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#1 |
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On Feb 3, 11:42*pm, Sheldon Brown <CaptB...@sheldonbrown.com> wrote:
> quoth Andre Jute > > > ...Shimano specifically says the chainwheel/sprocket tooth > > ration should be between 2.0 and 2.1. > > I have never seen this spec for Nexus hubs. *I suspect this is related > to the Smover automatic transmission system, not to any limitation of > the Nexus hub itself. > > Smover isn't yet available on this side of The Pond, so I have no > experience with this, but as far as the hub itself is concerned, > there's no reason for Shimano or anyone else to object to a high gear > ratio. *It's only chain ratios that overstress hubs. > > My own Nexus 8 bikes are: > > http://sheldonbrown.org/raleigh-international52/19 w/28-622 tyres > > (I was running 52/18 when I was using that wheel on my Picchio tandem > for a couple of weeks.) > > and: > > http://sheldonbrown.org/iro52/18 w/33-584 tyres > > See also:http://sheldonbrown.com/gears/internal > > Sheldon "Neck's Us" Brown > +-------------------------------------------+ > | *My daughter is a fine singer. *She's on *| > | * *YouTube singing Dvorak and Mozart: * * | > | * * * *http://tinyurl.com/2wbf3c* * * * *| > +-------------------------------------------+ > *Harris Cyclery, West Newton, Massachusetts > * * Phone 617-244-9772 *FAX 617-244-1041 > * * * * *http://harriscyclery.com > * * Hard-to-find parts shipped Worldwide > * * * * *http://captainbike.com > *Useful articles about bicycles and cycling > * * * * *http://sheldonbrown.com Just noting it. |
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#2 |
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Guest
Posts: n/a
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Garrison Hilliard wrote:
> On Feb 3, 11:42 pm, Sheldon Brown <CaptB...@sheldonbrown.com> wrote: >> quoth Andre Jute >> >>> ...Shimano specifically says the chainwheel/sprocket tooth >>> ration should be between 2.0 and 2.1. >> I have never seen this spec for Nexus hubs. I suspect this is related >> to the Smover automatic transmission system, not to any limitation of >> the Nexus hub itself. >> >> Smover isn't yet available on this side of The Pond, so I have no >> experience with this, but as far as the hub itself is concerned, >> there's no reason for Shimano or anyone else to object to a high gear >> ratio. It's only chain ratios that overstress hubs. >> >> My own Nexus 8 bikes are: >> >> http://sheldonbrown.org/raleigh-international52/19 w/28-622 tyres >> >> (I was running 52/18 when I was using that wheel on my Picchio tandem >> for a couple of weeks.) >> >> and: >> >> http://sheldonbrown.org/iro52/18 w/33-584 tyres >> >> See also:http://sheldonbrown.com/gears/internal >> >> Sheldon "Neck's Us" Brown >> +-------------------------------------------+ >> | My daughter is a fine singer. She's on | >> | YouTube singing Dvorak and Mozart: | >> | http://tinyurl.com/2wbf3c | >> +-------------------------------------------+ >> Harris Cyclery, West Newton, Massachusetts >> Phone 617-244-9772 FAX 617-244-1041 >> http://harriscyclery.com >> Hard-to-find parts shipped Worldwide >> http://captainbike.com >> Useful articles about bicycles and cycling >> http://sheldonbrown.com > > Just noting it. It may sound maudlin, but I unmarked it as read, just so it wouldn't go away. |
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