Pit Bike Club

oldskoolnick · 27-12-2011, 05:32 PM

I have some used 35mm shivers on my stomp and i'm under the impression they need a good service or possibly a rebuild.

Firstly - i've had a chat with a mate of mine who has had loads of sets of these and regarding the 'sag' when you pull the front end up, he said they all have a tendency to do this?

However - had the front wheel off today and had play around with the fork legs, i manually compressed both sides and where one side was really smooth and made no noise at all, the other side made what can only be described as a squelching sort of noise? It's obviously the oil in the fork leg, but why does only one side do this?

both sides rebound ok but only one was silent?

Now as you can tell, don't really have a clue about mx/minibike forks so any help is much appreciated.

i did however notice on the top of each fork leg there is some way of adjusting via a flat head screw... One leg has the letter 'C', which i understand to be compression? and the other 'R'... rebound?

So my other question is.... are both the legs different internally, i.e, maybe this can answer for the different noise made by one leg when compressed?

I hope this makes sense! the forks will be fine for now as they still feel plusher than the standard stomp setup, but if there is definatley an issue with them i would like to get them sorted out properly.

Thanks in advance guys!

James116 · 27-12-2011, 05:55 PM

One legs which u can hear squelching is the rebound damping

turn the rebound down and u won't hear it as much

perfectly normal

Rebound is how fast the fork returns
Compression is how much for your need to make the front end go down.

oldskoolnick · 27-12-2011, 05:57 PM

Quote:

Originally Posted by James116

One legs which u can hear squelching is the rebound damping

turn the rebound down and u won't hear it as much

perfectly normal

Rebound is how fast the fork returns
Compression is how much for your need to make the front end go down.

James116 · 27-12-2011, 06:07 PM

I have the same fork and they're sweet

noise as well

Juvy · 27-12-2011, 06:09 PM

Quote:

Originally Posted by oldskoolnick

the other side made what can only be described as a squelching sort of noise? It's obviously the oil in the fork leg, but why does only one side do this?

My both legs do that and it sounds like oil is circulating. And forks are brand new. Check your other leg to see if it has oil in it!

oldskoolnick · 27-12-2011, 06:11 PM

Quote:

Originally Posted by Juvy

My both legs do that and it sounds like oil is circulating. And forks are brand new. Check your other leg to see if it has oil in it!

by removing the top of the fork leg?

Juvy · 27-12-2011, 06:21 PM

Quote:

Originally Posted by oldskoolnick

by removing the top of the fork leg?

Yes. Unscrew top bolt and slide a leg down to see how much oil it has. I'm not quite sure on oil level in these forks. I didn't replace oil in mine yet. But if you do both you can compare one to another!

oldskoolnick · 27-12-2011, 06:29 PM

Quote:

Originally Posted by Juvy

Yes. Unscrew top bolt and slide a leg down to see how much oil it has. I'm not quite sure on oil level in these forks. I didn't replace oil in mine yet. But if you do both you can compare one to another!

Thanks mate i will check this out tomorrow.

i take it you can't just stick any old oil in these either?

If you have the manual they come with would much appreciate it if you could have a quick look through when you have some spare time to see how much and what type of oil should be in there.

Ta!

Juvy · 27-12-2011, 09:05 PM

Manual!

k80m_paul · 02-01-2012, 05:26 PM

so going by the manual, how much oil are you puttinh in your forks?
the only thing i can think of is it could be 7.5 fl oz? which is near 220ml, isn't that quite a lot?

never mind, done a bit more searching and found the 7.5 is the stock weight oil, and they take around 230ml