A
Artemisia
Guest
Me again, one more question.
I am assuming that I will order the Scorpion FX with the option of a
Sram Dualdrive on the back and a three-speed cassette on the front.
The Price List stipulates:
"drivetrain DualDrive XT-81 81 speed rear derailleur XT / cassette
XT / DualDrive 3 speed hub / bar end shifters / grip shifter for
DualDrive gear development 0,98 - 9,81 m (3'3'' - 32'3')"
I will be taking this trike up some very steep hills. I'm looking
forward to being able to use very low gears, much lower than would
allow me to remain upright on a 2-wheeler.
However, when I spoke to a dealer in Angers about this option, he told
me he didn't think it was very useful, insofar as the gear range would
not be that much greater than with the SRAM Dualdrive alone, that is
fitted as standard, and that most of the gears would be overlapping
anyway.
Flyzipper has the simple SRAM Dualdrive three by seven. Admittedly I
have never used the lowest of his 24 gears. I do find myself spinning
out on his highest gears, however, on some of those long smooth Czech
descents.
It also appears that the front gears would not be changeable at a
standstill, which is a disadvantage in comparison to the Greenspeed
GT0 setup which combines a SRAM DualDrive in the back with a Sturmey
Archer in the front. The Scorpion 81-speed would have only the three
SRAM levels on the back that could be shifted at a standstill.
Unfortunately HPV doesn't offer Schlumpf Mountain Gearing, which
sounds like it could be the option delivering the widest range.
Anyway, what do does the ng think? Does this 81 speed setup really
deliver an advantage over the standard 24 speed?
Thanks again for all your expertise.
EFR
In hilly Ile de France
I am assuming that I will order the Scorpion FX with the option of a
Sram Dualdrive on the back and a three-speed cassette on the front.
The Price List stipulates:
"drivetrain DualDrive XT-81 81 speed rear derailleur XT / cassette
XT / DualDrive 3 speed hub / bar end shifters / grip shifter for
DualDrive gear development 0,98 - 9,81 m (3'3'' - 32'3')"
I will be taking this trike up some very steep hills. I'm looking
forward to being able to use very low gears, much lower than would
allow me to remain upright on a 2-wheeler.
However, when I spoke to a dealer in Angers about this option, he told
me he didn't think it was very useful, insofar as the gear range would
not be that much greater than with the SRAM Dualdrive alone, that is
fitted as standard, and that most of the gears would be overlapping
anyway.
Flyzipper has the simple SRAM Dualdrive three by seven. Admittedly I
have never used the lowest of his 24 gears. I do find myself spinning
out on his highest gears, however, on some of those long smooth Czech
descents.
It also appears that the front gears would not be changeable at a
standstill, which is a disadvantage in comparison to the Greenspeed
GT0 setup which combines a SRAM DualDrive in the back with a Sturmey
Archer in the front. The Scorpion 81-speed would have only the three
SRAM levels on the back that could be shifted at a standstill.
Unfortunately HPV doesn't offer Schlumpf Mountain Gearing, which
sounds like it could be the option delivering the widest range.
Anyway, what do does the ng think? Does this 81 speed setup really
deliver an advantage over the standard 24 speed?
Thanks again for all your expertise.
EFR
In hilly Ile de France