Road Cycling · Public discussion

Shifting

Started by Mark · · Last activity · 11 posts · 490 views

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Road Cycling
Published
13 October 2006
Last activity
14 October 2006
Original author
Mark
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11
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  1. Oky folks, I need some help here. I have just "graduated" from a 1989 Trek
    1200 to a 2006 Trek 1200. The new bike has the shifters incorporated into
    the brake lever. How the heck do you shift these things? I was going to a
    parking lot to get familair with the bike and pushed the lever on the right
    hand side until it was on the smallest cog. But now when I push the lever
    it won't do anything. I do not know how to shift to the bigger cogs. This
    also has three chainrings in the front and I pushed the lever on the left
    hand side until it shifted to the smaller ring but now it wont move back. I
    just got this bike tuned up and I am sure the bike shop wouldnt have
    released it if it wasnt shifting right. Help!!

    Shiftless in Texas

  2. Quoted message said:

    Oky folks, I need some help here. I have just "graduated" from a 1989 Trek
    1200 to a 2006 Trek 1200. The new bike has the shifters incorporated into
    the brake lever. How the heck do you shift these things?

    You push inward on the small lever to shift to a smaller gear. Push inward
    on the larger lever (the brake lever) to shift to a larger gear.

  3. On Fri, 13 Oct 2006 21:27:56 GMT, "Mark" <[email hidden]>

    Quoted message said:

    Oky folks, I need some help here. I have just "graduated" from a 1989 Trek
    1200 to a 2006 Trek 1200. The new bike has the shifters incorporated into
    the brake lever. How the heck do you shift these things? I was going to a
    parking lot to get familair with the bike and pushed the lever on the right
    hand side until it was on the smallest cog. But now when I push the lever
    it won't do anything. I do not know how to shift to the bigger cogs. This
    also has three chainrings in the front and I pushed the lever on the left
    hand side until it shifted to the smaller ring but now it wont move back. I
    just got this bike tuned up and I am sure the bike shop wouldnt have
    released it if it wasnt shifting right. Help!!

    Shiftless in Texas

    0 1 2 3 4 5 6 7 8 9 10 +10dB
    ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
    TROLL-O-METER

  4. Mark said:

    But now when I push the lever
    it won't do anything. I do not know how to shift to the bigger cogs. This
    also has three chainrings in the front and I pushed the lever on the left
    hand side until it shifted to the smaller ring but now it wont move back. I
    just got this bike tuned up and I am sure the bike shop wouldnt have
    released it if it wasnt shifting right.

    go back to the bike shop and ask their "dummy specialist" to show
    you how to shift gears.

    sheesh.

  5. Mark said:

    Oky folks, I need some help here. I have just "graduated" from a 1989 Trek
    1200 to a 2006 Trek 1200. The new bike has the shifters incorporated into
    the brake lever. How the heck do you shift these things? I was going to a
    parking lot to get familair with the bike and pushed the lever on the right
    hand side until it was on the smallest cog. But now when I push the lever
    it won't do anything. I do not know how to shift to the bigger cogs. This
    also has three chainrings in the front and I pushed the lever on the left
    hand side until it shifted to the smaller ring but now it wont move back. I
    just got this bike tuned up and I am sure the bike shop wouldnt have
    released it if it wasnt shifting right. Help!!

    These will fix the problem:
    <http://bike.shimano.com/catalog/cycle/products/component.jsp?PRODUCT%3C%3Eprd_id=845524441763088&FOLDER%3C%3Efolder_id=2534374302040061&ASSORTMENT%3C%3East_id=1408474395181419&bmUID=1160798884603>.

    --
    Tom Sherman - Here, not there.

  6. Johnny Sunset aka Tom Sherman said:


    Mark said:

    Oky folks, I need some help here. I have just "graduated" from a 1989 Trek
    1200 to a 2006 Trek 1200. The new bike has the shifters incorporated into
    the brake lever. How the heck do you shift these things? I was going to a
    parking lot to get familair with the bike and pushed the lever on the right
    hand side until it was on the smallest cog. But now when I push the lever
    it won't do anything. I do not know how to shift to the bigger cogs. This
    also has three chainrings in the front and I pushed the lever on the left
    hand side until it shifted to the smaller ring but now it wont move back. I
    just got this bike tuned up and I am sure the bike shop wouldnt have
    released it if it wasnt shifting right. Help!!

    These will fix the problem:
    <http://bike.shimano.com/catalog/cycle/products/component.jsp?PRODUCT%3C%3Eprd_id=845524441763088&FOLDER%3C%3Efolder_id=2534374302040061&ASSORTMENT%3C%3East_id=1408474395181419&bmUID=1160798884603>.

    LOL!

  7. Johnny Sunset aka Tom Sherman said:
    Mark said:

    Oky folks, I need some help here. I have just "graduated" from a 1989 Trek
    1200 to a 2006 Trek 1200. The new bike has the shifters incorporated into
    the brake lever. How the heck do you shift these things? I was going to a
    parking lot to get familair with the bike and pushed the lever on the right
    hand side until it was on the smallest cog. But now when I push the lever
    it won't do anything. I do not know how to shift to the bigger cogs. This
    also has three chainrings in the front and I pushed the lever on the left
    hand side until it shifted to the smaller ring but now it wont move back. I
    just got this bike tuned up and I am sure the bike shop wouldnt have
    released it if it wasnt shifting right. Help!!

    These will fix the problem:
    <http://bike.shimano.com/catalog/cycle/products/component.jsp?PRODUCT%3C%3Eprd_id=845524441763088&FOLDER%3C%3Efolder_id=2534374302040061&ASSORTMENT%3C%3East_id=1408474395181419&bmUID=1160798884603>.

