Quantcast

Cannondale Prophet with derailleur problems

willyj

willyj

Chimp
Jun 2, 2008
52
0
HIGH COUNTRY
I have a 2008 Prophet that i have had for about 2 weeks now and i love it.My only problem is that i have already broken two derailleurs.The weird thing is that i didn't hit it on anything or crash.Both times the derailleur has snapped on the first hinge where the bump stop bolts are.Has anyone experienced this same problem and what did you do to fix it?
 
willyj

willyj

Chimp
Jun 2, 2008
52
0
HIGH COUNTRY
Well i tried it with a little longer chain,like 2 or 3 links and it skipped bad.I then took out two links, and it broke again.Also it is a single ring set up up front with a chain guide and the rear has a road cassette.Also i was using mid cage road derailleurs ( shimano)
 
IH8Rice

IH8Rice

I'm Mr. Negative! I Fail!
Aug 2, 2008
24,524
494
Im over here now
willyj said:
Well i tried it with a little longer chain,like 2 or 3 links and it skipped bad
Click to expand...
how did it skip?
it sounds like your chain is too short if you broke your dérailleur again after taking the extra links out.
if you can figure it out, try bringing to someone who knows that they are doing
 
J

JRogers

talks too much
Mar 19, 2002
3,785
1
Claremont, CA
IH8Rice said:
how did it skip?
it sounds like your chain is too short if you broke your dérailleur again after taking the extra links out.
if you can figure it out, try bringing to someone who knows that they are doing
Click to expand...
If he just put the links in on the used chain then the skipping was probably either stiff links or (more likely) new links on a stretched chain that was mated to the other components. A set of new links on a a worn cassette, rings or pulleys will probably not work so well, especially with a mostly worn chain.
 
willyj

willyj

Chimp
Jun 2, 2008
52
0
HIGH COUNTRY
new chain,new cassette, and new links. I realize the chain could be too short but i really just wanted to see if anyone else experienced this problem with the prophet, because the ways that its happened are ridiculously stupid
 
woodsguy

woodsguy

gets infinity MPG
Mar 18, 2007
1,083
1
Sutton, MA
I've only broken 1 (maybe 2) deraileurs in the 6 seasons (3000+mi) with my Prophet. And they were caused by sticks. It might be getting caught in your spokes. Check your hanger and wheel.
 
bballboy388

bballboy388

Monkey
Dec 4, 2004
812
0
The way i always tested the chain length was putting it in the hardest in the back and easiest in the front (smallest rings) and making sure the chain was just short enough that it didn't rub the bottom of the derailleur. It's always worked for me and usually you can go into your big big with that set up.

Greg
 
You must log in or register to reply here.
Top Bottom