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  1. #1
    Brian L. Baker Hardheadmandca's Avatar
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    Feb 2007
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    Fresno, CA
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    Specialized Sirrus - 2000?
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    Tightness in my left thigh and left lower back

    The last three days I have experienced tightness in my left thigh and left lower back about 6 miles into my daily lunch time 17+ mile ride. The leg tightness seems to go away after a few miles, but the back stays tight until I stop riding. It doesn't bother me later in the afternoon after my ride.

    Nothing seems to have changed recently, though I did start riding this bike only 3 weeks ago. I rode a different one for the last 6 months. I believe the crank lengths are the same. and the pedals are, theoretically identical - Shimano 105's, though I am wearing different shoes with this bike.
    Brian

    Cervelo Dual/Calfee Tetra Pro/Kestrel 200sc/Specialized Sirrus/Diamondback Ascent/Centurion Fixie

  2. #2
    Senior Member
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    Oct 2003
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    I would guess that it's a fit difference - you may be more stretched out in the new bike.

    But the real answer is that you need to work on flexibility and core strength. There are lots of good ones out there - I've had good luck with cyclo-zen
    Eric

    2005 Trek 5.2 Madone, Red with Yellow Flames (Beauty)
    199x Lemond Tourmalet, Yellow with fenders (Beast)

    Read my cycling blog at http://riderx.info/blogs/riderx
    Like climbing? Goto http://www.bicycleclimbs.com

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