Onza Hub

[Village Idiot]

Hi,

Does anyone know how to remove the freehub body from an Onza hub. I'm not too sure what model hub it is (It was standard on a 2003 T-Raptor). I've managed to remove the cassette and axle, but unlike Shimano hubs there doesn't seem to be a 10mm bolt which holds the freehub to the hub.

Has anyone ever done this? Any help would be most appreciated.

Cheers,

Ian

[BikeDotStuffAtOnzaDotCom]

Here's the full answer for people who haven't taken off the axle yet.

1. Pull off the covers on either end

2. Tap the axle with a hammer from the drive side to the non-drive side. Theres a collar on the axle so it will push out the bearing. And it won't tap out if you try it in the opposite direction.

3. Once you have the axle out, look inside from the non-drive side with a torch. It might help. If you can see the start of a very coarse thread you will need to turn it in one direction, if not the other.

The reason is that, if you can see the thread, it is a screw-in freehub, tightened by pedalling action. If not, then it will be a splined freehub which is attached differently.

4. You will need a 12mm allen key. Put the short end in a vice, long end sticking vertically upwards. Position the wheel so the long end goes in the non-drive side and engages in the hole at the backside of the freehub.

(a)If the freehub is the screw-in type, you need to turn the wheel CLOCKWISE, looking down on the drive side.

(b)If the freehub is the splined type, there is a bolt inside the hub (with a hole through it for a 12mm allen key through it) tightened to hold the freehub on. If you have this, you will need to turn the wheel ANTI-CLOCKWISE, looking down on the drive side. The freehub will slide out on its splines as you continue turning.

It helps to leave the inflated tyre on so you have something comfortable to grab onto.

Edit: I have photos at work of the freehubs and I'll post them tomorrow so you can see what I mean.

Edited November 2, 2005 by BikeDotStuffAtOnzaDotCom

[BikeDotStuffAtOnzaDotCom]

...and here are the pictures

Sealed bearing screw-on freehub

Sealed bearing splined freehub

[Village Idiot]

Thanks for that! :-

Is it possible to buy the freehubs seperately. I've looked on the Onza and Supercycles website but can't seem to find any info?

[BikeDotStuffAtOnzaDotCom]

Yes, phone Supercycles. They will need to know: sealed bearing or open bearing, screw-in or splined.

[Village Idiot]

I'm having a few problems putting my rear Onza hub back together. Basically, I'm not sure if I've lost any parts but the last nut on the axle is inside the freehub rather than on the other side, so when the wheel is put back on the bike, the grooved nut (circled on 1st picture) is not touching the drop out.

I don't know if I've lost any parts along the way, but the 2nd picture shows what the hub looks like (apologies for bad diagrams). Is there anything missing, or will it just be a case of acquiring some more spacers to push the grooved nut out further on the axle?

Pic 1:

Pic 2:

One thing I've noticed is that there doesn't seem to be any bearings on the drive side (there are 10 on the non drive side). Is it a case that I've lost them or they really aren’t meant to be any there.

By the way, the hub is a standard Onza hub (was on a 2003 T-Raptor with Onza Half-Fat rims).

Thanks in advance,

Ian

[Bionic Balls]

as i remember it...there are fully sealed bearing units mounted onto the axle- one at either end. As well as these, there are loose bearings held underneath the bit that unscrews clockwise (left-hand thread) inside the freehub....

that sound familiar?

You must be missing 'em...

adam

[Onza Kieron]

There should be bearings in both sides, thats the way my mates wheel came on his DDG. Once you have put the BB's in it will bring the cone furtherout therefore fitting :P .

Good Luck

Kieron :-

I also stopped my hub from slipping by taking the freehub apart and cleaning and bending the spring. :lol: