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General Category >> Technical >> Ceramic Bearing Bottom Bracket
https://rbentonline.org/YaBB.pl?num=1473705444

Message started by jayg on Sep 12^th, 2016, 1:37pm

Title: Ceramic Bearing Bottom Bracket
Post by jayg on Sep 12^th, 2016, 1:37pm

Installed an Omni Racer hybrid ceramic-bearing bottom bracket on my 2016 Metabike Metaphysic. It replaces the steel-bearing Mega Exo BB that came with the bike's FSA Energy crankset. Bought it off Ebay for less than $100. Comes with installation instructions, adapters, and spacers. Fits SRAM, FSA and Truvative cranksets. Does it provide any advantage over the Mega Exo BB? Who knows. But, at least I will be able to respond to a query with: "Yes, as a matter of fact, my Meta does have a ceramic-bearing BB". :D

http://i1021.photobucket.com/albums/af339/jayg_2010/DSC00974_zpszl8nmj1m.jpg (http://s1021.photobucket.com/user/jayg_2010/media/DSC00974_zpszl8nmj1m.jpg.html)

Omni Racer ceramic-bearing bottom bracket kit.

http://i1021.photobucket.com/albums/af339/jayg_2010/DSC00978_zpsafb1yqsb.jpg (http://s1021.photobucket.com/user/jayg_2010/media/DSC00978_zpsafb1yqsb.jpg.html)

Installed bottom bracket.

Title: Re: Ceramic Bearing Bottom Bracket
Post by MrWizard on Sep 13^th, 2016, 9:03am

According to the website - "Speed increases approaching 4%, i.e., over 1 km a rider can gain 20-40m"

So I guess you teleport?

http://www.omniracer.com/product-page/732b5745-4d11-395b-2940-d1db245bf63b

Title: Re: Ceramic Bearing Bottom Bracket
Post by jayg on Sep 13^th, 2016, 5:04pm

MrWizard wrote:

I saw that, but I'm going to have to stick with "Who knows", because I don't have enough data to make before and after comparisons. My Garmin data does show my average speed for 50 mile WRL rides has increased a minimum of 2 mph, since my cardiologist adjusted my medications in July (Beta blocker: "Bad". Calcium blocker: "Good".).

Title: Re: Ceramic Bearing Bottom Bracket
Post by MrWizard on Sep 13^th, 2016, 7:46pm

I actually need to replace my BB in the carbon trike as I stole it off another bike when the one they sent didn't work. Its a basic ultegra BB from a few years ago. I think I'm going to try one of these out too as they are nicely priced. Since I've got PT1s on the cranks I should be able to see if there a watts in vs speed out change or not ..

jayg wrote:

[quote author=MrWizard link=1473705444/0#1 date=1473775387]According to the website - "Speed increases approaching 4%, i.e., over 1 km a rider can gain 20-40m"

So I guess you teleport?

http://www.omniracer.com/product-page/732b5745-4d11-395b-2940-d1db245bf63b