Cassette question
#26
Senior Member
Join Date: Apr 2010
Location: Mountain View, CA USA and Golden, CO USA
Posts: 6,341
Bikes: 97 Litespeed, 50-39-30x13-26 10 cogs, Campagnolo Ultrashift, retroreflective rims on SON28/PowerTap hubs
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 550 Post(s)
Liked 325 Times
in
226 Posts
Measuring over 3 feet as Bill Kapaun suggests is great, if it is convenient to remove your chain from the bike, but one should be able to measure to 1/16" accurately with a good 15- or 18-inch steel rule. Here is an inexpensive set with a 15-incher: https://smile.amazon.com/eBoot-Stain.../dp/B071H4XCDW
#27
Senior Member
Join Date: Apr 2012
Location: Nor Cal
Posts: 6,016
Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 1814 Post(s)
Likes: 0
Liked 923 Times
in
569 Posts
As a general guide...When your chain ring looks like this...you might want to think about replacing it...
This was on a 2008 Trek 2.3 I bought at a garage sale several years back. Couldn't get around the block without the chain coming off.
I could have just replaced the ring, but decided to replace the 105 BB & Crank with new Ultegra BB & Crankset.
This was on a 2008 Trek 2.3 I bought at a garage sale several years back. Couldn't get around the block without the chain coming off.
I could have just replaced the ring, but decided to replace the 105 BB & Crank with new Ultegra BB & Crankset.
your chainring doesn't look particularly worn to me,
but the FD could be several mm lower for good shifting.