Phantom Shifting
03-25-06 | 05:06 PM
#1
Thread Starter
Senior Member
Joined: Jan 2006
Posts: 217
Likes: 0
From: Red Bank, NJ
Phantom Shifting
Not much of a bike mechanic, but think this should probably be something simple. My bike seems to be shifting on its own lately on the rear rings. The bike is new and only has 250 miles on it. Seems like when I am on the small ring is when this happens most. Particularly when I am hitting it hard or going up hill. Is this a problem with the rear derailleur? All help greatly appreciated.
03-25-06 | 05:18 PM
#2
118AHC "Thunderbirds"
Joined: Oct 2005
Posts: 232
Likes: 0
From: AL.
Bikes: Numerous (wife says to many)
You're do for a new bike tune up after 250mi. Take it to the dealer for adjustment of the cables, they stretch.
03-25-06 | 07:27 PM
#4
On Two Wheels
Joined: Mar 2005
Posts: 514
Likes: 0
From: Middle Tennessee
Bikes: Moots Vamoots, Bianchi Volpe, 2 Salsa Casserolls (fixed & Triple), 2011 Salsa Chili Con Crosso, 1983 Schwinn Supersport, Schwinn Mesa MTB
Originally Posted by Chopper1
Particularly when I am hitting it hard or going up hill.
"They" said to put a little grease in the guides under the bottom bracket.
It seemed to solve that problem for me one time. But then again, I was a total noob back then. Could not adjust a derailleur to save my life. But I have continued the practice anyhow.
03-25-06 | 07:31 PM
#5
Gone, but not forgotten
Joined: Jul 2002
Posts: 2,301
Likes: 12
From: Newtonville, Massachusetts
Bikes: See: https://sheldonbrown.org/bicycles
Originally Posted by Chopper1
Not much of a bike mechanic, but think this should probably be something simple. My bike seems to be shifting on its own lately on the rear rings. The bike is new and only has 250 miles on it. Seems like when I am on the small ring is when this happens most. Particularly when I am hitting it hard or going up hill. Is this a problem with the rear derailleur? All help greatly appreciated.
and: https://sheldonbrown.com/derailer-adjustment
Sheldon "Grease The BB Cable Guide" Brown
Code:
+-------------------------------------------------------------+ | Want of care does us more damage than want of knowledge. | | -- Benjamin Franklin | +-------------------------------------------------------------+
03-25-06 | 09:02 PM
#6
On Two Wheels
Joined: Mar 2005
Posts: 514
Likes: 0
From: Middle Tennessee
Bikes: Moots Vamoots, Bianchi Volpe, 2 Salsa Casserolls (fixed & Triple), 2011 Salsa Chili Con Crosso, 1983 Schwinn Supersport, Schwinn Mesa MTB
Originally Posted by sam83
Okay, I don't know if this is BS or not...
