10827Re: An Interesting Hybrid Drivetrain
- Feb 1, 2010The only reason I can see for such a setup as the Jamis one is if you definitely want a wider range overall IGH drivetrain than the 340% provided by the SRAM iM9 or the 305% provided by the Shimano 8 speed hubs and cannot afford a Rohloff hub.
I would use it with the chain normally on the large ring and only shift to the small one when encountering riding conditions where the lowest gears available were needed.
I originally posted to show what is available and that some bike manufacturers are willing to think outside of the box of drivetrain orthodoxy.
--- In firstname.lastname@example.org, "speedub_nate" <speedub.nate@...> wrote:
> --- In email@example.com, Andrew Kreps <andrew.kreps@>
> > In my mind, it's all about maintenance. With an internally geared
> hub, the
> > chain isn't constantly jumping cogs, wearing it out; there is also no
> > rear derailleur to adjust periodically. When it comes time to replace
> > rear cog, it's probably closer to $10 than $80 for the fancier 9 speed
> > cassettes. Depending on your hub, you can also shift while stopped.
> Good points, though I'd still rather live with a rear derailleur over a
> front derailleur given the choice. But no derailleurs is better yet,
> and my bikes all agree wholeheartedly with that sentiment! :)
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