seat tube angle and/or moving seat back?

[eddief]

Let's say I am measuring the distance of the rear of my saddle behind the center of the bottom bracket. Does it make any difference in the "feelable" geometry if I get the saddle to a particular distance behind the bb via moving the saddle back on the seatpost or if I get it back there via a lesser seat tube angle? My brain can't get the geometry/physics on this one.

[e-RICHIE]

Let's say I am measuring the distance of the rear of my saddle behind the center of the bottom bracket. Does it make any difference in the "feelable" geometry if I get the saddle to a particular distance behind the bb via moving the saddle back on the seatpost or if I get it back there via a lesser seat tube angle? My brain can't get the geometry/physics on this one.


there are differences.
you can move the saddle to achieve the position
change that came with the frame with the angle
that doesn't suit you, but you cannot change where
the wheels are. it all should work completely and
in harmony; the position should be optimum, and
the working specs that determine "handling" should
be too. if you take a pre-existing design that is wrong
and you tweak it by sliding saddles fore-aft and rebuilding
cockpits with odd size stems, it is a crapshoot as to
what may result.
e-RICHIE©™®

[eddief]

I feel like the Aflac duck after it ran into Yogi Berra.

[vaxn8r]

Define "odd". :)

[e-RICHIE]

Define "odd". :)


you bought a 60cm frame.
the only way to get a correct fit is
to buy a 10cm stem. i would call
that "odd".

[Louis]

the only way to get a correct fit is to buy a 10cm stem. i would call that "odd".

OK, I'll bite:

At the risk of dredging up something that has been discussed ad nauseam:

1) What's so odd about a 10-cm stem?

2) If that is not correct, what is the “recommended” length range that indicates a properly sized frame for a given individual?

Louis

[e-RICHIE]

OK, I'll bite:

At the risk of dredging up something that has been discussed ad nauseam:

1) What's so odd about a 10-cm stem?

2) If that is not correct, what is the “recommended” length range that indicates a properly sized frame for a given individual?

Louis



i'll keep this brief; i think that size stem is odd with that size frame.

[William]

Hmmm,

Does a 130 stem + 62 cm TT + a slight set back post with the saddle jamed all the way back = odd?


William :confused:

[e-RICHIE]

Hmmm,

Does a 130 stem + 62 cm TT + a slight set back post with the saddle jamed all the way back = odd?


William :confused:


not to me.

[William]

not to me.

I've been thinking I should pick up one of those Thompson posts with more set back to get the post clamp closer to the center of the saddle rails?

William