Chain jumps under load
11-03-08, 08:49 AM
#2
Senior Member
Join Date: May 2008
Location: Zang's Spur, CO
Posts: 9,083
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 3375 Post(s)
Liked 5,514 Times
in
2,857 Posts
Did you recently replace the chain?
11-03-08, 09:02 AM
#3
Senior Member
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,656
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 2026 Post(s)
Likes: 0
Liked 1,096 Times
in
742 Posts
I expect the shift cable tension need tweaking. After 1500 miles the cables will have bedded in and, in effect, be slightly longer than when first installed. Tightening the cable slightly should solve the problem. Turn the barrel adjuster on the rear derailleur counterclockwise about 1/2 turn and see if this fixes it.
Also, you should shift while still turning the crank. Shifting while stationary will produce a "jump" when you first turn the pedals afterward.
Also, you should shift while still turning the crank. Shifting while stationary will produce a "jump" when you first turn the pedals afterward.
11-03-08, 09:30 AM
#4
Senior Member
Join Date: Apr 2007
Location: Munising, Michigan, USA
Posts: 4,131
Bikes: Priority 600, Priority Continuum, Devinci Dexter
Mentioned: 14 Post(s)
Tagged: 0 Thread(s)
Quoted: 685 Post(s)
Likes: 0
Liked 55 Times
in
37 Posts
You should be able to feel the shift and know that it's happened.
11-04-08, 07:48 AM
#5
Senior Member
Join Date: Sep 2008
Location: yreka, ca
Posts: 542
Bikes: like 15. my favorite a 1951 schwinn spitfire cruiser. also have a 1959 amf roadmaster, 1962 jch deluxe cruiser among others.
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
if its not a frozen link in the chain and if you on't need to replace that chain, check for worn teeth on you rear cogs and front chainrings. both pulley cog qheels in good shape? thats where id start.
