GSXR front end - axle question UPDATED WITH PICS PAGE 2 HELP

[Khewett]

Just being doing a trail fit of my GSXR front end before it goes on the bike.

Discovered one disc is bent, another Motoliner trip on the way :evil:

the axle is the right width for the forks with no wheel in, but with the wheel in place the axle nut and axle do not sit flush each side but stick out about 4mm to get the wheel central.

I have a K2 wheel, are there a few types of GSXR axle.

Should point out this is on a pointy with GSXR 750 forks.

D I need a diffrent axle???

[21QUEST]

What wheel are you using ?
SRAD wheel(same spoke design as SV) or 'K' series wheel

Cheers
Ben

[Khewett]

I thought it was a K2 GSXR 600 wheel when i bought it, now I'm wondering if its a older wheel they have sent me...

In that case do I need a SARD axle to sort it, does a SARD wheel have smaller spacing between hub and fork leg?

This could be why my axle is sricking out each side?

[TSM]

Have you got the axle in the correct way?

[Khewett]

Have you got the axle in the correct way?

Yup tried both ways just to check :lol:

I must need a SARD axle for some reason, the wheel I think must not be a K series!

[TSM]

I think i read that this is to do with diffrent axles and years. I beleave that its not a problem as long as the disks are nicley centered in the calipers will give a good indication that the forks are ok. Not 100% but i remember lots of pages re that on SVrider.

[Robw#70]

take 3.5mm off the nut and al will be fine :lol:

[21QUEST]

Sorry , computer crashed(again) :roll:

...so does the wheel look like the SV one?

Just so I've got this right. You are usinbg K series forks and K series yokes. That being the case and assumming the wheel is an SRAD one , the axle assumming :roll: :lol: it's a 'k' series one is fine.

All that needs doing is centering of the wheel. With regards to how much of the nut/spacer you should have sticking sticking out , all I can tell you is that it's between 3mm-4mm. I think robw70 made it 3.5mm(I could be wrong).

Cheers
Ben

Edit: I was right then :lol:

[Khewett]

Sorry , computer crashed(again) :roll:

...so does the wheel look like the SV one?

Just so I've got this right. You are usinbg K series forks and K series yokes. That being the case and assumming the wheel is an SRAD one , the axle assumming :roll: :lol: it's a 'k' series one is fine.

All that needs doing is centering of the wheel. With regards to how much of the nut/spacer you should have sticking sticking out , all I can tell you is that it's between 3mm-4mm. I think robw70 made it 3.5mm(I could be wrong).

Cheers
Ben

Edit: I was right then :lol:

using;

K5 GSXR 1000 yokes
K3 GSXR 750 legs
K3 GSXR axle - I believe
K3 GSXR Wheel - I believe, it looks like a K one not a SARD one

The type of axle I have should sit flush on both sides and does so with the wheel out.

I fI just cut the nut that will place the wheel off center??


http://www.motorcycle.com/mo/mcsuz/1996gsxr750/jpgs/axle.jpg

[Khewett]

So are the spacers on the SARD axle smaller?

This would solve my problem, am nervous with the idea of holding my wheel centered via the pinch bolts on the fork legs.

[Khewett]

Spindle is this type;

http://i14.ebayimg.com/01/i/07/27/a5/07_1_b.JPG

Wheel was defo from a K2 GSXR 600

[21QUEST]

Hmmm.. if all the bits are what you believe them to be then it should all bolt up right . The spacer/nut I believe is the same. but the axle is slightly longer

Ok a couple of things to check

Measure and post up
1) length of the spindle

2)the length of the shouldered bit.
Then after comparing to a known k series axle we may have to go to no.4*

3)What's the distance between the two discs inside surfaces(wheel hub width dimension).

*4)If you can , carefully(very) pry out the dust seal the also get the number on the bearing. Just trying to cover all bases but maybe someone has stuck the wrong bearing(heightwise).

Cheers
Ben

ps No. 1&2 probably not the problem to be honest but no harm checking.

[21QUEST]

EDIT: I just realised I should have a couple of axles(SRAD and K) close by so have fished them out and taken some measurements.

SRAD length excluding shoulder = 178mm
'K' Series length excluding shoulder = 171mm

All measurements were taken using a tape measure but would be good enough to show what we have

Cheers
Ben

[Khewett]

EDIT: I just realised I should have a couple of axles(SRAD and K) close by so have fished them out and taken some measurements.

SRAD length excluding shoulder = 178mm
'K' Series length excluding shoulder = 171mm

All measurements were taken using a tape measure but would be good enough to show what we have

Cheers
Ben

Thanks mate.

The wheel is defo K2 but from a bike with RWU forks if that makes a diffrence.

Will measure my axle tonight.

Otherwise they both get trimmed with a angle grinder :twisted:

I sounds like I may have a SARD axle, but need a K series one, do you want to sell yours if thats the case Ban?

cheers
Kieran

[21QUEST]

Personally I would not go trimmimg anything.

It should bolt straight up the question is 'why is it not?' (ok I'm very curious as to why you have a problem :lol: )

While you are there(curious again) , could you measure the centre to centre measurement of the top yoke where the forks go through :wink: .

