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  1. #1
    Jolt is offline Dodging the potholes...
    Join Date
    May 2007
    Location
    Southern Maine
    Posts
    1,668
    Quote Originally Posted by mimitabby View Post
    if you let your tires get soft, the "Give" will pinch your tubes and flatten your tires. Put enough air in your tires to meet the minimum pressure recommended if you are a lightweight; more if you are heavier than average.

    You will move a lot faster on properly inflated tires!

    ps 12mph is NOT slow
    Sounds like I'd better add some air then--I don't need a flat!
    2011 Surly LHT
    1995 Trek 830

  2. #2
    Join Date
    Nov 2006
    Location
    St. Paul, MN
    Posts
    979
    Oh yes I agree with the air thing, low psi makes me feel extra sluggish. However, I ride a trek 520, a nice little touring bike. Is there that much of a difference between a "road bike" and my "touring bike"?

  3. #3
    Join Date
    Jun 2005
    Location
    Illinois
    Posts
    3,151
    Please please *don't* be discouraged by your relative speed at this stage. If you try a group ride and can't keep up, get out there and work on your technique and distance and strength. You've only justbegun!!!

  4. #4
    Join Date
    Nov 2006
    Location
    St. Paul, MN
    Posts
    979
    Quote Originally Posted by Geonz View Post
    Please please *don't* be discouraged by your relative speed at this stage. If you try a group ride and can't keep up, get out there and work on your technique and distance and strength. You've only justbegun!!!
    Do you have any specific hints? i would love to hear them

  5. #5
    Join Date
    Jul 2006
    Location
    Riding my Luna & Rivendell in the Hudson Valley, NY
    Posts
    8,411
    For what it's worth, I don't agree with the rock-hard tires thing=faster speed.
    Yes, seriously underinflated tires are not good. But there is a happy medium.
    Super inflated tires will have less contact with the road and will bounce more on the upper surface of uneven pavement irregularities. The millions of tiny vertical bounces will add up to wasted forward motion. Medium inflated tires will make better road contact and thus transit forward motion energy better.
    My tires say maximum inflation recommended is 105 lb/sq.inch....that's "maximum". I keep them at 95 on the rear wheel and 85 on the front. That is nowhere NEAR low enough to get a pinch flat, mind you. With these pressures, I have stable steering and a smooth quick ride, and I'm not bouncing off every pebble like a kangaroo or feeling every nasty bump right on my "keester".
    Lisa
    My mountain dulcimer network...FOTMD.com...and my mountain dulcimer blog
    My personal blog:My blog
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  6. #6
    Join Date
    Apr 2006
    Location
    Seattle
    Posts
    8,548
    Lisa, me neither. i use 90 lbs for my tires too.
    but if they are "GIVING" they are too soft!
    Mimi Team TE BIANCHISTA
    for six tanks of gas you could have bought a bike.

  7. #7
    Join Date
    Sep 2006
    Location
    Top of Parrett Mountain, Oregon
    Posts
    453
    Quote Originally Posted by Lisa S.H. View Post
    For what it's worth, I don't agree with the rock-hard tires thing=faster speed.
    Yes, seriously underinflated tires are not good. But there is a happy medium.
    Super inflated tires will have less contact with the road and will bounce more on the upper surface of uneven pavement irregularities. The millions of tiny vertical bounces will add up to wasted forward motion. Medium inflated tires will make better road contact and thus transit forward motion energy better.
    My tires say maximum inflation recommended is 105 lb/sq.inch....that's "maximum". I keep them at 95 on the rear wheel and 85 on the front. That is nowhere NEAR low enough to get a pinch flat, mind you. With these pressures, I have stable steering and a smooth quick ride, and I'm not bouncing off every pebble like a kangaroo or feeling every nasty bump right on my "keester".
    Lisa, I keep my tires inflated to 130; the maximum is 145. I don't bounce on anything except large bumps; my daily rides are smooth and fun. I don't have road shock. My cruising speed is between 16 and 19 and I can increase my speed if I desire. I prefer more air pressure because it gives me a better ride. If I kept my tire pressure as low as 95 I would be slooooooooooooow.

    Darcy

 

 

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