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2023 Zeb Ultimate i...
 

2023 Zeb Ultimate issues?

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No, where do you get that idea? When I borrowed them they were fine, I borrowed them while he was recovering & when he returned to riding, they worked without issue but then got progressively worse ride after ride, and so sent them to be look at by SRAM (or Mr. Butter @ Race Co very kindly sent them back). We got to bottom of a trail yesterday and I could see they were sitting much lower into their travel than normal & then tried them a couple of times & they are awful.


 
Posted : 04/12/2022 4:55 pm
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No, where do you get that idea?

Your bit of text i quoted in my post.

Never mind though,did they replace or resIze the bushings as part of the warranty work?

I think as far as your consumer rights (which are different to any manufacturer warranty terms) you need to go back to the place they were bought from,have a read of this.

https://www.which.co.uk/consumer-rights/advice/what-do-i-do-if-i-have-a-faulty-product-aTTEK2g0YuEy

I suspect that even though the manufacturer has already had one go at repairing them, in terms of consumer rights you need to give the original vendor one attempt to repair them before you ask them to replace them under the consumer rights act.


 
Posted : 04/12/2022 5:08 pm
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I don't see my comment, suggests he sent them back for no reason? But yes NM

Apparently, the lower bushing cannot be replaced or resized on 23's.
I wasn't aware of the, Steve said he was told this


 
Posted : 04/12/2022 5:20 pm
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I know it's not been possible to replace Rockshox fork bushings for a while. Not sure why they can't be resized if they're too tight. Isn't it just a case of running the correct sized mandrel down there?


 
Posted : 04/12/2022 8:40 pm
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That doesnt explain how the forks felt fine today initially ,but got worse throughout the ride though.

It does, if the bushes are too tight then the oil at the top of the fork will get squeezed out of them as you ride and never be replenished as the bushes don't allow new lubrication past them as they are too tight. The splash oil gets scraped off the stanchion by the lower bush and never makes it to where it's needed.


 
Posted : 04/12/2022 9:49 pm
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It does, if the bushes are too tight then the oil at the top of the fork will get squeezed out of them as you ride and never be replenished as the bushes don’t allow new lubrication past them as they are too tight. The splash oil gets scraped off the stanchion by the lower bush and never makes it to where it’s needed.

That makes sense. Initially they felt fine yesterday but did get progressively worse until the end of the ride when they felt awful. I had cramp in my hands and forearms by the end of the ride. on one section Paul and I swapped bikes as a comparison and his Zeb was just soaking everything up and mine was just pinging off everything.

I've sent the original retailer an email and will follow up tomorrow with a call. I know sending them back to SRAM via a different retailer probably hasn't helped in this case but will see what they say.


 
Posted : 04/12/2022 10:43 pm
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Thinking about this..... its been getting worse as the temperature has dropped? Coincidence or not relevant?


 
Posted : 04/12/2022 10:46 pm
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SRAM have to follow the company line from the crib sheet. What you need is somewhere that understands suspension to get this resolved for you.


 
Posted : 04/12/2022 11:37 pm
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As I said a few posts up and so did the other chap - bushes are tight.

Temperature does have an effect on the tightness of the due to the differing CTE's (thermal expansion coefficient) of the metal. The lower leg is cast magnesium and exposed to ambient air temp. The stanchion containing air piston is aluminium. As the air is compressed in the air piston it heats up expanding the stanchion ever so slightly. The magnesium lower fork legs will shrink (again ever so slightly) in diameter (as exposed to cold air) tightening the fit and making bushes even tighter.

All my RS forks with right bushings felt much better in the summer and terrible in the winter


 
Posted : 05/12/2022 12:54 am
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