Cheers
Ben

ps: PM sent

[Khewett]

Personally I would not go trimmimg anything.

It should bolt straight up the question is 'why is it not?' (ok I'm very curious as to why you have a problem :lol: )

While you are there(curious again) , could you measure the centre to centre measurement of the top yoke where the forks go through :wink: .

Cheers
Ben

ps: PM sent

The axle grinder was a joke matey :wink: for the moment at least!

The axle fits perfectly with the wheel out, it the right length and sits flush both ends! Its when the wheel is in the captive spacers on the axle cause the nut and axle to stick out a few mm each side, to center the wheel properly!

The bearings in the wheel, spacer all look fine and properly fitted!

The wheel is K2 off a bike with RWU forks not USD forks, but I wasn't aware that should make any diffrence.

Will measure axle, yoke, and hub tonight and post.

[21QUEST]

The axle grinder was a joke matey :wink:

Phew..... :roll: :lol:

..for the moment at least!.
:shock: :? :wink:


Cheers
Ben

[TSM]

One question is, does the brake disks line up in the middle of the calipers easly?

[Khewett]

One question is, does the brake disks line up in the middle of the calipers easly?

Yes they do when the wheel is centred.

One of them is slightly warped so will get straightened tomorrow.

Its driving me :? mad now

[Khewett]

EDIT: I just realised I should have a couple of axles(SRAD and K) close by so have fished them out and taken some measurements.

SRAD length excluding shoulder = 178mm
'K' Series length excluding shoulder = 171mm

All measurements were taken using a tape measure but would be good enough to show what we have

Cheers
Ben

Ok my axle bar the shoulder is 169mm?????????

[Khewett]

The problem;

No wheel in place all sits fine and flush

http://www.tt-forum.co.uk/gallery/khewett/DSC00478.JPG

With wheel in;

http://www.tt-forum.co.uk/gallery/khewett/DSC00486.JPG

http://www.tt-forum.co.uk/gallery/khewett/DSC00487.JPG

Axle and nut sit proud a few mm to get wheel to centre. Captive spacers mean axle can be done up no more, wheel spins fine.

Another pic'

http://www.tt-forum.co.uk/gallery/khewett/DSC00488.JPG

Ideas anone is my axle the wrong type???

http://www.tt-forum.co.uk/gallery/khewett/DSC00483.JPG

Anyone help??

Cheers
Kieran

[21QUEST]

Safe to say we can take the axle out of the equation even though you got 169mm to my 171mm . ie it's correct

I'm thinking wheel bearings or the yokes center to centre measurements of yoke have changed.

I won't tell you what it should be just yet. I'll wait for you to take the measurement and we'll see what you come up with.

Cheers
Ben

[Robw#70]

Its the width of the bearings in the wheel that changes as well as fork spacing (7mm difference on combinations ive seen).
regardless of the length of the axle the length of the nut will effect where the centreline of the wheel is.

Centralise the wheel (fit calipers with no pads, discs will prob be .5>1mm out from centreline) and measure the gap between the lip of the nut and fork leg(3.5mm), get this amount turned off the nut, you can do the same to the shoulder of the spindle if you want it to sit flush.....................Or ask a grown up to do it :lol:

[Khewett]

Safe to say we can take the axle out of the equation even though you got 169mm to my 171mm . ie it's correct

I'm thinking wheel bearings or the yokes center to centre measurements of yoke have changed.

I won't tell you what it should be just yet. I'll wait for you to take the measurement and we'll see what you come up with.

Cheers
Ben

center of yoke-yoke 205mm

width of hub inside dust seals 134mm

[Khewett]

Its the width of the bearings in the wheel that changes as well as fork spacing (7mm difference on combinations ive seen).
regardless of the length of the axle the length of the nut will effect where the centreline of the wheel is.

Centralise the wheel (fit calipers with no pads, discs will prob be .5>1mm out from centreline) and measure the gap between the lip of the nut and fork leg(3.5mm), get this amount turned off the nut, you can do the same to the shoulder of the spindle if you want it to sit flush.....................Or ask a grown up to do it :lol:

this is my next step to be fair

[21QUEST]

Robw#70 is right in what he is saying but for me the point is that it should bolt straight on.

If the yoke centre to centre is the same as pre K5 then it can only be the
1)Wrong bearings(assmming you have a k series wheel) or
2) You don't have a 'K' series wheel ie you have an SRAD wheel.

Got a pic showing wheel spokes?

Cheers
Ben

[21QUEST]

Sorry a bit slow posting. The measurement for the wheel I was after was the distance between the inside surfaces of both discs.

For the SRAD it should be 130mm and the K series 128.

The centre to centre measurement for the K series up to K4(for sure) is 207mm.

I don't know how accurate the measure for the hub and the yokes are but those I have listed are.

Off to do some shopping now but I'll send you a private message when I get back.

Cheers
Ben

[Khewett]

Sorry a bit slow posting. The measurement for the wheel I was after was the distance between the inside surfaces of both discs.

For the SRAD it should be 130mm and the K series 128.

The centre to centre measurement for the K series up to K4(for sure) is 207mm.

