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Build: 2014 S-Works Crux - you pals wanna join the fun?
I just got a NOS 2014 S-Works Crux frameset yesterday. It's been sitting inside someone's storage for like 10+ years. I am building it up as we speak, you pals wanna join the fun? :p
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Hit the first road block
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Why why why?....why is it every time I got stumped in a build it has to be some nutty job bottom bracket standard??! I always try to build a bike up with whatever parts I have at hand and if that works out, I can usually finish a build within a day or two. But here we got another BB standard that requires something special. https://www.c-bear.com/en/blog/osbb-...ecialized-bike According to Specialized website: https://www.specialized.com/us/en/s-...r=149306-49780 BOTTOM BRACKET OS integrated, CeramicSpeed sealed ceramic bearings I want to use this crankset: SRAM Red 11 speed BB30 PF30 - short spindle What do I need to make it work? https://live.staticflickr.com/65535/...5765609e_h.jpg |
At least it doesn't have that very short lived weird rear end spacing/dish that specialized did for a year or two.
Imagine buying a 2024 frame in 2034 and trying to find the various proprietary parts that manufacturer's are using now? |
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Like BSA bottom brackets? Standard derailleur hangers? Off the shelf headsets from wolf tooth, or cane creek? . |
Just use the BB30 bearings and you are good.
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This is looking interesting, do you have the whole build planned out and ready to assemble or is it still in flux?
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You may also want a BB30 wave washer to eliminate any difference in the spindle length and the bearing spacing. I have an older Crux with the OSBB, using an S-Works crankset, and I needed a wave washer to eliminate a bit of side to side play.
Edit: I see now your crankset has a preload ring, so shouldn't need the wave washer. Doh. |
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This is 46 x 61mm OSBB. Hambini has this to say about it: https://www.hambini.com/specialized-...neering-guide/ This is a shortened version of PF30. It uses the same type of cups to encapsulate the bearings which then push into the bike frame. The bearings are usually 6806. it was designed for 30mm axles. This is technically a poor standard because the bearing stance is very narrow. It lends itself to quite a lot of flex which would require significant material in the bike frame to regain the lost stiffness. OSBB in this guise has the narrowest stance of any modern BB standard. https://www.hambini.com/wp-content/u...-2048x1583.png |
Internal Routing Galore
There are holes coming out of every corner, I am living in internal routing hell....
:D I have the routing tool but it was hardly ever used, I guess I will be doing a lot of practice soon... https://live.staticflickr.com/65535/...72e703b1_b.jpg https://live.staticflickr.com/65535/...5f30f85d_b.jpg https://live.staticflickr.com/65535/...30f20684_b.jpg https://live.staticflickr.com/65535/...5b81fea6_b.jpg |
I have one of these, bought off a local guy brand new as a warranty replacement in 2015. Its still rolling and I cant kill it. Its been great for mixed road/gravel rides - only real downside is that the max tire size is going to be ~38mm, on a 20mm internal rim and the internal cabling can be fussy. Just be patient and chase the cable paths with liners - its really only the chainstays that are a hassle.
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If you want to go with a GXP or Shimano crank, you can use the delrin adapters and these work fine, or the wheels mfg thread together BB's which also work fine. |
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Yup. Di2 11 speed - 11-34 cassette Mavic allroad elite UST wheelset Pathfinder Pro 38mm tubeless Specialized Hoover Riser Bar 44cm Ritchey seatpost WTB Pure V saddle SRAM Red crankset And lastly, BB7 Avid mechanical disc brakes - please don't kill the messenger - I know for some of my pals here, this is junk but I have discovered with high compressionless cable, they worked and stopped fine. The only parts missing and to be ordered: BB30 bearings Specialized Deraileur Hangar |
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North Shore Billet does a derailleur hanger for these - a bit spendy but worth it, the specialized ones are apparently made of butter. |
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Tire clearance: I tested with 38mm Pathfinder - looks like it will be fine with using my favorite gravel tires 40mm Explor' MSO...or alternatively if I go with 650b wheel size, it can probably take 45mm+ tires. Thank you for your tips on the BB. I am tempted to go the Shimano route just coz' I already got the outboard threaded BB and tons of shimano 24mm cranks lying around but then I will be forsaking the light as feather SRAM crank....:o https://live.staticflickr.com/65535/...dbd7443e_b.jpg https://live.staticflickr.com/65535/...4ca7e59c_b.jpg https://live.staticflickr.com/65535/...c009b463_b.jpg https://live.staticflickr.com/65535/...72fcb3e9_b.jpg |
On my Specialized bikes with this BB standard, I always just used stock Sram BB30 bottom brackets and never had a problem. Maybe replaced 1 that saw lots of use and dirt. Felt like I was ahead versus using any sort of fancy bearings. https://www.backcountry.com/sram-bb3...a123cf0b25126e
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