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PostPosted: Mon Jul 16, 2012 3:11 pm 
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Joined: Thu Sep 29, 2011 1:19 am
Posts: 104
So I am building an old Klein Quantum II frame and it has the pressed in square taper BB. Are there any current or previous lighter weight cranks that I can use with this? My other idea is to have the frame threaded for a GXP type BB.


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PostPosted: Mon Jul 16, 2012 4:06 pm 
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Joined: Thu Sep 30, 2010 3:32 pm
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Location: S.E. TN
The 1st Storck Powerarms by THM were square taper, I believe.


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PostPosted: Mon Jul 16, 2012 4:10 pm 
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Joined: Wed Feb 02, 2011 3:48 am
Posts: 1413
Storck Power Arms:
Image
I think you can also get Ti spindles for press fit Kleins from Phil Wood.

eh, lechat beat me to it.

Tune Bigfoot is one of the lighter options too:
Image


Last edited by jooo on Mon Jul 16, 2012 4:14 pm, edited 1 time in total.

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PostPosted: Mon Jul 16, 2012 4:12 pm 
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Joined: Thu Oct 13, 2011 5:25 pm
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Phil wood will also make press-fit external cups if you want to go that route.


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PostPosted: Mon Jul 16, 2012 6:07 pm 
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Joined: Fri Jun 25, 2004 8:32 pm
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Location: the Netherlands
Extremely lightweight would be a bit over the top since the frameset isn't that light. You'll need a crankset that is suited for jis tapered axles. As mentioned above the tune bigfoot in black would be a nice option. Bit heavier but matching the frameset would be a dura ace 74xx crankset (the one with the ti axle bolt). I had a propeller ti crankset (at least I was told that it came from fly sports) which looked sweet but that would be hard to optain nowadays (and in the end it cracked).


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PostPosted: Tue Jul 17, 2012 4:14 am 
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I talked to Phil Wood today and I think I will go that route to use a Sram Red crank.


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PostPosted: Wed Jul 18, 2012 3:41 am 
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Posts: 248
I have a vintage 2003 Campy Record crank. This is a collector's item since it was the first carbon crank Campy made. As such, the chainrings are made in Italy (not any more) and the carbon is uncharacteristic (for Campy) 3K weave. As it uses square taper, if I ever installed it I would use a Phil Wood Ti BB. Pretty pricey, but weight is around 130 gms I think. Plus the crank itself weighs 519 gms, so a surprisingly light setup for something so antiquated.


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PostPosted: Wed Jul 18, 2012 3:50 am 
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Joined: Sat Jun 13, 2009 4:02 am
Posts: 1980
Location: NoVA/DC
chainrings may have been made in italy but those arms were made in speedway, indiana.
about the klein frame, reset racing also does conversion bbs for kleins, in hollowtech, gxp, both octalinks, and square of course.
http://www.reset-racing.de/


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PostPosted: Wed Jul 18, 2012 6:47 am 
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Joined: Sun Jan 06, 2008 4:34 am
Posts: 20
Thanks for posting this question. It's one I've wanted to ask for some time.

I've got nothing but square-taper compatible cranks on my bikes and really am happy with all of them.

The Paul's crank won't work for you, as it is only available for single-speed or fixed-gear applications. It's heavy, really pretty, and really well built. Here's their Web site, just for fun: http://www.paulcomp.com/rdcrank.html.

The Middleburn RS 7 is really pretty, stiff, but a bit heavy. It is a very versatile crank, but isn't available with 172.5 mm arms and was designed with off-road intentions: http://www.middleburn.co.uk/cranks_rs8_&_rs7.php.

The White Industries crank is a really great idea. It's stiff and has a whole ton of options available for rings; however, they are propietary. It's a bit hefty for the project you're intending, but I've been pretty pleased with mine: http://whiteind.com/cranks/roadcranks.html.

Finally, the Specialites TA cranks are ones to consider. I've got the Carmina, and am really happy with it. You can change out the spiders and there are rings available for it in virtually every size. It's probably the stiffest of the bunch and the lightest of the ones mentioned here (not in the same category as the Stork). http://www.specialites-ta.com/gb/manivelle-vortex.html.

I've tried the Tune BigFoot and was pretty disappointed - it wasn't very stiff, creaked like an arthritic's knees, and didn't seem very reliable.

Stronglight also makes a square-taper crank (not available in black, as the others are).

Like others have said, the best of the bunch is probably the early generation Dura Ace. That was probably the best crank I'll ever use.

Thanks again for posing this question. I'm excited to hear your thoughts about moving to SRAM with the Phil Wood bottom bracket.


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