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Help With Front Hubs & Dh Forks


MadManMike

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Right,

I'm looking at some forks on ebay, that all have 20mm bolt through axles to hold the wheels on - do I need to get my combat rim built onto a new rim?

How does 20mm bolt through affect things?

Most importantly, is there any massive forks that don't need 20mm bolt through? I just wanna put my wheel on, no messing :(

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have you considered that putting much bigger forks on your dmr? might make it ride a bit shit/snap the head tube off?

I assume you mean combat rim on a new hub? id imagine so unless your hub is already a 20mm with a qr20 adapter which i assume it is, i suppose there safer stiffer and stronger in the long run, you can pick up front hope bulb's etc cheap enough but id probably just gpo for a set of mx comps qr drop out or something, or at max dirt jumpers, which i may have for sale soon . . :P

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I've seen a few guys with bigger forks, they look cool and seem to be good for manuals and stuff - I guess it does put a lot more pressure on the tubing though.

Hmm...

I really want them though :)

"a 20mm with a qr20 adapter" - Sorry, I don't get what you mean - They are 24", with standard quick release - are you saying if I take the skewers out I can just whack the 20mm bolt through?

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as far as i know the trailstar was only designed for a max 100mm travel fork, so i wouldnt bother getting a longer travel fork than that, maybe 130 at a push but its gonna make the geo a lil off to what it was designed to be and put more stress through the front end of the bike.. you'd defo need a new front 20mm compatible hub if youve only got a standard qr hub at the mo. you got any pics of your bike atm??

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Like craig says, I wouldn't go much higher than a 130mm fork, and thats pushing it. The reason you see trailstars with really long forks is because they do a version called a trailstar LT, the LT standing for Long Travel, These are designed to be run with a 130mm fork, so at a push you might get away with about 150/160mm.

I'm on the borderline of whether or not to say you'll be ok with a 130mm fork on your trailstar. What age frame is it? if its the older ones with the thinner tubing I'd steer clear of it. One of my mates had 120mm maniuous on sidekick, (which is pretty much the same frame but lower) and it rode pretty nicely, but the frame cracked where the downtube meats the headtube. So if you have the newer one, which is more reinforced in that area (the trailstar II) then it'd probably be fine, like I said, it rode nicely.

if you go for a 130mm fork, have a look at these. As you can see, reduced shhiit loads, and a really really nice fork.

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Looks good. Sorry, but its the mk1 (have a look around the headtube area at where the tube meet and the lack of a large 3d gusset on the underside of the headtube), I wouldn't want to risk it with any longer than about 110mm really.

If you want to make it manual nicer then you could try a higher rise bar. Or even just a more modern 100mm fork would raise the front a fair amount, those oldschool forks tended to be pretty short for their travel. It would still be worth your while upgrading the fork, even if you're not gaining any travel, as the benefits of the more modern damping systems and bushings will still massively improve the feel of the forks, making them feel like they have more travel then your old judys, even if they dont.

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Damn man they are brand new forks lol

Seriously, I bought the frame, forks and wheels from my LBS :S

I'm looking at some Bomber forks that are 100mm travel, I must admit they look a lot more substantial than the Judy's - Would you recommend going for it?

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Oh right, weird, they're about a 2002 model at latest! :S Frame looks around that time too. But obviously being un-used the frame will be fine. Forks are still good, its just the suspension technology's moved on since then and left them behind a bit. I'd say go for the bombers and sell the judys to someone for XC while they're still worth something, there are a fair few XC boys who are still big fans of the oldschool rockshox. What model of marzocchi's are you looking at?

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Anything with the letters Z1 is a pretty safe bet. Other than that DJ1/2/3 are all good, any year, although check the 2003 DJ3's for cracks under the crown as a few got out with a slightly miss placed drilling that caused them to crack. Drop-offs aren't bad.

Edited by Dont you Just Hate it When...
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If you want super cheap but decent forks, mx comps are pretty good. Those rock shox look well old!

As for the hub, some hubs are convertible to 20mm, like Hope Pro IIs. Yours probably aren't, so you'd have to get new wheels. I wouldn't bother.

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