2021 Honda CRF450rwe clunking in fork

mattbmx63
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mattbmx63
Sometimes when going through sand whoops or pulling up on the front end, there is a noticeable clunk felt through the bars. Nothing is loose. It’s like the fork is topping out and there is a hard stop. Mostly happens if you just barely clip the top of a whoop with the front wheel.

Any ideas?
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Day30
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Day30 5/2/2021 10:17pm
5/2/2021 10:17pm
Did you torque your triple clamps to spec? Too tight and they can stick not letting the inner tube past it
beamer
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beamer 5/3/2021 6:29am
5/3/2021 6:29am
Is your rebound clicker possibly backed all the way out ? This happened on my KX450, somehow I missed setting them properly after servicing them, mine would give a slight “thud” sensation in the air periodically. With no dampening resistance they would travel to the end of the stroke very quickly
needforspeed78 5/3/2021 7:10am
5/3/2021 7:10am
mattbmx63 wrote:
Sometimes when going through sand whoops or pulling up on the front end, there is a noticeable clunk felt through the bars. Nothing is loose. It’s...
Sometimes when going through sand whoops or pulling up on the front end, there is a noticeable clunk felt through the bars. Nothing is loose. It’s like the fork is topping out and there is a hard stop. Mostly happens if you just barely clip the top of a whoop with the front wheel.

Any ideas?
You have air in the inner cartridge. Service them and bleed the cartridges properly and youre good to go.

The Shop

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Skerby
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Skerby 5/3/2021 10:14am
5/3/2021 10:14am
I got a set of forks back from a suspension guy, and they topped out like crazy. He told me not to worry about it and I stopped letting it bother me.
Xeno
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San Clemente, CA US
Xeno 5/3/2021 10:55pm
5/3/2021 10:55pm
That’s the proper term- “topping out”. It’s very common with 49mm Showas on Honda dirt bikes. I was hoping the ‘21 wouldn’t do this because it has an updated free piston.
mattbmx63
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mattbmx63 5/8/2021 11:14am
5/8/2021 11:14am
Everything is tight and torqued to spec.. you can feel it riding if you pull hard on the handlebars
motoracer58
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motoracer58 7/10/2023 10:56am
7/10/2023 10:56am

Inner cartridge rod seal could be bad causing the issue

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