Plugging (air-ride) fork shafts
- daveo
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Plugging (air-ride) fork shafts
18 Aug 2014 09:57
Since replacing the air-ride fork suspension with Progressive springs, I've been wanting to remove the air-share apparatus from them, but will encounter a slight problem by doing so.
The holes currently covered by the o-ringed flanges will need to be plugged, to prevent fork-oil from escaping. I'm thinking of inserting 4mm set-screws, after tapping out the holes just deep enough to provide solid stops for the threads, while positioning the heads just below the surface.
Anyone have a better idea, other than replacing the shafts or leaving them alone?
The holes currently covered by the o-ringed flanges will need to be plugged, to prevent fork-oil from escaping. I'm thinking of inserting 4mm set-screws, after tapping out the holes just deep enough to provide solid stops for the threads, while positioning the heads just below the surface.
Anyone have a better idea, other than replacing the shafts or leaving them alone?

1982 KZ1100-A2
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- PLUMMEN
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Re: Plugging (air-ride) fork shafts
18 Aug 2014 12:10
Seems like the easiest way to fix them to me.
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- daveo
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Re: Plugging (air-ride) fork shafts
18 Aug 2014 23:58PLUMMEN wrote: Seems like the easiest way to fix them to me.
It was fairly simple, but I didn't gauge the depth of tapping by-hand very well. The 6mm long set-screws were about 30% too long, so the excess was ground off, otherwise the tips touched the spring coils in the tubes.
The whole process took about two hours, and it really cleaned-up and uncluttered the forks.
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Its my opinion that the ride with Progressive front springs (and rear shocks), is like having a whole-different bike...far-better than the old, stock air-ride system.
1982 KZ1100-A2
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- Puffin
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Re: Plugging (air-ride) fork shafts
19 Aug 2014 02:36
Daveo i have also done this on my 1100. I used stainless grub screws loctited in place. It does indeed tidy up the front end especially if you loose some of the other clutter at the same time :woohoo:
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Re: Plugging (air-ride) fork shafts
19 Aug 2014 08:03Puffin wrote: Daveo i have also done this on my 1100. I used stainless grub screws loctited in place. It does indeed tidy up the front end especially if you loose some of the other clutter at the same time :woohoo:
I used silicone on the threads, thinking that would work good to seal them.
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Which Loctite did you use, and how well did it work?
1982 KZ1100-A2
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Re: Plugging (air-ride) fork shafts
20 Aug 2014 00:41daveo wrote:Puffin wrote: Daveo i have also done this on my 1100. I used stainless grub screws loctited in place. It does indeed tidy up the front end especially if you loose some of the other clutter at the same time :woohoo:
I used silicone on the threads, thinking that would work good to seal them.
Which Loctite did you use, and how well did it work?
Im sure the silicone will be fine

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