Rebuild forks?

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Zombie Master
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Rebuild forks?

Post by Zombie Master »

1984 R100S original owner

So last year it was suggested that I rebuild my brake calipers due to age. One poster put up a youtube of the front wheel spinning without any restriction from the brake pads, so I felt I should look into it. Well I did, and it was a waste of time and money as everything looked perfect coming apart. I had a huge pia as the replacement non OEM parts from Mototbins didn't fit, and finally got the proper OEM parts that went together easily.

I'm wondering about my forks which have received regular fork oil changes. They work fine. What do you think. :geek:
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gocytocis
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Re: Rebuild forks?

Post by gocytocis »

I’ve never rebuilt a fork unless,
A) it’s leaking,
B) it’s sticking, or
C) it’s clunking.

This method has served me on both on forks with 1,000 km on them, & over 100,000 km on them...
'72 R75/5
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gspd
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Re: Rebuild forks?

Post by gspd »

You might feel an improvement by replacing or shimming your fork springs which have probably sagged significantly since new.
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Zombie Master
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Re: Rebuild forks?

Post by Zombie Master »

gspd wrote: Mon Sep 10, 2018 9:28 pm You might feel an improvement by replacing or shimming your fork springs which have probably sagged significantly since new.
I put the hd BMW fork springs in a long time ago, they seem to be sitting up fine. Isn't the ride height the issue? I'm more worried about deteriorating bumpers and internal parts.
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ME 109
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Re: Rebuild forks?

Post by ME 109 »

Zombie Master wrote: Tue Sep 11, 2018 1:25 am
I'm more worried about deteriorating bumpers and internal parts.
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No bumpers, and only about five bits in there. I haven't worn mine out yet.
Although I did put a 12mm spacer on top of the springs. Noticeable.
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Zombie Master
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Re: Rebuild forks?

Post by Zombie Master »

ME 109 wrote: Tue Sep 11, 2018 7:33 am
Zombie Master wrote: Tue Sep 11, 2018 1:25 am
I'm more worried about deteriorating bumpers and internal parts.
IMGP2760 copy 3.JPG
No bumpers, and only about five bits in there. I haven't worn mine out yet.
Although I did put a 12mm spacer on top of the springs. Noticeable.
Thanx! I did replace fork seals at one point. :)
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Wobbly
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Re: Rebuild forks?

Post by Wobbly »

Concentrate on synthetic fork oils and you shouldn't have any significant deterioration to the soft parts of the fork.
After 20 years as a professional bike mechanic and 30 years as an engineer I know just enough to be dangerous !
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Zombie Master
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Re: Rebuild forks?

Post by Zombie Master »

Wobbly wrote: Fri Sep 14, 2018 8:55 am Concentrate on synthetic fork oils and you shouldn't have any significant deterioration to the soft parts of the fork.
Not easy to find 100% synthetic fork fluids, what kind do you use?
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ME 109
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Re: Rebuild forks?

Post by ME 109 »

I don't think the '81-'84 has any soft parts. I haven't broken any in my '81. I've broken lots of other stuff tho.
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Re: Rebuild forks?

Post by Zombie Master »

ME 109 wrote: Sat Sep 15, 2018 4:05 am I don't think the '81-'84 has any soft parts. I haven't broken any in my '81. I've broken lots of other stuff tho.
Music to my ears :)
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