Can you install a bbright crank into a frame with bb386?
Bbright to bb386 paging jonkranked
- Thread starter Sandwich
- Start date
can you give me some specifics about the setup you're looking to run? or at least the frame / crank combo?
had to google, i don't follow this road stuff, so bbright is a 30mm spindle for a shell thats 11mm wider than standard? 79mm instead of 68?
ALL THE KILL LISTS
My SRAM Red crank is the BB386 version I think and my Cervelo is BBRight bottom bracket.
I think BB386 cranks have a slightly longer spindle than older BB30 standard, for my bike based on the SRAM instructions I had to use a spindle spacer on the drive-side.
As you're trying to do the opposite, what parts are you trying to use? I'm not sure how a BBright crankset compares to a BB30 or BB386 version.
edit2:
The complete guide to bottom bracket standards
Want to know your BSA from your BB90?
www.bikeradar.com
edit:
http://www.bbright.net/faq.aspx
| Q. | What is the difference between BBright™ and BB30™? |
| A. | For the crank, BBright™ uses the same diameter axle as BB30™, with the addition of 11mm length on the left side of the spindle, and the left crank is straighter, (similar to existing arms for external bearing cranks). For the frame, the bottom bracket shell is 11mm wider on the left side. BBright™ leaves the pedal stance width unchanged, but provides the frame designer with 11mm more room to increase frame tube widths and thus structural efficiency. BBright™ does not increase width on the right side because that space is used for the chain rings; extending the bottom bracket shell on the right provides no structural benefit to either frame or crank. |
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So the frame is a 3T Strada, which is BB386EVO
The cranks I am looking at are FSA SLK BBright: https://www.ebay.com/itm/FSA-K-Force-Light-Carbon-130-BCD-crankset-53-39T-172-5mm-crank-arms-BBRight-NEW/184041324362?hash=item2ad9b7bf4a:g:W7MAAOSwnd5cuKwc
At least one ad mentions that it's compatible with BB386evo, though that's an ad and they just want their dead stock cranks gone.
Based on what I can find, indeed this is BB30+11mm, narrower than true BB386, but there isn't clarity on the length of the spindle for BB386. I am under the impression that shimano cranks will fit BB386 with adapters, as the standard was designed around a standard external-BB-on-BSA width, just with press-in bearings. FSA even says that BB30 cranks may fit, but that they cannot guarantee, so that just makes matter more confusing.
I suppose I should just consider re-using my shimano cranks on this bike, or getting some cheap ROTORs, but apparently the SLKs are decent cranks, and I think I'm enjoying the puzzle more than the reality of trying to get it to work.
The cranks I am looking at are FSA SLK BBright: https://www.ebay.com/itm/FSA-K-Force-Light-Carbon-130-BCD-crankset-53-39T-172-5mm-crank-arms-BBRight-NEW/184041324362?hash=item2ad9b7bf4a:g:W7MAAOSwnd5cuKwc
At least one ad mentions that it's compatible with BB386evo, though that's an ad and they just want their dead stock cranks gone.
Based on what I can find, indeed this is BB30+11mm, narrower than true BB386, but there isn't clarity on the length of the spindle for BB386. I am under the impression that shimano cranks will fit BB386 with adapters, as the standard was designed around a standard external-BB-on-BSA width, just with press-in bearings. FSA even says that BB30 cranks may fit, but that they cannot guarantee, so that just makes matter more confusing.
I suppose I should just consider re-using my shimano cranks on this bike, or getting some cheap ROTORs, but apparently the SLKs are decent cranks, and I think I'm enjoying the puzzle more than the reality of trying to get it to work.
are you just looking at that particular item as its a good deal? as those cranks *are* available in the appropriate spindle length for the frame/bb combo you have.
yup! If I can save $50 by adding two spacers, then why not. Sounding like this is not the way to go though, I've seen a few things now suggesting they aren't compatible. I just love bottom bracket standards so much...
yea, it's super frustrating for sure. just use your shimano cranks for now and keep an eye out for something good to upgrade.
I've always wanted ROTOR cranks for reasons I can't explain...massive, forged 7 series hollow aluminum does the trick, I guess. I saw a few pairs, but I've got shitty FSAs lying around as spares....I feel like I should just spend the money to make the fancy bike fancy.
i saw recently that rotor has some fancy cranks that have built in power meters
Make the fancy bike fancy.
thanks, evil internet devil on my shoulder.
eewings are bb386 compatible.
set yourself on fire, foul bot
Hey @Sandwich are you still looking for a larger single ring SRAM direct mount for this build?
Saw these linked elsewhere:
www.aliexpress.com
Saw these linked elsewhere:
60.61US $ 26% OFF|Stone Chainring For Gravel Rival 11 22 Force 11 22 Direct Mount Dm Chainring Chainwheel Tooth Plate For Sram For Road Bike - Bicycle Crank & Chainwheel - AliExpress
Smarter Shopping, Better Living! Aliexpress.com
www.aliexpress.com
I don't know about that, I would prefer cat videos over BB standards.
After the climate wars have begun the only BB standard will be greased rags packed around whatever you can find. And the grease will likely be whatever human renderings you found that have become too foul to consume or use as personal lubricant.