Sysagent
"The Most Annoying Man In The World."
- Location
- Great Harwood, Lancashire
Just had the delivery of my new Ribble road bike (previously been an ardent MTB'er for years n years) and I am now in the process of "fine tuning" the fit of it to me...
The frame is a 46cm sloping top tube, geometry here:-
http://www.ribblecycles.co.uk/content/images/FrameGeometrySloping.gif
and measurement chart to piccy here:-
http://www.ribblecycles.co.uk/content/images/FrameGeometrySlopingChart.gif
I have measured my inseam length to be 79.5cm using the hard-book method with my feet 6" apart in my cycling shorts.
Ok here is the dilemma when using the calculation:-
saddle height=0.883 x inseam I get the value 70.19cm
Doing a quick measurement now of my saddle height it is 75cm, this height was determined using the heel on pedal method, but the height just doesn't feel quite right, it is too low if anything...
Is it me? Am I an odd shape with legs longer than a giraffe, which is hardly probable being only 5ft 9" or am I completely missing the point here?
Oh also just for information the stem I have on the bike is 110mm in length with 46cm drop bars if that helps and 170mm crank arms, using Shimano 540 SPD's.
Many thanks in advance for any help or replies,
Russ
The frame is a 46cm sloping top tube, geometry here:-
http://www.ribblecycles.co.uk/content/images/FrameGeometrySloping.gif
and measurement chart to piccy here:-
http://www.ribblecycles.co.uk/content/images/FrameGeometrySlopingChart.gif
I have measured my inseam length to be 79.5cm using the hard-book method with my feet 6" apart in my cycling shorts.
Ok here is the dilemma when using the calculation:-
saddle height=0.883 x inseam I get the value 70.19cm
Doing a quick measurement now of my saddle height it is 75cm, this height was determined using the heel on pedal method, but the height just doesn't feel quite right, it is too low if anything...
Is it me? Am I an odd shape with legs longer than a giraffe, which is hardly probable being only 5ft 9" or am I completely missing the point here?
Oh also just for information the stem I have on the bike is 110mm in length with 46cm drop bars if that helps and 170mm crank arms, using Shimano 540 SPD's.
Many thanks in advance for any help or replies,
Russ