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PostPosted: Tue Jul 29, 2014 8:55 pm 
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Joined: Thu Nov 10, 2005 5:31 pm
Posts: 3699
Location: Surrey B.C. Canada
I did a bit more digging and found this.

Image

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PostPosted: Tue Jul 29, 2014 9:21 pm 
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Joined: Thu Dec 09, 2004 5:51 pm
Posts: 168
Looked for the link from bike rumor and could not find it. don't know what happened to it. I remember because I went to Enduros website and the bearings for Treks that they talked about was not on there site, just figured they were not yet ready for retail yet.


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PostPosted: Tue Jul 29, 2014 9:46 pm 
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Joined: Tue Apr 05, 2011 6:57 pm
Posts: 51
Location: CHicago
ironman1 wrote:
Enduro is coming out with a set of 2 bearing per side to allow 30mm cranks to be used on Treks 90 mm wide shimano BB. I'm guessing very small bearings and the 2 races per side to help distribute the load. I believe it was on bike rumor a couple of weeks ago.


Glad to see that someone else saw it too and I am not loosing it.


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PostPosted: Tue Jul 29, 2014 9:54 pm 
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Joined: Tue Apr 12, 2011 8:08 am
Posts: 2290
Location: Pedal Square
German "Cannondale Parts" shop has lots of crank spares, including a BSA BB (with axle) for Hollowgram cranks. The description says it is for Hollowgram MTB, but cannondale noob I am, I'm not seeing any reason to use it with a Hollowgram road crank. Shorter axles are available too. Unfortunately the parts have a very "Hollowgram aligned" pricing, if I may say so.

http://www.cannondale-parts.de/epages/6 ... 2KP094/%22

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PostPosted: Tue Jul 29, 2014 10:16 pm 
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Posts: 1466
Location: WALES,UK
Thats basically a Zipp VumaQuad BB with a MTB axle thats had the lip machined off, you'd need that length axle to run a road chainset on a BSA BB, your chain line and q factor are gonna suck :(

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PostPosted: Tue Jul 29, 2014 10:44 pm 
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Posts: 406
HillRPete wrote:
I'm not seeing any reason to use it with a Hollowgram road crank.


your chainline will be +2.5mm, as will your Q (+2.5 per side that is), and you will need more spacers, but it should all bolt up and work.


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PostPosted: Wed Jul 30, 2014 10:36 am 
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Posts: 2290
Location: Pedal Square
mentok: the axle has 132mm. They are also offering a 128mm one, but one would have to mod away the lip, I guess. Another €70 unfortunately, but I'm kinda tempted, as my CAAD4 project frame has BSA.

Edit: some more info. 122mm axle is available from cannondale-parts.de, and seems to work up to 73mm BSA according to below (plus spacers). The next shorter axle on the site is 109mm, wondering if that would work on a 68mm BSA BB.

I ended up getting a hollowgram SiSl crank to work on my 73mm BSA crankset using a 122mm MTB hollowgram spindle and Zipp 30mm BB cups. Had to jerry-rig it with shims though, not ideal but it works.


Damn why am I always draw to such tinkering. Really want to try now.

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PostPosted: Thu Aug 07, 2014 4:12 pm 
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Posts: 353
Location: Hull
Anybody know if a sram red chain set will work with a bsa30 bottom bracket?


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PostPosted: Mon Oct 06, 2014 1:27 pm 
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Posts: 2290
Location: Pedal Square
Very close to getting going on this (got left and right crank arm from ebay separately for a great deal). As per above, a 122mm spindle works on 73mm BSA with spacers. Since I want to try this on 68mm BSA, 5mm width are saved already. Now I'm wondering if I could get away with a 109mm spindle.

What are the narrowest external BB cups that, or are they all the same?

Edit: Hmm there seems to be a 114mm Cannondale/SRAM spindle as well. Could that be the one to use requiring the least shimming?

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PostPosted: Mon Jul 11, 2016 10:11 pm 
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Joined: Thu May 14, 2015 11:22 pm
Posts: 20
HillRPete wrote:
Very close to getting going on this (got left and right crank arm from ebay separately for a great deal). As per above, a 122mm spindle works on 73mm BSA with spacers. Since I want to try this on 68mm BSA, 5mm width are saved already. Now I'm wondering if I could get away with a 109mm spindle.

What are the narrowest external BB cups that, or are they all the same?

Edit: Hmm there seems to be a 114mm Cannondale/SRAM spindle as well. Could that be the one to use requiring the least shimming?


Did you ever figure this out?


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PostPosted: Wed Jul 13, 2016 8:50 am 
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Joined: Tue Apr 12, 2011 8:08 am
Posts: 2290
Location: Pedal Square
Buddysnack wrote:
Did you ever figure this out?

Didn't pull the trigger on any spindle in the end. Too expensive. Vuma BB cups for 30mm spindle compat also pricey, and my legs seem to be picky about Q-factor.

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PostPosted: Wed Jul 13, 2016 10:52 am 
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Joined: Fri Nov 08, 2013 7:11 pm
Posts: 180
http://www.ebay.com/itm/381424484972?_t ... EBIDX%3AIT

looks quite reasonably priced. :oops:


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