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Freezer
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Discussion Starter · #1 ·
I'm setting up a Tomac Type-X as a 1x9 and need some recommendations for a (very) light crank/BB combo. Looks like in general the hollow BB cranks are lighter than cranks+square taper BB's, but they don't allow for chaninline adjustment. Is being able to adjust the chainline important with a 1x9 system? Any recommendations for a crank/BB/chainring 1x9 combo that is quite light?
 

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I can't weld
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547 Posts
Centering the chainline on the cassette is the most important with a 1x9, but most cranks are already really close and you can be one gear left or right of center without much problem. I actually prefer a chainline just left of center because I think they are less likely to drop the chain when its on the largest cog.

Check this thread for LOTS of 1x9 discussion. http://forums.mtbr.com/showthread.php?t=158959

I started it 4 years ago and it now has ~960 replies. Skip to the last few pages for the most recent ideas.

A lot of guys still use ISIS BBs for the wide crank selection, but the external BBs certainly have a weight advantage. I've been very interested in the new crank from Fifteen.G.
http://perigeum.com/bythehive/?page_id=1012

The good news is that all the development from the singlespeed community bleeds over to 1x9 nicely.
 

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Freezer
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Discussion Starter · #3 ·
Thanks much, Indiefab; good info. I've also been looking at the Fifteen G crank. Other option is the ENO, which I have on a Lynskey SS and it works well. The ENO with a Phil White Ti BB is actually lighter than the Fifteen G crank and has a lower Q-factor (160 vs 168), but the massive BB on the Fifteen G is pretty appealing.
 
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