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Discussion in 'Japanese polycylindered adventure bikes' started by Greg the pole, Aug 7, 2019.
good question, but I don't really have a good anwser.
@Motociclo will be able to anwser.
I have in a sense looked into this.
I found some companies that polish tubes internally. It is done to a mirror finish.
Only draw back is it would marginally increase ID. No much, like 0.1mm , but reg AT outer tubes seem to have a real loose bush clearance.
It would have tobe a better running surface for the bush to slide on.
Surface hardness is the reason for the type of anodising used.
I've played with boat masts for most of my life, and even though tough and flexible, the bare aluminium does gall quite easily even with rope fibers, man made or natural.
Which is why when the anodising wears on the forks, the bushings begin to scuff the inner surface, followed by stick tion etc..
The anodised layer of aluminium is really thin and really hard but is brittle, and not particularly flexible which is the issue with these forks.
I suspect, that the ideal correction for this bike and the use its being subjected to, would be larger OD diameter tubes with increased wall thickness which would be stiffer and allow the anodising not to flex as much. But doing so will need change of triple clamps etc.....
it's all good! I got shims!
ohlins solves the OD tubes, and less flex...wear though...
I'll tear mine apart shortly, just didn't feel like it this last time round.
So, ideally what we'd need is titanium outers, polished to a mirror finish in the ID and bushings correctly shimmed to suit?
sounds cheaper than ohlins!
Wouldn't be much difference, how Ohlins come to that price point just baffles me.
I can buy a full aftermarket suspension system for my 4wd for what they want for two forks. Then again if Honda would fix their fuck ups we wouldn't be here talking about it.
In theory, what would be the best forks to put on the AT for offroad use and overall durability? Perhaps put another way, what would an un-sponsored Dakar racer have if they still allowed twins?
name. The bastards are trading on name alone. They built half the fork and went to lunch.
Guessing a showa meant for a yz...what @Camel ADV said earlier, with AT lugs, or hell..buy ohlins lugs, screw onto the forks (if they have top only adjustment) and valve/shim/spring heavier for the bike
Are you guys having that much issues with the forks? Everything besides the lack of a top out spring has been great for me.
Maybe I don’t know what I’m missing but it seems to perform great for me
meh...not really, but for that much money there should be zero issues. Just bitching and moaning.
Agree, and 3,000$ deserves a bleeding screw...
Very simple,Kyb sss forks.Proven many times over in competition and raved about in performance.KTM riders even install sss fork internals in there WP forks to make them work better.Some beta and husky models also use the design now.
I opened my ATAS fork yestarday after 25tkm with a lot of hard off road, because it has some loose on bushing.
Before i opened it i order original honda bushing.
The good news was it have no wear of anodising, alsow no wear on bushing... wtf?
I change bushings to new one and it has he same loose... so i put 0,09mm shims under top bushings and now its perfect.
I used 5w KYB fork oil. I will do another 10tkm and give you a raport.
Exactly the info I have been waiting to hear.Had a feeling the stronger ATAS tubes would solve the issue.
Where can we find these? Is there a shop that sells them pre-set up, or do we need to piece them together ourselves?
At some I was going to get the Ohlin's but I'm always open to alternatives - especially if better!
Piece together is only way.You will give up 1 front disc also. When things slow down here I am going to start looking into it more.Camel adv has a video on YouTube for the conversion. He talked about finding a crashed ktm and use the lower lugs on sss forks to keep twin discs.Single disc can work fine with proper smaller master but a single over heats faster for a fast road rider.This conversion is not simple and kills resale on bike.