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Old 09-23-11, 01:55 PM   #1
kkdishin
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Shimano 7-speed below-the-bar shifter question

Hi all,
I have a question regarding my Shimano 7-speed below-the-bar shifter on my GT Aggressor. Last week I lent my bike to a friend and he apparently braked too hard on the front brakes and flipped over the handles. The bike came back with only a few scratches (Friend was okay as well ) but today when I decided to go for a bike ride I noticed that the "LOW" shifter wouldn't "push in". It was getting caught on the "shifter unit" as if it were bent. It doesnt look bent nor does it look like it could bend back. The shifter is one whole "unit" so it's not like I can really do anything without taking it apart.
Here is my speed shifter: http://upload.wikimedia.org/wikipedi...mb_shifter.JPG

Any ideas? Thanks
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Old 09-23-11, 02:51 PM   #2
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Have you try using the high lever and goes thou all the gears ? The unit might be jam . remove the two screws on top , spray WD-40 and see it it will work then . Shimano doesn't make replacement part so the whole unit will need to be replace . a set run about $ 30 -40 .
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Old 09-23-11, 04:17 PM   #3
kkdishin
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Originally Posted by bikeman715 View Post
Have you try using the high lever and goes thou all the gears ? The unit might be jam . remove the two screws on top , spray WD-40 and see it it will work then . Shimano doesn't make replacement part so the whole unit will need to be replace . a set run about $ 30 -40 .
Hi,
The gears work fine, I can cycle through all of them, its just that the "LOW" gear gets stuck. The shifter is only a couple mm too high as if it had been knocked out of place. I have to force it down and over for it to change. If I cant find a solution do you know where I can purchase one of these?
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Old 09-24-11, 04:53 PM   #4
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yes you can find them at your Local Bike Shop ,if not they can be order thou QBP . or on line like at Amazon.com http://www.amazon.com/Shimano-EF-51-...904656&sr=8-21

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Old 09-24-11, 05:06 PM   #5
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Often, if the plastic/rubber thumb tab is bent and you see that it's steel, some firm but gentle prying and work it back so that the rubber cover has clearance and will move freely. But make sure the unit itself is fixed properly and flush with the rest of the assembly. A knock that that can crack the mounting so that it still functions, but is likely to fail soon unless remounted correctly or replaced if the mounting system is broken.

Bending the thumb tab back, however, might be the ticket and if everything else is flush and firmly affixed, then you've saved the cost of heading out to buy new hw.
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Old 09-24-11, 07:46 PM   #6
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Alrighty, thanks for the advice and help guys, Il ltry bending the thumb tab down. if it fails or breaks ill buy another.
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