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Ti-axels


LauraPalmer

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Hello!

Has anyone snapped his ti-axles at the more and more popular getting MG1 ti Pedals?

If so, how long have you been running them, whats your weight, how much do you ride and what´s your riding style?

or

How long have yours been flawless so far? als with age of pedals/weight/riding frequency/riding style please!

I´ve been riding mine since about a 3/4 year and have just started thinking... I weigh a little over 80 kg, ride at a quite high level, but avoid things like big drops, big drop gaps etc - apart from that i hit it with "big moves at my level" about 4 times a week for a few hours...

cheers w.

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I run ti axles on my mg1s without any problems, Im only a small rider though and do go big (cos Im a pussy :$ ), I weigh about 75kg.

The way I look at it, the axles are 6al4v titanium with a yield strength (the point at which it starts fail) of around 925 Mpa compared to a yeild strength of 435 Mpa for chromoly steel. Safe to say Im not worried that they might snap :)

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The way I look at it, the axles are 6al4v titanium with a yield strength (the point at which it starts fail) of around 925 Mpa compared to a yeild strength of 435 Mpa for chromoly steel.

wow - now that´s really interesting! lighter but stronger - also concerning duarbility!? if just the whole trials-world would be like that... i rode a set of MG1s with cromoly axels for about 2 or 3 years, now a beginner rides them, still going strong, so maybe i really shouldn´t think too much about it...

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I run ti axles on my mg1s without any problems, Im only a small rider though and do go big (cos Im a pussy :$ ), I weigh about 75kg.

The way I look at it, the axles are 6al4v titanium with a yield strength (the point at which it starts fail) of around 925 Mpa compared to a yeild strength of 435 Mpa for chromoly steel. Safe to say Im not worried that they might snap :)

Although you are right in your final statement, that you really shouldn't worry about breaking them, your statement before isn't strictly true.

They may not have used Ti6Al4V (although it is the most common in the bike industry) and the standard axles are a stainless steel, not chro-moly steel ASFAIK. I'd also be very surprised if they used a steel that wasn't stronger than Ti alloy (which are pretty easy to find believe me).

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google titanium to get a scientific view. you will find lots of reading and may fall asleep but as far as i can gather you can use less titanium to get the same strength of steel and the same amount would be stronger and lighter, hence the price.

to cut a long story short i wouldn't worry at all.

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Although you are right in your final statement, that you really shouldn't worry about breaking them, your statement before isn't strictly true.

They may not have used Ti6Al4V (although it is the most common in the bike industry) and the standard axles are a stainless steel, not chro-moly steel ASFAIK. I'd also be very surprised if they used a steel that wasn't stronger than Ti alloy (which are pretty easy to find believe me).

True, I was simplifying it alittle :$

I was quoting for 4130 chromoly (typical steel frame building material) which is in reality not much stronger than mild steel, there are other tougher alloys of course, much like the difference between CP titanium and 6al4v :)

In my experience of working with stainless steel, in general it isnt quite as strong as mild; not much in it mind.

3al2.5v titanium is typically the base titanium alloy used for frames because of its weldability and characteristics that lend it to frame building (inline with 4130 chromoly) whereas 6al4v is used for components and bolts due to its far higher strength.

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I was looking on a website which sell's Dmr V12 Titanium Axel's and it said that the Maxinium rider weight is 13 Stone,

That's a different manufacturer though, so it's a different design and possibly a different material (or at least different material supplier)

That won't completely be true... putting that means they get out of a few more warranty replacements.

Your average Ti alloy is a little bit weaker (cm^3 for cm^3) than high grade steel, so someone at DMR has taken note of this and recalculated the maximum weight (not forgetting DMR is most popular among dirt jumpers).

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Your average Ti alloy is a little bit weaker (cm^3 for cm^3) than high grade steel, so someone at DMR has taken note of this and recalculated the maximum weight (not forgetting DMR is most popular among dirt jumpers).

Do you really think they use EN24 for pedal axles? :D

Even so its yeild strength is typically less than 6al4v unless in W, X, or Z condition.

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That's a different manufacturer though, so it's a different design and possibly a different material (or at least different material supplier)

Your average Ti alloy is a little bit weaker (cm^3 for cm^3) than high grade steel, so someone at DMR has taken note of this and recalculated the maximum weight (not forgetting DMR is most popular among dirt jumpers).

They would've almost certainly underestimated the strength of it, purely for safety.

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