________________________________
From: EricP <ericpl...@aol.com>
To: RBW Owners Bunch <rbw-owners-bunch@googlegroups.com>
Sent: Wed, September 29, 2010 8:11:18 AM
Subject: [RBW] Re: wimpy cassettes and chain rings
Agree with Steve here. Back from 1983 to 1986 would go through two or
three freewheels a year. And a like number of chainrings. That was
commuting to college through Minnesota winter and using too thick of
oil. Ate the rings alive.
The newer stuff seems to be pretty good. Although will admit to a
preference for steel chainrings or 7051. And also replace the chain
more frequently than needed. Well, most of the time. Seems to keep
excess wear at bay. At least for me and my riding habits.
But, yes, rain and grit does seem to wear stuff out quickly. Just not
sure it's any quicker than before.
Eric Platt
St. Paul, MN
On Sep 28, 9:09 pm, Steve Palincsar <palin...@his.com> wrote:
> On Tue, 2010-09-28 at 19:03 -0700, MobileBill wrote:
> > The questions: Could it be that cassettes and chain rings have become
> > remarkably less durable in the past XX years? Are lightweight high end
> > cassettes and chain rings more or less durable than lower end rings?
> > Or have the indents and carvings on the hyperglide systems made
> > components more vulnerble to wear? Is it that modern cassettes and
> > rings are machine (laser?) cut whereas the old freewheels were hand
> > cut? Any significant difference in manufacturers (shimano vs. sram?)
> > Or am I just making this up?
> > The situation: I'm kind of appalled that I've managed to wear
> > serious shark's fins in my middle, 36T, ring in fewer than 3,500
> > miles. Cassette is just as bad. Should have changed em out a 1,000
> > miles ago. Both are Riv standard issue, which is at the low end of the
> > shimano scale (HG30), and would presumably be heavier and perhaps more
> > durable than the super lightweights at the upper end of the scale (HG
> > 70). It's a rough world on my commute, frequent stops and quick
> > accelerations, grinding hills, frequent rains and lots of additional
> > weight from computers, groceries and what not. But the transmission
> > gets frequent maintenance, and I have freewheels and chain rings that
> > are very nearly two decades old and still useable.
> > Implications: At this rate, I'm going to be replacing cassette and
> > one to two chain rings (not to mention the chain) twice! each year on
> > the beloved Saluki. Is it time to reassess whether cassette and chain
> > ring improvements are really an improvement? Are there transmission
> > components more appropriate for Riv riders who have little use for the
> > racing style refinements of modern cassettes and chainrings?
>
> I'm using those same Hyperglide components -- typically XTR (cranks)
> and XT, cassettes usually Ultegra or HG70 and have been doing so
> for quite some time. I have tens of thousands of miles on chain
> rings, and I usually get many thousands of miles on chains and cassettes.
> On the other hand, I used to get no more than 2-3000 miles on a
> freewheel back in the 70s and 80s.- Hide quoted text -
>
> - Show quoted text -
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