    --

    Mounting them on the downtube might be a bit of a challenge.

  8. Bluejay <[email hidden]> wrote in
    news:[email hidden]:

    Quoted message said:
    Quoted message said:

    Oky folks, I need some help here. I have just "graduated" from a 1989
    Trek 1200 to a 2006 Trek 1200. The new bike has the shifters
    incorporated into the brake lever. How the heck do you shift these
    things?

    You push inward on the small lever to shift to a smaller gear. Push
    inward on the larger lever (the brake lever) to shift to a larger
    gear.

    Physically speaking:

    The brake-lever-shift works the cable against the derallieur spring by
    winding the cable with a ratchet mechanism. The left brake lever moves
    the front derallieur to the right and the right brake lever moves the
    rear derallieur to the left. Shifts from inner to center ring requires a
    lot more and firmer movement than from any other ring because of the
    geometry of the chain and the derallieur cage.

    The small/release-lever releases the cable ratchet mechanism in the
    shifter mechanism one shift, so the left lever moves the front derallieur
    to the left and the right lever moves the rear derallieur to the right.

    You may experience a 'stutter' shift to-and-from the center front chain
    ring from the inner ring. It's used to slightly change the front cage
    position but doesn't actually force the chain to shift to another ring.
    It's there to enhance derallieur/chainline compliance from front to back
    cogs (keep the chain from rubbing on the front derallieur cage) caused by
    shifting the chain from the extreme inner cog/outer cog limits on the
    rear cluster. It can be felt as an 'almost' shift from inner to center
    or from center to inner chain rings, usually by not fully depressing
    either the brake lever shifter or the smaller release lever.

    Unfortunately, only practice will make this second-nature since the left
    and right shifters are alike in physical operation, but opposite in
    actual gear ration effect.

  9. Quoted message said:
    Johnny Sunset aka Tom Sherman said:
    Mark said:

    Oky folks, I need some help here. I have just "graduated" from a 1989 Trek
    1200 to a 2006 Trek 1200. The new bike has the shifters incorporated into
    the brake lever. How the heck do you shift these things? I was going to a
    parking lot to get familair with the bike and pushed the lever on the right
    hand side until it was on the smallest cog. But now when I push the lever
    it won't do anything. I do not know how to shift to the bigger cogs. This
    also has three chainrings in the front and I pushed the lever on the left
    hand side until it shifted to the smaller ring but now it wont move back. I
    just got this bike tuned up and I am sure the bike shop wouldnt have
    released it if it wasnt shifting right. Help!!

    These will fix the problem:
    <http://bike.shimano.com/catalog/cycle/products/component.jsp?PRODUCT%3C%3Eprd_id=845524441763088&FOLDER%3C%3Efolder_id=2534374302040061&ASSORTMENT%3C%3East_id=1408474395181419&bmUID=1160798884603>.

    --

    Mounting them on the downtube might be a bit of a challenge.

    Bar-end shifters would likely work [1].

    [1] Do the newer carbon fiber composite handlebars with ovoid
    cross-sections have a circular cross-section with standard I.D. so
    bar-end shifters [2] and normal end plugs will work?
    [2] The combination of carbon fiber composite handlebars and bar-end
    shifters does seem rather odd.

    --
    Tom Sherman - Here, not there.

  10. Johnny Sunset aka Tom Sherman said:
    Quoted message said:
    Johnny Sunset aka Tom Sherman said:

    Mark wrote:
    > Oky folks, I need some help here. I have just "graduated" from a 1989 Trek
    > 1200 to a 2006 Trek 1200. The new bike has the shifters incorporated into
    > the brake lever. How the heck do you shift these things? I was going to a
    > parking lot to get familair with the bike and pushed the lever on the right
    > hand side until it was on the smallest cog. But now when I push the lever
    > it won't do anything. I do not know how to shift to the bigger cogs. This
    > also has three chainrings in the front and I pushed the lever on the left
    > hand side until it shifted to the smaller ring but now it wont move back. I
    > just got this bike tuned up and I am sure the bike shop wouldnt have
    > released it if it wasnt shifting right. Help!!

    These will fix the problem:
    <http://bike.shimano.com/catalog/cycle/products/component.jsp?PRODUCT%3C%3Eprd_id=845524441763088&FOLDER%3C%3Efolder_id=2534374302040061&ASSORTMENT%3C%3East_id=1408474395181419&bmUID=1160798884603>.

    --

    Mounting them on the downtube might be a bit of a challenge.

    Bar-end shifters would likely work [1].

    As would Kelly Take-offs:

    http://www.kellybike.com/takeoffs.html

    Quoted message said:

    [1] Do the newer carbon fiber composite handlebars with ovoid
    cross-sections have a circular cross-section with standard I.D. so
    bar-end shifters [2] and normal end plugs will work?

    I've never thought to look.

    Quoted message said:

    [2] The combination of carbon fiber composite handlebars and bar-end
    shifters does seem rather odd.

    IMO, carbon fiber-reinforced-plastic handlebars seem rather odd.
    Along with CFRP stems, seatposts, seatstays, etc.

  11. Quoted message said:

    [1] Do the newer carbon fiber composite handlebars with ovoid
    cross-sections have a circular cross-section with standard I.D. so
    bar-end shifters [2] and normal end plugs will work?

    Probably.

    FWIW, carbon fiber aerobars are designed to work with bar-end shifters.

    Chris Neary
    [email hidden]

    "Science, freedom, beauty, adventure: what more could
    you ask of life? Bicycling combined all the elements I
    loved" - Adapted from a quotation by Charles Lindbergh

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