Quick question..

[st3v3]

When a bike has a front ender and forks etc are mashed, how can you tell if the yolks/frame is ok?

[Ichy]

Unless there is physical damage, cracks, damaged paint etc it won't be easy.

I can only suggest measuring various features using the swingarm mounting point as a reference.

[st3v3]

Sorry, I meant Headstock, not yolks.

[iooi]

Would need to go an a jig at a guess to see if angles were still correct and maybe a xray?? machine to see if the metal had been overstressed or cracked.
Guess its cheaper just to get a new frame.
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Just because my bike was A DIVVY, does not mean i am......

[Whosthedaddy]

Before you start slashing the cash on the shiny bits and bobs, get the frame checked over on a proper jig. If the frames cracked or warped and something happens as a result of it, it might not just be you that get hurt.

If its straight then its a more than reasonable repair job, if its knackered then it may save you wasting money.

The 7R was on a jig and straightened for not a lot of £.

How much does your piece of mind cost?
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Current : MSX 125 Past : CBR 900RR Monkeybike : c50 LAC : ZXR750 H2 : FZR600 : ZX7R P3 : YW100 : TRX850: Trophy 900 T309 : GSXR 600 L0: Monkeybike : XJ6S Whosthedaddy

[st3v3]

Cheers fellas.

New frame not an option, this one get's fixed or I get a car, I've had enough. Piece of mind, obviously cheaper the better but I'm more than happy to pay to make sure it's 100% safe. Last thing I'd want is for something to happen and a kitten get's it.

How do I find out about a Jig/X-ray? How much am I looking at?

[Whosthedaddy]

Off the top of my head, the 7R for assessment and straightening was £165 maybe plus VAT. Got the receipts upstairs but really can't be arsed to go and look as naked birds on TV.

Dye and X-Ray, have no idea.
____________________
Current : MSX 125 Past : CBR 900RR Monkeybike : c50 LAC : ZXR750 H2 : FZR600 : ZX7R P3 : YW100 : TRX850: Trophy 900 T309 : GSXR 600 L0: Monkeybike : XJ6S Whosthedaddy

[iooi]

I would ask around some local dealers.
____________________
Just because my bike was A DIVVY, does not mean i am......

[st3v3]

Cheers, been more than helpful. Will dish Karma out when I can.
No worries WTD, I understand lol.

[Whosthedaddy]

[st3v3]

Those measurements are nothing I would hope to understand.

I'm looking into the nearest place to have it done which may be Dewsbury (according to Google) and I think it's worth it tbh. I'd rather know it was safe than worry over every bump/pothole etc if it was 'time'.

Someone has mentioned some kind of plating though, welding a set of 'plate' bits over the welds of the headstock decreasing the stress on the headstock welds and putting it on the new bits of metal.
This is also an interesting and logical idea.

[Kickstart]

Hi

If you really want to do it then try:-

https://www.rapidbike.co.uk/

John Warrington is fairly local to York and has a good reputation.

A steel frame (like yours) is FAR easier to straighten than the alloy frames of most bikes.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[st3v3]

I'll do it as long as it's worth it.

I've checked the welds all around the headstock and they seem as was visually, checked around inside after removing yolks and can't see any cracks or anything. Would I be able to noticed anything that was hairline? I guess not....?

Thanks Keith, I'd also found a place in a unit type thing on the net this morning in Canary Wharf, Malton, same place? Will ring on Tuesday and check prices etc..

[Kickstart]

Hi

You might see paint cracked off on a bend, but sometimes not.

Being honest finacially it will not be worthwhile. The amount it wil cost you to get the NS checked and straight along with the other bits you will need it will be cheaper to buy another NS.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[Ichy]

I agree with Keith, the cost involved just doesn't seem worthwhile. I've frontended a few bikes in my time but never bothered checking the frame. You'll know the first time you ride it if there is something wrong. Guess its a personal thing?

You can check for cracks with food dye and chalk. Just cover the weld or whatever in dye, leave for a bit, wipe it all off then cover in chalk dust.

[tutton]

Pretty sure that needs ultra scanning
like they do with baby's
and all the parts which give sound back to the reciever are cracks.

Or thats what they do in car manafacturing
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Past: '05 Peugeot XPS '99 Aprillia RS125 '94 FZR600R
Current: '02 ZX636 A1P '51 CCM R30

[st3v3]

The only reason I was considering the whole straightening thing was because I intend to do my test on it then get rid, I wouldn't want some young kid or kitten to have something bad relating to this going wrong for them. It seems logical to me if there was anything wrong, it would be visible outside or in, I've checked both and there's nothing different now to before. Agreed it's not particularly worth it spending all the cash, but I want it to be right, and better learning on this than some big bike that would cost twice as much.

Need new bearings now...... They're hard to find when small and fall out...

Thankies mucho for all the input. (my PC won't let me rate for some reason at the mo but Ill sort it).