Guardian angel working overtime....

**El Dopa** · 13th April 2008, 14:18

Just had a bit of a narrow escape. Need to vent.

Turns out that a Speed Triple isn't supposed to be used as a motard, especially when you weren't expecting to stick your foot on the deck mid-corner....

Long story short - 3 corners into my very first ride on my 2nd-hand-but-new-to-me bike, the LH footpeg assembly saw fit to part company with the rest of the bike. The toes on my left foot tucked under and ripped the top of the boot open.

Bike stayed upright and I stayed on it, so I'm fine apart from some bruising on the top of my foot. But I'm feeling a bit sick now thinking about what could have happened.

Any mechanical engineers out there with any knowledge of stress fracture analysis?

**El Dopa** · 13th April 2008, 14:46

Pics attached.

**Devil** · 13th April 2008, 14:58

Farkin hell!
Thats not right!

**Usarka** · 13th April 2008, 15:07

Lucky you werent wearing jandals.....

ouch.

**Katman** · 13th April 2008, 15:10

Is that the shitiest casting you've ever seen in your life or has that been welded before?

**Blackbird** · 13th April 2008, 15:12

Originally Posted by El Dopa

Any mechanical engineers out there with any knowledge of stress fracture analysis?

There's some slight polishing round the outside edge of the fracture which suggests that cracking has been present for some time - a classic stress fracture although you'd need a magnifying glass or microscope to confirm it. Whether this has been caused by a previous impact (crash, dropped whilst stationary etc) or not I can't tell. If it's second hand, I wonder what its history is? Any slight tell-tale marks anywhere else on that side of the bike? (bar end, mirror or elsewhere?

Normally, I'd expect parts like this to have been pressure die cast but if they have been, the quality isn't flash as the pitting which you can see in the close-up look like gas release whilst in the molten state. That's unusual for pressure die casting. Maybe it's a weld repair. They can also act as stress raisers.

I'd certainly be wanting to look closely at your other peg too, just as a precautionary measure.

**McJim** · 13th April 2008, 15:15

That's an amateur repair gone wrong. That is not triumph standard casting. If you have the spare dosh try and invest in some after market cnc machined rearsets.

**Macstar** · 13th April 2008, 15:19

If I were you I'd also be thorougly checking the rest of the bike...

**blacksheep** · 13th April 2008, 15:21

that been weld repaired very poorly imho

**YellowDog** · 13th April 2008, 15:40

Why don't you talk to the guy who sold to you?

**tri boy** · 13th April 2008, 16:23

Yep. Shitty weld/patch up job.
Glad your okay. Could of been nasty. (WOF/LTSA may be interested in this. Poor repair, non certified welding etc) up to you to push it further or not.

**Blackbird** · 13th April 2008, 16:30

Originally Posted by tri boy

Yep. Shitty weld/patch up job.
Glad your okay. Could of been nasty. (WOF/LTSA may be interested in this. Poor repair, non certified welding etc) up to you to push it further or not.

If you want to take it further but discreetly, PM Freebird. He's the senior mechanical engineer at Land Transport.

**PrincessBandit** · 13th April 2008, 16:58

Originally Posted by Blackbird

There's some slight polishing round the outside edge of the fracture which suggests that cracking has been present for some time - a classic stress fracture although you'd need a magnifying glass or microscope to confirm it. Whether this has been caused by a previous impact (crash, dropped whilst stationary etc) or not I can't tell. If it's second hand, I wonder what its history is? Any slight tell-tale marks anywhere else on that side of the bike? (bar end, mirror or elsewhere?

...
I'd certainly be wanting to look closely at your other peg too, just as a precautionary measure.

Without reading all the posts I showed my husband the pix (he's a mechanical engineer) and he said exactly the same as you - basically the result of a previous fracture. So glad to hear that your g-a did their job!