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  1. #1
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    How to use Shimano EZ Fire 21-speed shifters?

    Could someone point me to a website that tells how to shift using Shimano EZ Fire 21-speed shifters. I tested a bike with Grip shifters which I liked because it was simple but the bike I'm interested in has the EZ Fire shifters.

    P.S. When I google Shimano EZ Fire 21-speed shifters what mostly comes up is where you can buy the shifter, I didn't see anything about instructions on using the shifter.

  2. #2
    Cycle Dallas MMACH 5's Avatar
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    There is a lever on the top and one underneath. The top one pulls toward you, like a trigger to shift and the bottom one pushes away from you to shift.

    If you're sitting still, they won't work; the derailers will move but they won't shift. Shift while riding down the street.
    That's gonna leave a mark.

  3. #3
    Blocking your fire exits coffeecake's Avatar
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    The right hand one the thumb shifter shifts you DOWN (to larger ring = lower gear). Index trigger shifts you up (smaller ring = higher gear). The left hand one shifts your front derailleur and is set up opposite. Thumb shifter shifts up to big ring, index finger shifter shifts down to small ring.

    Oh, and just pedal lightly when you're shifting. One or two quick revolutions should do it. Don't shift under full bore. Your drivetrain will thank you. My SO is yelling "And don't forget to shift DOWN before you stop!!!"
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  4. #4
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    Quote Originally Posted by MMACH 5 View Post
    The top one pulls toward you, like a trigger to shift and the bottom one pushes away from you to shift.
    So the top and bottom levers regulate various gears example: top lever shifts gears 1-5 while bottom lever shifts gears 6-10. And right hand shifting operates the front cogs (big ones ) while the left hand shift operates the rear cogs (small ones)?

    Please disregard this reply as I did not notice the previouse post by "coffeecake" until after I posted this.

  5. #5
    Blocking your fire exits coffeecake's Avatar
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    Yes, right hand is for rear cogs, left hand is for front cogs. Generally you shift the rear more often than the front, and most people are right-handed, so that's why it's set up that way.
    Most people are other people. Their thoughts are someone else's opinions, their lives a mimicry, their passions a quotation.
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  6. #6
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    I had the opportunity to test a 7 speed grip shifter which was a no brainer so I really liked that. Plus it had gears 1 thru 7 listed right on the grip.

    Would a 21 speed grip shifter also have ALL the gears listed on the BOTH grip shifts?

  7. #7
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    Usually they have an indicator of what gear you're in - 1-7 on the right hand, 1-3 on the right. Only really cheap and really expensive shifters (some Ultegra) don't have indicators of what gear you're in.
    Most people are other people. Their thoughts are someone else's opinions, their lives a mimicry, their passions a quotation.
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  8. #8
    Junior Member DownTownie's Avatar
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    This shifter is on my new 2010 Electra Townie 21D. I love it's simplicity, but get frustrated that the shifters function opposite of each other (ie. on the right shifter the upper lever is to upshift and the lower lever is to downshift - but on the left shifter the upper lever is to downshift and the lower lever is to upshift). I would have preferred the left to match the right.

    It is very cool though, and the indicators will tell you what sprocket your on for each cog.

    Just my $.02,
    Jim
    2010 Electra Townie 21D

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    Cycle Dallas MMACH 5's Avatar
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    If there are numbers to indicate the gears, this is what you will find:
    L - R
    1 - 1 Easiest gear to pedal in or low gear. (Small front ring, large rear cog.)
    2 - 4 Middle gear ratio. (Middle front ring, middle rear cog.)
    3 - 7 Hardest gear to pedal or high gear. (Large front ring, small rear cog.)

    In it's simplest terms, use your low gears when you're riding slowly and high gears once you are up to speed (to remember: low gears = low speed -- hi gears = hi speed).
    However, unless you are doing some seriously technical riding, you will probably never even go to your easiest gear. Start out in 2 - 4 then progress to 2 - 5, then to 2 - 6.

    As you get stronger, you might begin to just keep the left shifter at 3 and only drop to 2 when you're on a hill.

    This may all sound like Greek, right now, but as you get used to using your gears, it will start to make sense.
    That's gonna leave a mark.

  10. #10
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    I will occasionally need to climb a SMALL hill, what gears should be used for this?

  11. #11
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    The RH shifter will have closer ratios than the LH shifter. For normal riding leave the LH shifter in 2 and do all your shifting with the right hand. For a sudden change in gradient it may de easier to shift with the left hand as that is the same a several shifts with the right hand.

  12. #12
    aka Phil Jungels Wanderer's Avatar
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    Quote Originally Posted by DownTownie View Post
    This shifter is on my new 2010 Electra Townie 21D. I love it's simplicity, but get frustrated that the shifters function opposite of each other (ie. on the right shifter the upper lever is to upshift and the lower lever is to downshift - but on the left shifter the upper lever is to downshift and the lower lever is to upshift). I would have preferred the left to match the right.

    It is very cool though, and the indicators will tell you what sprocket your on for each cog.

    Just my $.02,
    Jim
    Actually, they are both the same - clicking the shifters, in the same manner, moves the chain the same direction - toward the smaller sprocket, or toward the larger sprocket - in both instances....... start thinking in "sprockets" and all will be well.

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  13. #13
    Junior Member DownTownie's Avatar
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    Quote Originally Posted by Wanderer View Post
    Actually, they are both the same - clicking the shifters, in the same manner, moves the chain the same direction - toward the smaller sprocket, or toward the larger sprocket - in both instances....... start thinking in "sprockets" and all will be well.

    Yes, but using a larger sprocket on the rear is gearing down, and using a larger sprocket on the front is gearing up.
    Therein lies my conundrum.

    Jim

  14. #14
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    It takes a little more force to go up to a larger sprocket. This is why the thumb lever is used on both the front and rear sprockets when shifting to a larger sprocket. Just ride it for a while. It will become second nature in no time.

  15. #15
    Junior Member DownTownie's Avatar
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    Quote Originally Posted by mtnroadie View Post
    It takes a little more force to go up to a larger sprocket. This is why the thumb lever is used on both the front and rear sprockets when shifting to a larger sprocket. Just ride it for a while. It will become second nature in no time.
    That's exactly what I assumed, after putting some thought into it. I spend more time going up and down the rear gears anyway. I'm sure I'll get used to it eventually. It's just kinda like when you get a new car and someone puts Reverse, down and to the right instead of, up and to the left where it has always been. Ugh.

    Jim
    2010 Electra Townie 21D

  16. #16
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    does anyone know is their a way to adjust the distance between the top lever and the lever underneath

  17. #17
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    Quote Originally Posted by Ryan79 View Post
    does anyone know is their a way to adjust the distance between the top lever and the lever underneath
    No. All of the Shimano rapid-fire shifters I've seen and used have their index finger and thumb levers in fixed positions relative to each other.

    You can adjust the entire shifter assembly's angle on the handlebar though, by changing the position of the clamp that fastens the shifter assembly to the handlebar (requires an allen key).

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