If not, get some of those. Again, Sram includes them with their BBs and most shops should have them. After that you will need to adjust the preload washer, but that should do it.
Excuse my shallow knowledge of the English language, but what is a preload washer ? Google didn't help..
I think I might need the OSBB 62-86 C-Bear -as found on this overview http://www.c-bear.com/image/bbchart-print.pdf - instead of the C-Bear BB30-46 that's mounted right now. I'd still be interested to see what others are using though.
wheels mfg makes spacers that go between the cup and frame to space the bearings out to the proper width. this would be a reasonable option. Another route, my preference, would be to ditch the C-Bear bb and get some ROAD OSBB cups from a specialized dealer. If you want, you could pull the ceramic bearings out of the C-Bear cups and put them in the OSBB cups.
you could conceivably also add 3.5mm of spacers to the spindle on both sides of your current arrangement, but I wouldn't, as the bearings will be resting on an interior portion of spindle, not as intended and not designed to support the load.
thisisatest wrote:Yes in that system, bearing shields should be installed on both sides.
I apologize for not making that clear.
No problem! I appreciated your help. Does anyone know where to buy such bearing shields online ? A quick google search didn't provide much help
I have a 2011 tarmac sl3 pro now, with the stock specialized cranks, which the speci website specs as the OSBB frame and crank, http://www.specialized.com/us/en/bikes/archive/2011/tarmac/tarmacsl3prom2red#specs.
I understand that this is not the same as the carbon osbb that is used in the s-works models. Where I am now confused is some of the threads state the sl3/sl4 pro frames use standard bb30, like this http://weightweenies.starbike.com/forum/viewtopic.php?f=3&t=103618&start=15 which is not osbb?
At the end of the day, I'm looking to order a power2max unit - I think the rotor 3d+ is the correct option, but am unsure and want to try and keep the installation as clean and simple as possible and avoid using cups and spacers and conversions if I can.
I apologize in advance if I am thread jacking, but I know there are a lot of threads on this topic and did not want to start another.
This http://service.specialized.com/collateral/ownersguide/new/assets/pdf/Bottom-Bracket---Oversized-Road-Bottom-Bracket.pdf document from Specialized indicates that the 2011 tarmac sl3 pro has a 46mm carbon osbb shell
Whereas http://service.specialized.com/collateral/ownersguide/new/assets/pdf/Bottom-Bracket---Oversized-Road-Bottom-Bracket.pdf indicates the 2011 tarmac pro has a 68x42 osbb.
Does anyone know which one is in fact correct, and what that means as for as if it is bb30, pf30, or a modified version of either, and what I will need to use one of the rotor power2max models on this frame?
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