Sore butt muscles: Saddle up or down ?

JimmyK
JimmyK Posts: 712
After yesterdays arctic 45 miler , my butt and thigh muscles were really tired. I kept having to raise my rear end off the saddle to get some relief and I just hadnt nearly as much power in the thighs. Im wondering if I need to adjust my saddle ?

The 53/39 on my bike had a measurement of 172.5mm of some kind, whereas the new shimano compact 50/34 I had fitted had that measurement of 175mm and no saddle adjustment was carried out.

For my achey bum and thighs would you think it is an upward or downward adjustment of my saddle ?

Jimmy

Comments

  • Infamous
    Infamous Posts: 1,130
    Longer cranks = Lower saddle
  • hopper1
    hopper1 Posts: 4,389
    Infamous wrote:
    Longer cranks = Lower saddle

    +1

    Lower by 2.5mm :wink:
    Start with a budget, finish with a mortgage!
  • JimmyK
    JimmyK Posts: 712
    surely a 2.5mm difference isnt gonna result in sore behind and aching thighs :shock:
  • softlad
    softlad Posts: 3,513
    JimmyK wrote:
    surely a 2.5mm difference isnt gonna result in sore behind and aching thighs :shock:

    try dropping the saddle 2.5mm and find out....
  • JimmyK
    JimmyK Posts: 712
    ive been watching some online vids to do with correct saddle height. does the heel on the pedal with your leg at full stretch method do the trick, the knee would be at a slight angle if the ball of the foot was doing the pedalling a la cleated pedal.

    or is there a more efficient (and simple) method that you use ?

    Jimmy
  • softlad
    softlad Posts: 3,513
    the 'correct' saddle height is not really the point in this instance jimmy. If you have fitted longer cranks, you have effectively extended your saddle height - and therefore altered your riding position - by 2.5mm.

    It doesn't sound like much, but if you are used to a certain position, then any change will make a difference.

    As already said - try dropping the saddle 2.5mm and see if that helps.
  • hopper1
    hopper1 Posts: 4,389
    softlad wrote:
    the 'correct' saddle height is not really the point in this instance jimmy. If you have fitted longer cranks, you have effectively extended your saddle height - and therefore altered your riding position - by 2.5mm.

    It doesn't sound like much, but if you are used to a certain position, then any change will make a difference.

    As already said - try dropping the saddle 2.5mm and see if that helps.

    +1

    2.5mm will make a difference.
    I changed saddles a while back. New saddle had a lower profile than the previous one, I didn't adjust the seat post, just went and did a 100 mile sportive :shock:
    The next day, my glutes were in tatters, and I couldn't work out why I was so 'weak' on hills when I actually felt really good...

    2.5mm matters :wink:
    Start with a budget, finish with a mortgage!