[Closed] Check my crack out

yep - thats goosed!

gaffa tape and tie wraps'll sort that.....

The chainstay protector looks a little ironic now.

bloody hell, what year is that frame?
More importantly, what were you doing with it?

That'll t-cut out, wouldn't worry myself 😀

2009 frame and I was riding it as it was designed for DH Marathon/Enduro.

Nothing 'happened' that made me stop. Just rode a trail then back to car and noticed wheel wasn't aligned.

Wouldn't worry about it. We can see from the photo that the gear cable is holding everything together!

I've a friend with a Meta 5 frame where his top tube has cracked, but the swingarm is fine, but its an older version - will that fit?

Looks like this one.

I thought all of the 09 ones were supposed to have been sorted? or is that the 10 ones?

More importantly, what were you doing with it?

Attacking it with an angle grinder by the looks of it.

i've fixed worse than that with a shoe lace, an innertube, and some leccy tape.

i'm not kidding.

That'll t-cut out, wouldn't worry myself

Heh! Bit of Polyfilla; job's a good'un! 😀

[fractologist mode]That is interesting, it does not appear to be near a weld or any other stress raiser other than the change of section and angle. It would be very itneresting indeed if a fatigue crack started there without any local discontinuities. Or can you show us more details, maybe there is something that I cannot see from this pic. [/end fractologist mode]

it is at the main stress point though, half way between the two pivot points

good going Rob, you do ride bigger hills than most though

Should be under warranty if it is a 2009?

Send Madison pics of the Complete build (if you are in UK), plus a pic of the Serial Number (and the cracks) and they will raise a claim with commencal.

Got my replacement 2010 frame in 2 weeks (although mine was gone in the shock mount welds; not [i]there!!![/i] You may just get a swingarm. Check for those telltale signs in the welds.

Well without doing some stress analysis then its not necessarily obvious where you would find peak stresses. If it cracked there and its a smooth continuous surface then it has implications for the design, the manufacture/quality of the material or the way he used it, either way its very interesting.

could be the end of the butting for the weld? A lot of cracked frame's i've seen near the headtube go where the butting is

*stipend*

i'm no engineer, just bored.

Obviously without a proper examination its just conjecture but there may well be something round the back we cannot see. I want to see more I am intrigued now. I do love a crack..

rhs, about time you broke something...... 😉

Higher strength aluminium alloys do not always have higher FRACTURE TOUGHNESS.

http://emeraldinsight.com/Insight/viewContentItem.do;jsessionid=B098E158DF7197C11F7B9EA2CEB39EA8?contentType=Article&contentId=1682514

"THE highest strength wrought aluminium alloys currently available are based on the aluminium-zinc-magnesium-copper system, and such alloys offer considerable potential for weight savings in airframe structures. However, these alloys have presented problems in service, arising from deficiencies in fracture toughness and fatigue crack propagation resistance together with a susceptibility to exfoliation corrosion and stress-corrosion, which have led to restrictions being placed on their use by individual aircraft companies and by procurement authorities in a number of countries. This situation has led to the wide-spread use in the UK and continental Europe of lower strength alloys of the aluminium-copper-magnesium-silicon type, even though significant weight penalties are incurred in the process. There has been a more general acceptance of the high strength aluminium-zinc-magnesium-copper alloys in the USA, where problems associated with their use have been partially alleviated by a willingness to replace components at short intervals, but even so during recent years a trend has developed there towards the use of lower strength versions of these alloys in attempts to improve airframe durability and reliability. "

Cheers Dancake: Have started process already.

[i]good going Rob, you do ride bigger hills than most though [/i]

Um..it was in Ae Forest, Scotland. 😉

Send us some more piccies!!!!

Nightmare, better than the leg though. lol.

Its ok. Things break. Thats the way it is.

No more pics I'm afraid

Ahh well.

Yeah at least you can buy a new frame, broken leg is mucho worse...