident really is the most likely cause. Are they the original forks (ie, been out for a fork change at a dealer and got mixed up with another set maybe?)

All the best

Katy
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Wonko The Sane · World Chat Champion Joined: 20 Jan 2013 Karma :

pothole?
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chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

Yeah this is the TDM. Both stantions were replaced a few years back with new OEM by me. I haven't had any meaningful impact since then. This is why I am so perplexed by it.

I do have an old bent one in the garage I use as breaker bar which i considered had gotten mixed up but that would be impossible has it has a collection of old fork seals round it as a sort of grip.
____________________
Well, you know what they say. If you want to save the world, you have to push a few old ladies down the stairs.
Skudd:- Perhaps she just thinks you are a window licker and is being nice just in case she becomes another Jill Dando.
WANTED:- Fujinon (Fuji) M42 (Screw on) lenses, let me know if you have anything.

Ariel Badger · Super Spammer Joined: 02 Dec 2006 Karma :

You tend to notice incidents that bend forks! Are you sure they were straight when you got them?
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