paulkilroy wrote:Look keo blades seem to have no issues with Ti spindles -- at least I can't find many complaints about them..
Appreciate the response, curious what your background is with them...
I have thousands of Km's on my very well used(before me) Keo Blade Ti's. Zero issues
MyM3Coupe wrote:Not a good material for spindles.
Similar as others - I have great vibes with Campagnolo Ti spindles pedals. While not answering the question about shimano pedals I just needed to join the others being vocal that Ti spindles are very worthy on pedals.
Shimano DA pedals use the spindle as part of the bearing race. Ti isn't a great material for bearing races.
Look pedals use cartridge bearings, which run off their own races and are in turn mounted onto their Ti spindles.
I have a pair of 35$ Ti spindles on my Speedplay Zeros, they have been ridden plenty hard and crashed a couple of times and are holding up just fine.
spud wrote:^ to do that, the section would have to be turned down to a smaller diameter - might introduce unwanted flex, or produce a stress riser in the spindle. Ti is not so forgiving of stress risers.
Yes, it would need to be turned down smaller, but not much. If the steel collar can be fully supported it could be made quite thin. Proper heat treating would be key so that it's not too brittle and breaks but hard enough to withstand the bearing loads. It still could be problematic but without knowing the dimensions it's hard to say. Ti tolerates threads and it's tough to produce a worse stress riser than threads I don't see that being the issue that makes this not work.
I'm 60kg, and this was purely road use.
So, sadly, back to the steel Shimano ones.
Not felt inclined to try the Chinese shyte that's widely available as they can and will only be worse at best, and unsafe at worst.
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