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Not understanding 500 front suspension 🤔

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McCabe-Thiele (Ted):
I suspect I will feel daft to ask this question as soon as I post it but here goes.🤔🤔🤔.

Lying in bed trying to get to sleep had me wondering what stopped the front fork legs from falling out when the front wheel is raised.
The upper fork legs are clamped to the steering column. The long spring / plunger is bolted to the bottom of the fork legs so what acts as the travel stop when the forks are fully extended?

Orcade-Ian:
Happy New Year Ted,
The internal damper tube is bolted to the bottom of the slider and has a collar on the top - which won't pass right through the bottom of the stanchion.  So sleep easy, the wheel can't fall off, except in extremis!

Ian

philward:
On the early 500 (upto K2), they use the 450 forks that has a threaded rod that runs from the damper in the lower fork and screws into the top chrome nut that screws into the top of the stantion - thats the set up on your early 500 I think Ted

Sorry for duplicate, Ian answered while I was typing!

Orcade-Ian:
Sorry Phil and Ted,
I forgot it was 500 - of which I know 4/5 of bugger all, I was thinking 350/4,400/4 and my latest acquisition, the 550/4. 500 is like old Brit Iron then? Except it works!

Ian

McCabe-Thiele (Ted):

--- Quote from: philward on January 01, 2023, 03:51:01 PM ---On the early 500 (upto K2), they use the 450 forks that has a threaded rod that runs from the damper in the lower fork and screws into the top chrome nut that screws into the top of the stantion - thats the set up on your early 500 I think Ted
Sorry 0
Sorry for duplicate, Ian answered while I was typing!

--- End quote ---

The penny still has not dropped - there is a thread in the chrome top nut but this would lock the long bar solid between top & bottom if used ?
The long spring passes up the slider tubes so no stop there. Surely the fork gaiters do not act as a stop?

Or is the bar in the photo not solid but is the springy bit?
I can't seem to be able to press it down by hand - so I'm either a weak nerd or it takes some force?

500 fork innards by Macabe Thiele, on Flickr

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