I don't know how accurate the measure for the hub and the yokes are but those I have listed are.

Off to do some shopping now but I'll send you a private message when I get back.

Cheers
Ben

Double checked my measurments;

Yoke - yoke 209mm

Wheel hub 135mm

Axle 171mm


pic of the wheel;


http://www.tt-forum.co.uk/gallery/khewett/DSC00489.JPG


http://www.tt-forum.co.uk/gallery/khewett/DSC00490.JPG

Problem must be the wheel.......

Does this look like a SARD wheel to anyone, I think it must be not a K series one???

[Grinch]

looks a bit like a SV wheel to me... but what do I know...

[JMG]

I think thats an SRAD wheel, the k1> wheels have diamond shaped spokes.

[Khewett]

I think thats an SRAD wheel, the k1> wheels have diamond shaped spokes.

Boll%&ks was thinking as much!

In this case will it fit better using a SRAD axle?

[JMG]

Wait there, i'll just go and measure mine :D

[Khewett]

Wait there, i'll just go and measure mine :D 8)

you star

[JMG]

http://upload4.postimage.org/239933/DSC00478.jpg (http://upload4.postimage.org/239933/photo_hosting.html)

Don't know if that'll help?

[Khewett]

http://upload4.postimage.org/239933/DSC00478.jpg (http://upload4.postimage.org/239933/photo_hosting.html)

Don't know if that'll help?

helps a lot mate

My axle nut is also 57 but the spacing between the spacers when its fitted in with both ends flush (no wheel) is about 127- 128mm.

Therefore as I must have a SARD wheel if I get a SARD axle I should have the same measurments as you belowand thus me wheel will fit????

[northwind]

He's right you know. Quite embarrassed I didn't notice that, I've been viewing this thread with increasing confusion :oops:

I've often seen it said on SV Rider that there's no danger from simply centring the wheel and tightening the pinch bolts with the axle sticking out at either end. I wouldn't do it, myself, but thought that might be worth mentioning.

[Khewett]

So a SRAD axle and the same nut should sort my issue with the axle??

May have to stick a washer behind the calipers to space them a few mm from reading elsewhere.

[JMG]

IIRC the axle nut is the same for SRAD and K1> so the spacing will be the same whichever you use. I think i'd go for getting the axle turned down to fit as posted earlier.

[northwind]

Would getting the right wheel not be the fix? I know, not exactly cheap or quick but seems like it's only the hub width that's giving you problems.

[Khewett]

Would getting the right wheel not be the fix? I know, not exactly cheap or quick but seems like it's only the hub width that's giving you problems.

Would getting a SRAD axle not be the easist method rather than a new wheel, now the wheel is the right colour , etc???? Nothing else should be affected?

Looking at measurments above the axle should give me the extra width to accomadate the wider hub?

[21QUEST]

yep , you have an SRAD wheel.

You don't need an SRAD axle. What you have is what you need.

Fix is as outlined by Robw#70 although it is quite possible to use it without cutting it done. My second SV with a GSXR frontend done by one(if not the best) of the SV specialist came like that ie spacer sticking out.

Alternatetively you can just use a 3.5mm ring between the flange of the nut/spacer and the forks. If you want to do that (I may be able to sort that out for you tomorrow. Let me know what you decide to do.

Cheers
Ben

EDIT: It sticks as a result of the difference in centre to centre measurements of the SRAD and K series yokes and the height of the bearing from where it bottoms on the hub. The SRAD axle won't make a difference. Using that , you'll have even more ofthe axle sticking out as it's a bit longer.

[Khewett]

yep , you have an SRAD wheel.

You don't need an SRAD axle. What you have is what you need.

Fix is as outlined by Robw#70 although it is quite possible to use it without cutting it done. My second SV with a GSXR frontend done by one(if not the best) of the SV specialist came like that ie spacer sticking out.

Alternatetively you can just use a 3.5mm ring between the flange of the nut/spacer and the forks. If you want to do that (I may be able to sort that out for you tomorrow. Let me know what you decide to do.

Cheers
Ben

thanks everyone your stars

Ben - Would defo be intrested in a 3.5mm ring would neaten things up a lot.

Assume I may have to space the calipers a touch?

[21QUEST]

Nah , the calipers would be fine just bolted up.

As rob said earlier the would be off by a little bit(.5-1mm) but that is not a problem. Just 'back in' the pistons in the calipers(don't have to go right in) before mounting and pump lever to get them to the discs once everything is torqued up.

Cheers
Ben

[Khewett]

Nah , the calipers would be fine just bolted up.

As rob said earlier the would be off by a little bit(.5-1mm) but that is not a problem. Just 'back in' the pistons in the calipers(don't have to go right in) before mounting and pump lever to get them to the discs once everything is torqued up.

Cheers
Ben

Cheers fellas,

Your all owed a pint or two in my book.

Im at Motoliner 1st thing to get the disc straightened so may see if they can take 3.5mm of each side of the axle for me.


Neater than using my angle grinder :twisted:

[21QUEST]

................ so may see if they can take 3.5mm of each side of the axle for me.


Aha...sounds like a good plan :wink:

Cheers
Ben