Bottom Bracket
#1
Thread Starter
Senior Member
Joined: Aug 2010
Posts: 94
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Bottom Bracket
Happy New Year fellow riders 
Last month I got a great deal on a Blue RC8 road bike (It came with a mix of FSA and 105 parts) and my plan is to build it up piece by piece. I did some searching online and can't find out if my bike has a BB30 bottom bracket or something else. This is what it says on the website:
•Aerus Conquest T700 high modulus carbon Mono Box bottom bracket shell
Trying to figure out if I can buy any 170mm crank with BB30 or if it has to be something special. The hubby and I are trying to work on our own bikes and learning how to piece things together etc... so far I can install a headset, change my own tire and wrap my bars
slow process but getting there. Any help would be appreciated. Cheers

Last month I got a great deal on a Blue RC8 road bike (It came with a mix of FSA and 105 parts) and my plan is to build it up piece by piece. I did some searching online and can't find out if my bike has a BB30 bottom bracket or something else. This is what it says on the website:
•Aerus Conquest T700 high modulus carbon Mono Box bottom bracket shell
Trying to figure out if I can buy any 170mm crank with BB30 or if it has to be something special. The hubby and I are trying to work on our own bikes and learning how to piece things together etc... so far I can install a headset, change my own tire and wrap my bars
slow process but getting there. Any help would be appreciated. Cheers
#3
#6
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Joined: Jul 2004
Posts: 21,985
Likes: 1,159
From: Ffld Cnty Connecticut
Bikes: Old Steelies I made, Old Cannondales
90% of the cranks are English threaded.
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Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.
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Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.
FYI: https://www.bikeforums.net/forum-sugg...ad-please.html
#7
I think, but I'm not sure (I could probably google this, but eh, what fun would that be?) that english threaded BB's are marked with the "1.37 x 24 TPI" while Italian BBs aren't. Not totally sure, but I think this is accurate.






