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Saddle Height(6 posts)

Saddle HeightDrSchu
Apr 4, 2002 12:14 PM
I started riding last year on a univega 10speed. Fell in love with the sport, so I just bought a Colnago master X with the new Campy record 3 x 10. Problem is that I think I've been riding with saddle too high...according to my inseam measurement of 32 inches, my bike builder states the saddle height should be 72 cm from the center of the bottom bracket to the top of the saddle... I've been riding at 76!! I always thought you were supposed to get as much extention as possible, and my bike man tells me that is incorrect.
First, am I incorrect in trying to get as much extention as possible, thus losing some mechanical advantage, and if so, how do I get back down to 72 cm without injury?
re: Saddle HeightDave Hickey
Apr 4, 2002 12:23 PM
My inseam is 30.5" and I ride at 69.5cm bb to top of saddle. If I raise the saddle anymore, my knees hurt.
leg extension....floatch
Apr 4, 2002 12:28 PM
First of all, sounds like a cool bike.
Second, rather than measuring and using a mathematical equation, I've found the best method for determining seat height is to sit comfortably on the seat, ride for about ten minutes lightly on a trainer, perhaps, and then make sure you have a slight bend in your knee when your pedals are at 6 and 12 o'clock.
Getting "as much leg extension as possible" might actually rob you of some power, and hurt you in the process!
A good way to make sure you've set your height correctly is to have full leg extension when your heels are on the pedals. Watch out for the danger signs... knee or hip pain, rocking hips when pedaling, and knees hitting you in the chest while riding! ;) Good fit and sizing information can be found all over the 'net, or at colorado cyclist's page.
Fore and aft seat adjustment is a "whole 'nother ball game!"
leg extension....DrSchu
Apr 4, 2002 12:33 PM
Thanks...I'll give it a try
Lower that saddle...guido
Apr 4, 2002 9:44 PM
I'm 32" inseam and have been running 72 cm. saddle height for many years.

If your saddle is too high, lowering it won't do any damage to your knees. In fact, it'll probably feel good. Having it too high stretches the hamstrings, stresses the knees, and crushes perineal arteries!

You should be able to spin the crank around really fast without bouncing on the saddle. You can't do that with the saddle too high. To establish good form, to learn how to pedal, it's better to err on the low side. As your muscles learn how to pedal, gradually raise the saddle as high as possible where you can still pedal fast, 90-120 rpm, with the hips and upper body absolutely still, which for a 32" inseam is 72cm.
Lower that saddle...DrSchu
Apr 9, 2002 9:13 AM
Thanks for the tip...that is what the guys at wrench science have been saying, but my local bike shop guys are saying otherwise. After spending lots of cash on this bike I want to make sure I get the right fit. What do you recommend for and aft measurements. I can't seem to get my saddle back far enough to get the pedal spindle in line with the front of my knee, but it feels ok?