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Following on from BB30 cranks a few posts back
SRAM Dub 28.99mm cranks?
Worthwhile compromise of a large diameter axle, Vs decent bearing size and sealing. Or Emperors new clothes again and another pointless "standard"?
user69121-
Worthwhile compromise of a large diameter axle, Vs decent bearing size and sealing. Or Emperors new clothes again and another pointless "standard"?
The easiest way to think about it is that they CBA to make 24mm and 30mm axles and a 29mm axle lets them get equivalent performance in sensible BB specs like BSA and BB/PF30/386Evo and acceptable durability in dumb shit like BB90/86.
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another pointless "standard"?
This
Howard
gbj_tester
The "BB30" cranks which are really 386Evo are fine, they use normal BB30 bearings in cups which screw into a BSC shell just like GXP or HT2 but a bit bigger. True BB30 cranks in a BSC shell should be avoided like the plague.
AFAIK, SRAM "BB30" cranks except Red Exogram are really 386Evo and use spacers to take up the slack when installed in BB30 or BBRight shells.