Kayrehn wrote:AJS914 wrote:The whole thing about people being delighted by a fast spinning crank is snake oil. It doesn't translate to gains at 75-120rpms. Even that UK vendor's chart posted above said the benefit was .2 watts. First, being a vendor claim makes it suspect and second, .2 watts is nothing, and third, if you want to pay $350 for a bottom bracket then you drank the coolaid.
I packed my Super Record Cult bearings with grease because there's no reason not to, they will be better protected, and I didn't want to have to oil my bottom bracket every three months.
^ I do read numerous articles saying free-spinning cranks are no indicator of reduced watts but just thought it's a given for ceramic BBs. I didn't get it for the watt savings actually (actually it's for weight savings ha) so that doesn't matter. Didn't install it myself anyway.
My Canyon Ultimate CF SLX is equipped with a Shimano BB92-41B Pressfitt 86,5 Road bottom bracket. The plastic cups of this press fit bottom bracket started to release from the frame, providing 1 or 2 mm. between the cup edge and the frame. James Huang BikeRadar article “I’ve had it with press-fit bottom brackets” in which he covers tolerances, used materials and silencing creaky noises, came with two applicable take-aways:
1. Ditch the plastic cups;
2. Minimize the adapters;
I went for C-Bear because of the aluminium cups, the value for money, customer-driven company with good vision. C-Bear has a long term sponsorship with Lotto Soudal, Wanty Group Gobert so if a C-Bear can withstand the punishment of Andre Greipel, than it's certainly good enough for me.
http://www.remo-knops.com/5417/c-bear-b ... bb86-bb92/