missing 2 gears
06-14-13, 06:14 PM
#1
Newbie
Thread Starter
Join Date: Jun 2008
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
missing 2 gears
Hi all. I have a 21 speed bike and when I switch gears the chain does no go into the smallest and the third smallest cog on the back wheel. What could be causing this? It happens no matter what sprocket I'm in on the front sprocket and the cassette on the rear wheel looks ok.
06-14-13, 06:58 PM
#2
Super Moderator
Join Date: Jul 2004
Location: Ffld Cnty Connecticut
Posts: 21,843
Bikes: Old Steelies I made, Old Cannondales
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 1173 Post(s)
Liked 927 Times
in
612 Posts
Cable is probably a bit out of adjustment. If parts of the drive train have been replaced, then therr could be mismatched parts. More details and pictures always help. You can go to Parktool.com if you want diy guidance.
__________________
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.
FYI: https://www.bikeforums.net/forum-sugg...ad-please.html
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.
FYI: https://www.bikeforums.net/forum-sugg...ad-please.html
06-14-13, 09:06 PM
#3
Senior Member
Join Date: Feb 2005
Location: Oklahoma
Posts: 9,438
Bikes: Trek 5500, Colnago C-50
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 7 Times
in
6 Posts
Check for a bent derailleur hanger.
Check the cable routing at the rear derailleur. Cable should run through a groove next to the fixing bolt. There must be no interference with the cable, washer tab must not be pushing against the cable.
Check the cable routing at the rear derailleur. Cable should run through a groove next to the fixing bolt. There must be no interference with the cable, washer tab must not be pushing against the cable.
06-14-13, 10:41 PM
#4
Insane Bicycle Mechanic
Join Date: Mar 2008
Location: other Vancouver
Posts: 9,837
Mentioned: 34 Post(s)
Tagged: 0 Thread(s)
Quoted: 805 Post(s)
Liked 706 Times
in
377 Posts
Hi all. I have a 21 speed bike and when I switch gears the chain does no go into the smallest and the third smallest cog on the back wheel. What could be causing this? It happens no matter what sprocket I'm in on the front sprocket and the cassette on the rear wheel looks ok.
It would help to know what kind of bike this is, whether it's new, how long it's been sitting if it isn't new, etc.
__________________
Jeff Wills
Comcast nuked my web page. It will return soon..
Jeff Wills
Comcast nuked my web page. It will return soon..
Thread
Thread Starter
Forum
Replies
Last Post
bennie222
Bicycle Mechanics
3
03-09-11 05:08 PM
