Front hub position
Comments
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Surely this depends on what position you are in on the bike - if your down on the drops, your head will be a bit further forward than if you are sat up on the tops?0
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The further out the handbars go from the headset the crazier the steering becomes. If
they go past a vertical line extending up from the front axle you could have real
control problems. I, for one, don't believe that having the bars block the view of the front axle
while in the drops accomplishes anything meaningful. Then again what do I know?
It's just a way to do things that has no science or testing behind it. Most bike fit ideas
are pretty much the same thing.
Dennis Noward0 -
Indeed it does - I should read the thread a bit more carefully then! I shall nip out to the garage tonight to see where I sit on my many steeds. :oops:
Being pedantic though, you can sit upright on the hoods or "I'm breathing outta my arse trying to hang onto this rear wheel" sort of position on the hoods. I presume we are talking about the former.0 -
On my race bike, in a relaxed position on the hoods, the front axle is behind the bars. But if I actually ride it in anger (still on the hoods) the hub is obscured by the bars. :?0
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This idea that whether or not you can see the front hub is an indication of correct sizing is a comapartively new one.
To me it makes no sense at all because it makes no allowance for frame geometry and fork rake etc. If you sit in the same position on a frame with a 72 head and 2 inches of rake will the hub appear to be in the same position as on a frame with 75 degrees and 1 inch? I think not. As Bronzie says, you would have to define an exact body posture as well. Hence this is not an indication of correct sizing.
Along with "turning the pedal with your heel" to get a rough saddle height, the old one for setting the reach to the bars was to put your elbow at the peak of the saddle when your figer tips would be about an inch from the handlebars. Note that both of these old fashioned ways of sizing are independent of frame geometry.0 -
tatanab wrote:This idea that whether or not you can see the front hub is an indication of correct sizing is a comapartively new one.
To me it makes no sense at all because it makes no allowance for frame geometry and fork rake etc. If you sit in the same position on a frame with a 72 head and 2 inches of rake will the hub appear to be in the same position as on a frame with 75 degrees and 1 inch? I think not. As Bronzie says, you would have to define an exact body posture as well. Hence this is not an indication of correct sizing.
Along with "turning the pedal with your heel" to get a rough saddle height, the old one for setting the reach to the bars was to put your elbow at the peak of the saddle when your figer tips would be about an inch from the handlebars. Note that both of these old fashioned ways of sizing are independent of frame geometry.
It isn't actually, Richard Ballantine discusses it in detail in a 1988 edition of The New Bicycle Book.
Not saying that he is right mind.0
