411 grams ready to run but I will squeeze out a little more, want to see 399 gr.

Thanks for the BB tips, I will widen my search a more, priority 1 is low weight, durability is second because I can´t use all my 5 bikes everyday.

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Experimental Prototype

if I were you I would go for dura-ace bb. mine weights 171 g.

great work!

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I used to do a little but a little wouldn't do it

Great tip, 171 grams are not bad, what´s the thread I have on my MTB?
Roadies uses a little different threads?
I need 73-113 or something like that.

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Experimental Prototype

dura-ace was made in two versions. one is for wide bb shell /70mm i think/ and has italian thread /won't work with mtb frame/. second one, which i have is 68mm wide and has the kind of thread that all mtb bb's have.

how wide is your bb shell?

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I used to do a little but a little wouldn't do it

Unfornutately I drive GT´s with 73mm shells them all.

BUT I have little plans in my head that involves 952 axles and other cups for sealed bearings like them in integrated cranksets.

I managed to get the crankset to 401 grams.
Not too bad for adesign that´s nearly 10 years old.
They´re stiff too in standard form, in tuned form quite stiff I think.

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Experimental Prototype

I don't know is this a good place to ask,but i have a question about XTR 952 cranks and BB for them. I have one of those and BB-M5500. It's a road BB and it should work with those cranks,but i didn't work good. Left crank arm is moving a little bit when I push harder and sounds horrible. Whats the good BB alternative for that crank( XTR 95x BB,or some other road one)??

Thanks

Martin

Can you repost the last photos as they have disappered!

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"I could have done this job myself in five minutes, but as things turned out I had to spend two days trying to find out why it had taken someone else three weeks to do it wrong."

I also ground off the sharp edges on my M952 cranks. I'm running 1x9 with a 30t from HBC and an Ultegra BB.

Weight and stiffness are excellent for the $$.

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Trek 5500 - 13.75lbs on a $1400 Budget
20 gram 1x10 chain guide

I have XTR 952 Crank arms and i would like to buy Dura Ace BB,is this a good choice?? Will be working good??

Thanks

Martin