Re: Spetro 7 ? SRAM Dualdrive and Schlumpf Mountain-drive...

Quoth "John Turvey":

>  > Yes - I have this on my Greenspeed - actually it is a SRAM "3 by 7"
>>  (but converted to 8 speed derailleur by Greenspeed) as my Greenspeed is
>  > a 1999 model which is before SRAM started to sell the "Dueldrive" -

That's "DualDrive."

Igor Rali´c wrote:

>That must be a Sachs Spectro 7

No the Spectro 7 is a 7-speed internal hub, only one sprocket.
>
>It takes 7 speed HG cassette, pulled by chain and cable.
>
>Is it converted to 8 speeds,by using a 8 
>sprockets out of a 9 speed cassette ??
>
>As SheldonB says,that should work,and that's 
>what I plan to do,to get more low gears,
>as with 9 speed cassettes i have 34t largest sprocket,
>and with 7speed HG there is not bigger then 28t

That's not correct.  7 speed HG cassettes are 
available with 30, 32, even 34 tooth sprockets.

See: http://harriscyclery.com/7

Sheldon "K7" Brown
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