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Soma Double Cross build questions

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Soma Double Cross build questions

Old 11-10-14, 11:11 PM
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Soma Double Cross build questions

I am interested in building this frame up for my first CX bike, can anyone tell me what kind of BB this thing uses? I hate to sound like a complete noob, but I cannot find anywhere on Soma's site that explicitly says what kind of BB the frame accepts.

To me it looks like a BB90 press fit, but I guess it could be threaded....


Double Cross Disc | SOMA Fabrications

Is it possible for the bike to accept both?

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Old 11-11-14, 12:23 AM
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If get dollars to donuts it's standard threading, which does not fly with press fit. Also one of their generic faq questions answers with chasing bb threads. From there it would be matching your bb to your cranks.
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Old 11-11-14, 12:38 AM
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It has a conventional threaded bottom bracket. Great bike by the way; I love my soma doublecross.
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Old 11-11-14, 12:46 AM
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Agree. Its a very versatile frame. It can be many things not just a cx bike.
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Old 11-11-14, 05:25 AM
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Originally Posted by bikemig
It has a conventional threaded bottom bracket. Great bike by the way; I love my soma doublecross.
+1 I put 16,000 miles on my Double Cross. Great bike.
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Old 11-11-14, 07:40 AM
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Thanks guys, you've helped push me over the edge, I am going for it... not sure what in the hell I am doing as I have never built a bike. I figure if I am going to be a "real" cyclist its time for me to do it at least once. Is this the right place for me to ask questions regarding my build?

I planned on building my bike towards cross/gravel with a 46/36 crank, however I'm worried about not having the big big ring if I wanted to ride my bike for training in the summer. Is this is a concern at all? usually on my long rides the pace is pretty easy going nothing over 18/mph or so, and I think I'd be much more comfortable over most of the nasty chip seal if I could ride my soma with some road tires.... is this spot on or should I use a standard 50 ring?
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Old 11-11-14, 07:43 AM
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The mechanics forums is also a good place for advice. A 46/36 with an 11 small tooth cog on the rear will give you a pretty high gear; it's a really smart set up for a bike. I ended up using a triple on my bike (46/36/26).
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Old 11-11-14, 08:03 AM
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Originally Posted by bikemig
The mechanics forums is also a good place for advice. A 46/36 with an 11 small tooth cog on the rear will give you a pretty high gear; it's a really smart set up for a bike. I ended up using a triple on my bike (46/36/26).
Thanks! I'll head over that way!

Really excited to start gathering parts
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Old 11-11-14, 08:46 AM
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....last question and then if I have more i'll head to the mechanic's form. I found a FSA Orbit MX headset in my buddy's parts bin, would this work? It's practically new.... other than this frame/fork I am trying to stay on a budget. If not the boss has threatened divorce!
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Old 11-11-14, 09:13 AM
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anything you find that is the right size will fit and will work fine. It's a standard frame and any parts will fit. It'll come down to more of double crank/triple crank, rear gears, shifters etc. You could find an old mountain bike and build this frame with the parts if you wanted to. Mine had mtn components and road bar end shifters right now because they were what I had around. I plan on upgrade later but so far its been great.
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Old 11-11-14, 11:14 AM
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Originally Posted by BorrachoMatador
Thanks guys, you've helped push me over the edge, I am going for it... not sure what in the hell I am doing as I have never built a bike. I figure if I am going to be a "real" cyclist its time for me to do it at least once. Is this the right place for me to ask questions regarding my build?

I planned on building my bike towards cross/gravel with a 46/36 crank, however I'm worried about not having the big big ring if I wanted to ride my bike for training in the summer. Is this is a concern at all? usually on my long rides the pace is pretty easy going nothing over 18/mph or so, and I think I'd be much more comfortable over most of the nasty chip seal if I could ride my soma with some road tires.... is this spot on or should I use a standard 50 ring?
What is your budget for the shifters, derailleurs, wheelset and the cassette?
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Old 11-11-14, 11:19 AM
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When I first built up my Soma, I did it entirely from various "donor" parts that I either had in my parts bin or that I swapped for from buddies. It is a very standard bike so it is easy to build in this way. If you want to do this inexpensively, I'd look around for used parts and the only "new" parts I'd think about seriously would be the wheels.
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Old 11-11-14, 11:41 AM
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Originally Posted by Barrettscv
What is your budget for the shifters, derailleurs, wheelset and the cassette?
I have a SRAM force rear/front derailleur and a an sram apex 46/36, are those compatible with the right cassette?

I don't really have a budget that is a hard stop at any number. Just trying to spend as little as possible. Going with the disc frame probably means I am going to spend a ton of money on wheels from what I have been able to find.

....and man, people are really proud of their shifters.
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Old 11-11-14, 12:12 PM
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Originally Posted by BorrachoMatador
I have a SRAM force rear/front derailleur and a an sram apex 46/36, are those compatible with the right cassette?
Those will work together. If you don't have an urgent timeline, be patient on the shifters. A lot of people are wanting to move to 11-speed and hydraulics, so if you're willing to use 10-speed and cable brakes you should be able to find a deal eventually.
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Old 11-15-14, 02:34 PM
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The olny problem I've run into on mySoma is the FD I put on interferes with the rear fender. I used a MTN FD not road. I may install an XT FD I have in the bin and see if that gives enough room for the fender. I may also swap to a road compact double crank in the future.
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