Changing forks on a GS125

SoND · World Chat Champion Joined: 10 Jul 2005 Karma :

If I wanted to fit a different set of forks to my bike (from a 250 or something) what modifications would need to be done to make them fit?

Will it just be custom yokes made or is it a lot more complicated?

I know custom yokes would be very expensive to have made, but I'm just wondering what sort of work would need done to fit them.

I might be able to get things machined cheaply and I can weld so I'm wondering how it's done. Don't think I'll be trying it for a while anyway.
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mchaggis · World Chat Champion Joined: 09 May 2004 Karma :

So long as they were the same diameter and used the same yokes as the previous ones, the only things you'd have to worry about would be the possible difference in front brakes and speedo drive. Master and slave cylinder diameters really need to be matched to each other, and ideally to the bike.

Get the whole front end with forks the same diameter including the brake system and you should be fine with just new yokes. Well, fine in terms of fitting them, but geometry might be different (longer/ shorter forks) and the front spring stiffness would be much higher if taken from a heavier bike.

Different length spacers could potentially allow the same yokes to be used, but not guaranteed. Come to think about it, would it be possible to take the yokes from a donor front end too? Either that or weld a new steering head on altogether. Laughing

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G · The Voice of Reason Joined: 02 Feb 2002 Karma :

Unless you're looking at swapping the whole front end and have forks of the correct diameter, it would probably end up being cheaper/less hassle to just buy a new bike!

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

Having done this kind of thing myself, I can assure you that it is a complete ball ache and not worth the hassle. You also have to get the wheel in, central and correctly spaced.

Unless you want to fit some that have the same diameter stanchion as the existing ones (and quite a few smaller honda ones probably would fit), I wouldn't bother.
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