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

New: Take part in the September Giveaway for a Spider Rear Rack and a Heavy Duty Drybag from aeroe


2 problems (gears)
#1
1. The gears are sram x4. When I put pressure on my pedal to move off, there is usually a loud snap noise and it will tend to jerk forward (the pedal).

2. When I'm jumping down gears (front derailleur) it makes a long clicking noise (rubbing along the derailleur and not jumping down I think), in-order for me to jump down a gear I have to use the rear derailleur to go into the lowest gear then it gives.

What's the problem with these two?
  Reply
#2
1. Could be the chain jumping over the teeth on the rear cog indicating worn chain and cassette. But I wouldn't assume that until you rule out of the basic adjustments.

2. Sounds like you need to check all the front shifting adjustments. (Watch the video on this site). Short answer is either your inner limit screw is too tight on the front derailleur or front shifter cable has too much tension. But you should go through the full process of checking the shifting adjustments for both derailleurs regardless.
  Reply
#3
I have this exact same problem! I've just installed a new Sram PC971 9 Speed Chain, but not replaced the Cassette. Am I asking for trouble?

First gear is fine but when I apply pressure whilst in all other gears my gears bang!

The cassette physically looks fine though...Weird!
  Reply
#4
(01-31-2013, 12:28 AM)neo36uk Wrote:  I have this exact same problem! I've just installed a new Sram PC971 9 Speed Chain, but not replaced the Cassette. Am I asking for trouble?
......
yes.
Nigel
  Reply
#5
(01-31-2013, 01:12 AM)nfmisso Wrote:  
(01-31-2013, 12:28 AM)neo36uk Wrote:  I have this exact same problem! I've just installed a new Sram PC971 9 Speed Chain, but not replaced the Cassette. Am I asking for trouble?
......
yes.

just this second ordered a Sram PG970 9 Speed MTB Cassette 11-32T...just hope this fixes my problem...was fine with old chain and old cassette
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
11,429
09-16-2011, 03:13 AM
Last Post: Joe_W

Forum Jump:

[-]
10 Latest Posts
Hello from North Carolina
Today 09:36 AM
Raleigh "Trail" bike
Today 03:49 AM
Tour de France 2020
Yesterday 05:53 PM
frame choices
09-21-2020 10:08 AM
Front Derailer fails to shift to the big...
09-21-2020 06:12 AM
Know about the Hercules?
09-21-2020 04:18 AM
Pedals: Clip vs. Clipless
09-20-2020 07:43 PM
90's Raleigh R600
09-20-2020 06:21 PM
Proper way to torque a crank bolt on a s...
09-20-2020 03:37 PM
Where are you from and What is your favo...
09-20-2020 02:19 PM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
38 posts
no avatar 2. Papa Dom
13 posts
no avatar 3. G_M
12 posts
no avatar 4. Painkiller
10 posts
no avatar 5. Sagan97
9 posts