Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the January Giveaway for a Trifox Carbon MTB Riser Handlebar


Deore shifter problems
#1
Hello,
I've got a Trek MTB that the Rapidfire shifter works great on when going up the gears, but when I shift down, it either shifts two gears up or not quite one gear up. Mainly does this in the middle gears(8 speed). The end points are right on and everything is adjusted properly.
What do you guys think the deal is with this??
Thanks,
PJ
  Reply
#2
If the cable tension is adjusted properly, the next thing I would check for is a bent derailleur or hanger. Also look for cable housing that is kinked, splitting, not fitting properly into stops, etc.
  Reply
#3
(10-01-2013, 09:03 PM)!TREK4ME! Wrote:  I've got a Trek MTB that the Rapidfire shifter

You can clean & lube the shifter, or replace it. This is a common issue. If you look in the Repair Guide at the top of the page there is a video about it.
  Reply
#4
Cool... Thanks !!!!!!!
  Reply
#5
Well, I lubed and it is still shifting up two gears or either a half gear... Oh well, looks like a new one is in the future...
Anyone have a good used one they want to part with?? It's a Shimano SL-MC20.
Thanks!!,
PJ
(10-01-2013, 09:07 PM)DaveM Wrote:  If the cable tension is adjusted properly, the next thing I would check for is a bent derailleur or hanger. Also look for cable housing that is kinked, splitting, not fitting properly into stops, etc.

Everything here looks fine.
Thanks!!,
PJ
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
1,385
04-21-2019, 10:41 PM
Last Post: peter bill
 
5,471
06-23-2017, 09:39 AM
Last Post: dude
 
15,667
02-21-2013, 07:28 AM
Last Post: Henry
 
5,612
11-19-2012, 11:29 PM
Last Post: RobAR
 
12,969
04-26-2011, 12:31 AM
Last Post: GeorgeET

Forum Jump:

[-]
10 Latest Posts
My Bicycle memories
Yesterday 04:19 PM
2021 Pro Road Cycling
Yesterday 04:18 PM
Bicycle renovation suggestions.
Yesterday 03:30 PM
Can someone identify this Bottom Bracket...
Yesterday 01:21 AM
Trifox carbon frames
01-24-2021 08:56 PM
11-42 cogs on Road bike?
01-24-2021 12:24 PM
Big Basso, Tiny Colnago
01-23-2021 08:11 PM
NewBikeShopper (intro & opinion request)
01-20-2021 01:57 AM
1983 Trek 720
01-20-2021 12:23 AM
brakes
01-19-2021 11:25 PM

[-]
Top 5 Posters This Month
no avatar 1. Criminal
19 posts
no avatar 2. RollOn
6 posts
no avatar 3. Yevhen
5 posts
no avatar 4. NewBikeShopper
4 posts
no avatar 5. Kris McGowan
3 posts