cush drive rubbers

rockers · Scooby Slapper Joined: 29 May 2008 Karma :

Hi there chaps i brought some new cush drive rubbers for my rear wheel as old ones are shagged.

Now bikes on pit stand wheels out studs jsut fell out easy enuff, but how on earth do you get the cush drive rubbers out ? i cant see how to do it at all.

Anyone any ideas, or how is it done ?

thanks

Rocky

baldy · World Chat Champion Joined: 15 Feb 2004 Karma :

The rubber bits are cush drive rubbers, they are meant to let the sprocket move a bit.
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rockers · Scooby Slapper Joined: 29 May 2008 Karma :

topic changed

Villers · World Chat Champion Joined: 13 Sep 2004 Karma :

Not a personal attack but surely you have BOUGHT some, not brought???

Anyway, on my previous bike they have all been easy to remove, unless Im missing something its just a case of removing the rear wheel, pulling the sprocket off and then they rubbers can just be yanked out.

If its any more difficult post a picture of it!
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rockers · Scooby Slapper Joined: 29 May 2008 Karma :

Sorry im not perfect with my English.

If you rubbers looked the smae they they look like bearings but the middle bit is rubber like a metal bit on the inside and outside of the rubber.

there flush to the hub itself so unsure how to remove them, have sprayed with wd40 and giving it some time to sink in.what did you use to yank them out ?

The camera is on charge so will get a pic up

sickpup · Old Timer Joined: 21 Apr 2004 Karma :

A picture and telling us the bike would help.

andi · Crazy Courier Joined: 23 Sep 2007 Karma :

They Should kinda look like this:

https://i16.photobucket.com/albums/b24/andipicture/cush_drive.jpg

and fit something like this:
https://i16.photobucket.com/albums/b24/andipicture/cush_drive_rubbers_mounted.jpg
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Before: Suzuki GT 185. Honda Superdream 250. Yamaha RD350LC. Suziki RG250. Yamaha FZS600. Honda CBR600F3
Now: Honda Fireblade 929

sickpup · Old Timer Joined: 21 Apr 2004 Karma :

Only some look like that.

rockers · Scooby Slapper Joined: 29 May 2008 Karma :

They do not look like that at all, like i said they look like bearings theres metal around the outside and on the inside.

I cant get my camera work... Twisted Evil

They look like this https://img266.imageshack.us/img266/3373/bearingfd5.jpg

Finglonga · World Chat Champion Joined: 27 Jul 2004 Karma :

That looks like the bearing to me, can't get the link to the larger image to work either.

What bike would help also.
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rockers · Scooby Slapper Joined: 29 May 2008 Karma :

Its a kymco styker 125

There not bearings, what i have got new are the same as what are in there at the moment.

Will try soem heat on them tomrrow unless anyone has any ideas ? Rolling Eyes

Pete. · Super Spammer Joined: 22 Aug 2006 Karma :

Some bikes have them round bushes as cush-drive rubbers. If they have been pressed into a blind hole you can force them out with some grease & a drift. You pack the space behind out with grease & then use a good-fitting drift that slides nicely in the centre-hole of the bush. Give the drift a good smack and the grease force the bush out of it's seat.. If the rubber is wrecked you have no chice really but to use a small cold chisel to break the outer shell to remove it.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good Very Happy

rockers · Scooby Slapper Joined: 29 May 2008 Karma :

Geri thanks, but what is a drift ? do you mean drill drift ? or just like a dowel that fits good in the center hole ?

Thanks

Rocky

Pete. · Super Spammer Joined: 22 Aug 2006 Karma :

Yeah that's it, a good fitting rod of some description, it has to be a good fit thoguh - usually a cut-off shouldered bolt will work for what you are doing.
A drift is just a sacrificial lump of something for hitting with a hammer so as not to damage a useful part.
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good Very Happy

sickpup · Old Timer Joined: 21 Apr 2004 Karma :

iirc they are called Metallastic bushes. Common on Brembo wheels and a fair few old small Honda's.

On Honda's they just slide into place and then the sprocket would have a large circlip holding it in place but on Ducati's with th Brembo wheels they were bonded into the wheel.

As Geri said you could drift them in but if they are a tight fit I would guess they need to be pressed into place or bonded.

rockers · Scooby Slapper Joined: 29 May 2008 Karma :

Ah awsome will give it a go tomorrow, if all fails will use the chisel and try and colaspse the side inwards.

Thanks for the help

Rocky

Pete. · Super Spammer Joined: 22 Aug 2006 Karma :

Take care not to bend the brake disc if you are working with the wheel flat on the floor - it's easier to do than you think. I sit the wheel in an old rear tyre for stuff like this.
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good Very Happy

rockers · Scooby Slapper Joined: 29 May 2008 Karma :

Bend the disc..... sadely my bike isnt that hi tech :p front disc rear i have a drum brake Sad

Pete. · Super Spammer Joined: 22 Aug 2006 Karma :

Oops - oh well, still worth saying Smile

____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good Very Happy