drivetrain mileage
03-18-11 | 03:43 PM
#26
Knowing's half the battle
Joined: Jul 2005
Posts: 6,119
Likes: 3
From: Omaha, NE
Bikes: 2009 Cannondale CAAD9 BB30, SRAM Red, Fulcrum Racing 3s
I got some burrs in a Campy chainring once. Only time I ever swapped one out. About the same 2,500/10,000 for chains/cassettes as everyone else.
03-18-11 | 04:15 PM
#27
Senior Member
Joined: May 2010
Posts: 1,832
Likes: 1
From: Driftless
Bikes: Caad8, Mukluk 3, Trek Superfly, Gary Fisher Irwin.
why would a narrow chain wear faster? doesn't make sense when I think about it.
btw 5-6k miles on my last chain. always kept it clean. In the TDF they swap chains every week. but thats the tdf.
btw 5-6k miles on my last chain. always kept it clean. In the TDF they swap chains every week. but thats the tdf.
03-18-11 | 04:34 PM
#29
Senior Member
Joined: Apr 2010
Posts: 6,341
Likes: 326
From: Mountain View, CA USA and Golden, CO USA
Bikes: 97 Litespeed, 50-39-30x13-26 10 cogs, Campagnolo Ultrashift, retroreflective rims on SON28/PowerTap hubs
Most chains require retirement due to elongation which comes from the holes in the inner plates growing larger and pins becoming smaller.
Since 3/32" derailleur chains are all the same inside width the total width decreases come from thinner side plates.
Thinner side plates mean a smaller bearing surface and higher pressures which should result in faster wear at the inner plate/pin contact points.
Since 3/32" derailleur chains are all the same inside width the total width decreases come from thinner side plates.
Thinner side plates mean a smaller bearing surface and higher pressures which should result in faster wear at the inner plate/pin contact points.
03-18-11 | 04:39 PM
#30
Senior Member
Joined: Apr 2010
Posts: 6,341
Likes: 326
From: Mountain View, CA USA and Golden, CO USA
Bikes: 97 Litespeed, 50-39-30x13-26 10 cogs, Campagnolo Ultrashift, retroreflective rims on SON28/PowerTap hubs
After 10 years I started getting spontaneous down shifts when running a large cog with my big ring with the derailleur not moving. After a painful crash I got new rings and eliminated the problem. I never checked whether it was wear or bent teeth - I just wanted the ring gone.
