What current carbon bike has the stiffest BB?

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vastus

Post subject: What current carbon bike has the stiffest BB?

Posted: Sun Aug 19, 2012 7:09 am

Joined: Sun Aug 19, 2012 1:05 am
Posts: 6

Hi guys.

Any thougths on this would be appreciated

Vastas.

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Weenie

Post subject: What current carbon bike has the stiffest BB?

Posted: Sun Aug 19, 2012 7:09 am

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DMF

Post subject: Re: What current carbon bike has the stiffest BB?

Posted: Sun Aug 19, 2012 7:40 am

Joined: Sat Dec 06, 2008 10:14 am
Posts: 974
Location: Sweden

It's really not the BB that holds the stiffness, that's a bike magazine myth. it's the downtube, seattube and chainstays that flex and twist. These super oversize BB junctions on todays frames main function is to save weight. You hardly have any lever force on the BB shell.

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The Shivenge

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vastus

Post subject: Re: What current carbon bike has the stiffest BB?

Posted: Sun Aug 19, 2012 8:20 am

Joined: Sun Aug 19, 2012 1:05 am
Posts: 6

thanks DMF.

Good info.

What current carbon bike do you think is the stiffest in it's entirety today ?

Vastus

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DMF

Post subject: Re: What current carbon bike has the stiffest BB?

Posted: Sun Aug 19, 2012 8:29 am

Joined: Sat Dec 06, 2008 10:14 am
Posts: 974
Location: Sweden

What kind of peak wattage do you actually put out in a short sprint? And what is your weight?

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vastus

Post subject: Re: What current carbon bike has the stiffest BB?

Posted: Sun Aug 19, 2012 8:31 am

Joined: Sun Aug 19, 2012 1:05 am
Posts: 6

my weight is 88kg.

i do not measure power output when i am riding. sorry

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DMF

Post subject: Re: What current carbon bike has the stiffest BB?

Posted: Sun Aug 19, 2012 8:46 am

Joined: Sat Dec 06, 2008 10:14 am
Posts: 974
Location: Sweden

If the geometry fits you, and the price fits the bill, I'd reckon a Mario Cippolini bike could be among the stouter rides out there (if it's good enough for Super Mario, it's good enough for you). But there is more to a stiff ride than the frame tubes. You really need to look at wheels, cranks, shoes and bar/stem-combo too...

Otherwise look into getting a custom steel or aluminum frame (like Tsunami), that can be tuned to your stiffness requirements just by choice of material thickness.

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vastus

Post subject: Re: What current carbon bike has the stiffest BB?

Posted: Sun Aug 19, 2012 9:25 am

Joined: Sun Aug 19, 2012 1:05 am
Posts: 6

Thanks DMF.

What bike do you ride?

Vastas

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DMF

Post subject: Re: What current carbon bike has the stiffest BB?

Posted: Sun Aug 19, 2012 9:43 am

Joined: Sat Dec 06, 2008 10:14 am
Posts: 974
Location: Sweden

I ride a cheapish aluminum frame, built as a criterium racer, as my main roadbike. Nothing special, but I love the geo so I can't get myself to make the change for a 'better' frame

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Phill P

Post subject: Re: What current carbon bike has the stiffest BB?

Posted: Sun Aug 19, 2012 11:13 am

Joined: Sat Jun 02, 2007 1:10 am
Posts: 1845
Location: Melbourne, Australia

Velocity pride themselves of targeting stiffness before weight. That said their bikes aren't exactly heavy either.

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DartanianX

Post subject: Re: What current carbon bike has the stiffest BB?

Posted: Sun Aug 19, 2012 11:31 am

Joined: Sun Nov 13, 2011 6:00 am
Posts: 253

Stiffest bike in it's entirety would have to be the Ridley Noah.

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Ramjm_2000

Post subject: Re: What current carbon bike has the stiffest BB?

Posted: Sun Aug 19, 2012 1:23 pm

Joined: Thu Feb 02, 2006 10:26 pm
Posts: 540
Location: NoVA

I believe both Tour and Velo gave the Cannondale Evo their highest score ever for stiffness.

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HammerTime2

Post subject: Re: What current carbon bike has the stiffest BB?

Posted: Sun Aug 19, 2012 1:33 pm

Joined: Thu May 04, 2006 4:43 pm
Posts: 5107
Location: Wherever there's a mountain beckoning to be climbed

Ramjm_2000, are you confusing stiffness with stiffness to weight ratio?

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DMF

Post subject: Re: What current carbon bike has the stiffest BB?

Posted: Sun Aug 19, 2012 1:34 pm

Joined: Sat Dec 06, 2008 10:14 am
Posts: 974
Location: Sweden

Isn't that stiffness for it's weight... I have a very hard time thinking it would be stiffer than some of the sturdier frames that are twice the weight and twice the amount of the same material?

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JSS

Post subject: Re: What current carbon bike has the stiffest BB?

Posted: Sun Aug 19, 2012 1:48 pm

Joined: Tue Oct 25, 2011 3:03 pm
Posts: 38

I am 6' 3" 220lbs and I ride a look 695 sr, it is super rigid and super light my bike weighs 13.6lbs

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jsinclair

Post subject: Re: What current carbon bike has the stiffest BB?

Posted: Sun Aug 19, 2012 4:25 pm

Joined: Sat Aug 27, 2011 3:26 am
Posts: 392
Location: Sydney, Australia

My bike is the stiffest.

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Weenie

Post subject: Re: What current carbon bike has the stiffest BB?

Posted: Sun Aug 19, 2012 4:25 pm

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