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Why the steeper the better? I mean yeah, steep angles look cool, but Ed (above) is right when he warns that a steep seattube will have the same effect as a longer TT.
By the way, if anyone cares, this is my current T-Rex list:
Bill Whitcomb pursuit track (1985, Columbus SLX): ST 63.5 c-t, TT 58 c-c
Unknown British track (mid 80s, Reynolds 531): ST 62 c-t, TT 56.5 c-c
Preuss road (late 80s, Columbus MAX): ST 61.5 c-t, TT 57 c-c
Rob Telfer road (late 80s, Reynolds 531c): ST 58.5 c-t, TT 54 c-c
Argos road (late 80s, Reynolds 531c) ST 62 c-t, TT 52.5 c-c
jetski-
Long legs, short femurs. :)
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Why the steeper the better?
Bit late to this, but this is actually more to being able to set the saddle forward in a bigger frames.
Big frames tend to have a slacker than average seat tube, this is fine however it limited saddle position to the point that you may have to flip the layback seatpost the wrong way round to achieved the idea saddle - bottom bracket distance (horizontal).
Most especially when you want to ride on Selle SMP saddle where they recommend you to set it at least 10-15mm forward compare to your old saddle.
TurtleRecall
edscoble
Nice! If you spot any more big T-rex track frames, do let me know. The steeper the seat tube, the better!