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PostPosted: Sun Jun 22, 2014 9:48 pm 
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Joined: Thu Jun 05, 2014 6:41 am
Posts: 62
So my dad wants a new frame and I want to buy it for him, he likes the helium a lot but I was wondering if there is a big noticeable difference in stiffness and feel between the regular helium(900g) and the helium sl(700g) he is about 160 lbs and does really good on steep hills so I thought this frame will be good for him, people with experience on this frames please post.


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PostPosted: Mon Jun 23, 2014 12:13 am 
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Joined: Tue Dec 27, 2011 2:19 pm
Posts: 659
I have no firsthand knowledge, but the sl might even be stiffer I know my cervelo R5 is stiffer than my buddies R3sl that is a 70-100 grams heavier in the frame...

To lose the weight a higher modulus carbon is used, meaning a stiffer frame, and usually a harsher ride as well...


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PostPosted: Mon Jun 23, 2014 12:57 am 
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Posts: 62
I thought with higher mod carbon it was stiffer by square inch, thats why they use less material to achieve same or better results, stiffness or compliance, I could be wrong.


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PostPosted: Tue Jun 24, 2014 3:53 pm 
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Posts: 62
Anyone??????????


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PostPosted: Tue Jun 24, 2014 4:41 pm 
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Joined: Sat May 03, 2014 2:54 pm
Posts: 10
This doesn't answer your question directly but Velo News April 2014 issue did a nice review, including stiffness testing, of Helium SL vs Bianchi Oltre, Scott Addict and Giant TCR SL.

Helium was most comfortable and had second stiffest BB, but the most deflection at the seatpost (probably why it was most comfortable). Might be worth buying that issue online.


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PostPosted: Tue Jun 24, 2014 5:22 pm 
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Posts: 8181
Location: Geelong
RIDE Magazine also reviewed the Helium SL in #63

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http://www.nicksquillari.com.au


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PostPosted: Tue Jun 24, 2014 9:33 pm 
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Joined: Wed Apr 11, 2012 3:40 am
Posts: 644
Your 160lb dad probably won't have stiffness complaints with a modern carbon frame.


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PostPosted: Wed Jun 25, 2014 4:21 am 
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Joined: Thu Jun 05, 2014 6:41 am
Posts: 62
hahaha, on todays bike ride one of the guys showed up on a ridley helium isp, is last years model, I got to talk to him a bit about it, it looks like a solid bike, he is about my size so I took it for a spin, and it reminds me of a cannondale evo, I like it.


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PostPosted: Wed Jun 25, 2014 5:35 am 
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Joined: Sat Dec 13, 2003 2:25 am
Posts: 4716
Location: Canada
Well, I'm on Fredrik Willems' Ridley Helium from last season. Notwithstanding that Pro Team framesets may be comprised of carbon layup schedules that are different from production frames, I thought I would give you some feedback.

I find the Helium to be very stiff and solid. The bottom bracket area and the headtube area are particularly massive. The resulting frame is very stiff throughout. I am 129-134 lbs (and 1,100 watts in the sprint) so not as heavy as your dad, but I believe that you would find it more than stiff enough. All in all, a very nice example of a Pro Tour-level frameset.


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PostPosted: Wed Jun 25, 2014 6:27 am 
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Joined: Thu Jun 05, 2014 6:41 am
Posts: 62
Cool, now is that for the helium or the helium sl>?


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