I mean this in the nicest possible way, but unless I'm misunderstanding something terribly, there's no way you should be spending 70% of your time riding in your highest gear. It makes my knees hurt just thinking about it. You should be trying to ride in approximately the 90-100RPM range. "Spinners" might tell you higher. "Mashers" might tell you lower. 90-100 is a good medium. If I was riding in my highest gear at 90RPM, I'd be going 30MPH. I use my highest gear much less than 1% of the time. Completely separate from drivetrain wear, I recommend you get some advice on that front. Focussing on drivetrain wear, if you ride 2700 miles on a single 12 or 11 tooth cog, it's probably worn out. Replace.
On Tuesday, April 17, 2012 10:59:56 AM UTC-7, pam wrote: > > I tried looking at the cog but I can't tell much. I'm not very > mechanical. I'll look at the chainring too. It wasn't knocked out of > adjustment because I watched him install it. I checked the master > link. It looks ok. It may be the derailleur but I have friction > shifters so I wouldn't think it was that. I'm not going to make any > adjustments. I'll take it back to the LBS to check. It's not very > often - just twice in 14 miles yesterday. > > And it is in the smallest cog on the cassette in the largest chain > ring. That's where I do most of my riding - probably 70% of the > time. > > On Apr 16, 11:32 am, Peter Morgano <uscpeter11...@gmail.com> wrote: > > Only skipping in smallest cog makes me think it is a deraileur > adjustment, > > maybe they knocked it out of whack a bit on the install. Did you try > > adjusting the tension back there? I dont know your level of expertise > but > > if you havent done this kind of thing before just remember to go slow > and > > make small adjustments or else you will have it back at the LBS paying > them > > to do it. The late great Sheldon Brown has a few articles on the net > about > > it. > > > > > > > > > > > > > > > > On Mon, Apr 16, 2012 at 11:26 AM, pam <pamelamurra...@gmail.com> wrote: > > > More detail - the chain and cassette were new last May from > > > Rivendell. I've ridden about 2700 miles and I just learned about > > > keeping the chain clean so I understood I needed a new chain. The new > > > chain does have a master link. If the cassette is worn, do I replace > > > the whole thing? I've only noticed the skipping in the smallest cog. > > > Can the cog just be replaced or the whole thing? I'll look at the cog > > > and try to see. > > > > > On Apr 15, 8:39 pm, newenglandbike <matthiasbe...@gmail.com> wrote: > > > > Hi Pam, > > > > > > I'd maybe take a look at your cogs and chainrings (if you haven't > > > replaced > > > > those too), and make sure that the teeth aren't too worn. You'll > know > > > if > > > > the teeth end in sharp points like a shark fin. > > > > > > Matt > > > > > > On Sunday, April 15, 2012 8:31:56 PM UTC-4, pam wrote: > > > > > > > I just got a new chain after LBS told me the old one was worn out. > > > > > The new one occasionally skips. The old one never did. What's > the > > > > > problem? > > > > > -- > > > You received this message because you are subscribed to the Google > Groups > > > "RBW Owners Bunch" group. > > > To post to this group, send email to rbw-owners-bunch@googlegroups.com. > > > > To unsubscribe from this group, send email to > > > rbw-owners-bunch+unsubscr...@googlegroups.com. > > > For more options, visit this group at > > >http://groups.google.com/group/rbw-owners-bunch?hl=en. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To view this discussion on the web visit https://groups.google.com/d/msg/rbw-owners-bunch/-/omtfxlaKv0cJ. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
