Question about Mountain Shimano Deore Bicycle Shifter/brake Lever Part 100

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I bought a new Shimano SL-MC40-7R Rear shifter. The forward lever does not click back to its position. I have to manually pull it back to reload it. Is that normal?

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Posted on Jan 02, 2017

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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

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  • 484 Answers

SOURCE: Shimano Deore LX right hand rear shifter

HERE is Shimano's exploded-view diagram of the shifters, but it really only gives you a ballpark idea of the assembly. You will have to piece the rest together from memory, i suppose. Sorry, i could not find more information for you.

Hope this helps a little,
matt

Posted on Oct 08, 2009

johnegan84
  • 73 Answers

SOURCE: require assembly schematic for shimano dura ace

log onto Shimano.com, it is probably the limit screws (the two screws that limit travel) or you have a faulty ratchet in the lever, try the shimano website anyway they have great tutorial and manual support

Posted on Mar 27, 2010

dunnbiker
  • 8546 Answers

SOURCE: replace cable on shimano sl m510 shifter

Official drivetrain instructions from the manufacturer:

http://techdocs.shimano.com/media/techdocs/content/cycle/SI/Deore/RearDriveSystem/SI-R740G-En_v1_m56577569830612825.pdf

Look at the picture under Installation of the Lever.

Posted on Mar 31, 2010

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2 Answers

My shimano ultegra left shifter is super stiff/hard to push in; what is going on?


Try flushing out the shifter(s) with WD-40, use plenty. The next step will be replacing the shift cables and cable housings.
  • Take the bicycle in an area free of cars and obstacles, such as an open parking lot. Concentration is required when learning to use Ultegra shifters or any other type of bicycle shifter.
  • 2 Mount the bicycle and rest both hands on the proper Ultegra hand control. The left-hand control operates the front derailleur. The right-hand control operates the rear derailleur.
  • 3 Start pedaling, smoothly and evenly. While pedaling is crucial to propelling the bicycle forward, it is also necessary when shifting the derailleur. Pedaling forces the chain to rotate. The chain must rotate before it can transfer to another gear.
  • 4 Push the outside right Shimano Ultegra lever in toward the bicycle. The rear derailleur will shift the chain to a smaller rear gear.
  • 5 Push the inside right Shimano Ultegra lever in toward the bicycle. The rear derailleur will shift the chain to a larger rear gear.
Rear Ultegra Derailleur Control
  • 1 Push the outside left Shimano Ultegra lever in toward the bicycle. The front derailleur will shift the chain to larger front gear.
  • 2 Push the inside left Shimano Ultegra lever in toward the bicycle. The front derailleur will shift the chain to a smaller front gear.
  • 3 Use the front and rear Ultregra hand controls interchangeably. For small changes in gearing, using the rear control. For larger changes, choose the front control. A smaller gear causes the bicycle to travel a shorter distance per pedal stroke but also requires less energy to use. A larger gear requires greater effort but in turn causes the bicycle to travel farther per pedal stroke.

Oct 25, 2011 | Cycling

1 Answer

Hi, Just bought a new bike with shimano tiagra gearing. However the gear shifters doesn't seem to work. There is no movement in the cables when I try to shift gears. Do you have any idea for a quick fix or...


You don't mention which shifter(s) malfunction or if you're even pedaling the bike while shifting (I make NO assumptions).

If you operate the inner shift lever (NOT the brake lever) on each side through several clicks that should RELAX any tension in the shifter cables. Then if you pick the bike up and pedal it forward a couple of turns the front shifter should drop the chain the the lowest chainring and the rear derailleur should shift out the the smallest cog.

With the bike suspended (say, hanging from a low tree branch by the tip of the seat) you should be able to turn the cranks and manually pull sideways on either exposed shifter cable where it runs down along the downtube then release it.

This should cycle each respective derailleur through its entire range. If the cables don't travel sufficiently in this manner, the shifters will never make them do it either.

Perhaps you could CALL the Bike Shop and they would talk you through a quick operational check.

Apr 27, 2010 | Shimano 24 Speed Road Racing Bike Bicycle...

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

Shimano Deore LX right hand rear shifter


HERE is Shimano's exploded-view diagram of the shifters, but it really only gives you a ballpark idea of the assembly. You will have to piece the rest together from memory, i suppose. Sorry, i could not find more information for you.

Hope this helps a little,
matt

Oct 07, 2009 | Mountain Shimano Deore Bicycle...

1 Answer

How do I replace rear shifter cable in shifter lever? Older Shimano Deore XT


ok this is a little hard to explain in words but the important thing is to make sure the chain is on the biggest cog, pull the cable through the deralier tight and fasten. don't pull it too tight however. you may need to fine tune using the h/l screws but if it was in tune before then it shouldn't need too much adjustment.

Oct 03, 2009 | Shimano Deore Xt Thumb Shifters 7...

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...

2 Answers

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.

May 11, 2009 | Shimano 2008 Dura-Ace BR7800 Rear Road...

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