Question about Shimano Xtr Mountain Bike Dual Control Brake/Shift Levers

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I have Shimano EF-50 7sp Rapid Fire shifters on my Diamondback. The thumb levers shift OK but no longer return all the way to the start position. The bike has about 700 miles and two years on it. Can this be adjusted or are the shifters wearing out?

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Posted on Jan 02, 2017

  • 18 Answers

SOURCE: Shimano st 7900 shifter,left lever apart and how to reassemble

You can download an exploded diagram of the 7900 series STI shifters here:

http://techdocs.shimano.com/media/techdocs/content/cycle/EV/bikecomponents/ST/EV-ST-7900-2874E_v1_m56577569830670749.pdf

You can reassemble them according to this diagram.

Posted on Jul 07, 2009

  • 636 Answers

SOURCE: shimano 70gs rear derailleur won't shift. The

Is the cable still attached ? have you tried adjusting the cable?

Posted on Jul 26, 2009

  • 170 Answers

SOURCE: My Shimano Alvio 3-speed front shifter has

rough guess, from past life of bmx.
there should be a cable that runs down to the mechanism, the cable is secured by a small nut, loosen the nut and pull the cable a little more out of the nut with pliers. tighten the nut, and try the linkage.
the shift cable stretches over time and your actually gonna make a small adjustment to compensate for the stretch. by just pulling the cable thru the locking nut to make it shorter.

Posted on Jul 31, 2010

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1 Answer

Shimano 200GS STI, upshift lever moves freely but when released, it returns the derailluer back to the lowest gear. How do you take the shifter apart?


"Upshift lever" could be either one since they both shift up or down.

I'd make sure it's a lever problem before embarking on that project. Is the cable actually being controlled by the lever?

A simple web search for "Shimano 200GS STI assembly" yields all kinds of resources.

Another good start would be http://www.shimano.com/

Other web searches like "how to.." work, too.

Aug 02, 2011 | Cycling

1 Answer

Ive a new rear deore unit cable and housing etc. where does the cable secure in the shifter unit? I can see a small metal arch but cant figure where the end of the cable actually fixes


Not a great picture but if you follow the arched groove back from the cable-housing guide it leads to a little hole. THAT is where you stick the cut end of the cable.

http://techdocs.shimano.com/techdocs/index.jsp

Accounting for physical differences, this should get you going.

http://www.parktool.com/blog/repair-help/shift-levers-shifters

Jun 21, 2011 | Shimano Deore Xt Thumb Shifters 7...

1 Answer

I have the Shimano Rapidfire Plus shifter on my Topanga bicycle and it started to not shift it just has free play! I try to shift it and it just moves free and once and awhile it will shift. Will I have...


It may be fixable.Try to clean it and then tighten the cable that is on the rear of the shifter assembly.Then make sure the controller is tight and clean.If it still wont work check to make sure the mounting bracket is not bent.The mounting bracket may also have an adjuster on it.

May 11, 2011 | Diamondback Topanga 26 Men's...

1 Answer

My Shimano Alvio 3-speed front shifter has


rough guess, from past life of bmx.
there should be a cable that runs down to the mechanism, the cable is secured by a small nut, loosen the nut and pull the cable a little more out of the nut with pliers. tighten the nut, and try the linkage.
the shift cable stretches over time and your actually gonna make a small adjustment to compensate for the stretch. by just pulling the cable thru the locking nut to make it shorter.

Jul 31, 2010 | Mountain Shimano Alivio Front Bike...

1 Answer

New shifters for deore xt x7 delrailer


Shimano make an "EZ fire" which is an integrated shifter/brake lever combination and cheaper than buying seperate shifters and levers.


e.g.
http://www.tredz.co.uk/.Shimano-Acera-8-Speed-EZ-Fire-ShiftersBrake-Lever_24339.htm


Feb 07, 2010 | Shimano Deore Xt Thumb Shifters 7...

1 Answer

7 speed alivo shifter no down shift


Hi log onto shimano.com and you will find what you are looking for

Oct 15, 2009 | Mountain Shimano Alivio Front Bike...

4 Answers

Deore dx shifter stops working


had the same problem, didn't use my bike for longer period. open the shift lever carefully and try something like caramba. worked for me.
sebastian

Sep 07, 2009 | Shimano Deore Xt Thumb Shifters 7...

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