Flexible frame?

[MisterStan]

Size doesnt matter, its what you do with it that counts.

You keep telling yourself that...

 

[fossyant]

What do you mean it doesn't catch enough of your behind. We don't want to see that. LOL

 

[MontyVeda]

The rear camera needs adjusting, it captures too much of my groin and legs and not enough of my behind. It also hits my baubles when I turn right (thats why it wobbles about). ....

FTFY

 

[02GF74]

ignorance is bliss = you shouoldn't have filmed the rear end of the bike, now you are going to worry aoubt it.

 

[snailracer]

...
I am not the most powerful rider out there and was certainly not going for it, but I am just amazed at how much the frame flexes.

The frame is Alu with Carbon forks and seat tube so I cannot understand how it is so flexible.

Any advice as to whether this is something to worry about would be great. I have never seen or heard about anything like this before.

The flexing appears to be mostly the back wheel flexing from side-to-side and does not seem abnormal to me. It is easy enough to flex a bicycle wheel several mm sideways just by pushing it with your little finger, so obviously hard pedalling which rocks the bike from side-to-side will flex it more. If it bothers you, spin faster and keep your bottom on the saddle.

"Stiffness" in road bikes typically refers to the resistance to twist between head tube and bottom bracket only. The rear triangle is usually fairly flexible as there is no advantage making it stiff - even a flexy rear triangle is much stiffer laterally than the rear wheel, and practically rigid in the vertical plane.

 

[4F]

I take it you have not had a lot of sun in Wales ?, the only flex I can see are in those sparrow legs

 

[Matthew_T]

Why is everyone talking about my legs? I know they are not the biggest but I still have similar power to someone bigger than me. Just look at my Strava segments and you will see.

 

[4F]

 

[Peter Armstrong]

I can’t see it but yes, some frames are designed to flex, mine is. Not the bottom bracket, but the section between the saddle and the rear. This is usually allot thinner so when you hit a bump in the road you don’t shatter your arse hole.

 

[Rob3rt]

Why is everyone talking about my legs? I know they are not the biggest but I still have similar power to someone bigger than me. Just look at my Strava segments and you will see.

How will your Strava segments show your power is similar to others? Are you referring to the estimates?

 

[Matthew_T]

How will your Strava segments show your power is similar to others? Are you referring to the estimates?

I mean the placings. On most segments I am quite high. Higher than people with bigger legs than me.

People need to remember: I am about 8st 10lbs and dont have a drop of fat on me. Of course I am going to have skinny legs. With age (and consumption) they will probably get bigger.

 

[AndyRM]

Size doesnt matter, its what you do with it that counts.

Maybe so, but you wouldn't take a dinghy out to sea in a storm, would you?

 

[Matthew_T]

Maybe so, but you wouldn't take a dinghy out to sea in a storm, would you?

You would if you were an idiot.

 

[fossyant]

Strava power readings are a joke, just like calorie readings on Garmins.

 

[Matthew_T]

Strava power readings are a joke, just like calorie readings on Garmins.

Any kind of reading like that is inaccurate. Unless you have wires and probes inside you, the results will never be correct.