Re: Can Too High Gears be Lowered on SRAM Dualdrive?

Artemisia wrote:
> Peter Clinch wrote:
> 
>> It's worth noting that this is only a problem on /seriously/ steep
hills
>> (see http://en.wikipedia.org/wiki/Koppenberg).
 But with muddy tracks
>> it's quite easy to run out of traction.  At which point you get off and
>> push...
> 
> My hill is seriously steep. 

How seriously?  Koppenberg is famously difficult for 
/professionals/.  What's the actual gradient?  There should be no 
trouble with traction on a typically surfaced 20% hill, and those 
are very unusual.

> And it's not practical to get out and pull 
> because on that kind of incline the SPD shoes just slip and slip

There shouldn't be any particular trouble walking up a 20% hill in 
a pair of recessed-cleat shoes as long as it isn't an expecially 
slippy road.

> the bike is so heavy that it pulls me over.

It's a tricycle, it can't fall over, and if it can't fall over 
it'll have trouble pulling you with it!

> I have had the trike lose traction on the dirt path that immediately 
> follows or precedes the killer hill. But here it was just a case of too 
> deep muddy goo.

Mud, ice, diesel, wet leaves, drain covers can have you lose 
traction on level ground.  You're never going to resolve all 
traction problems, but that doesn't make bikes/trikes unusable.

Pete.
-- 
Peter Clinch                    Medical Physics IT Officer
Tel 44 1382 660111 ext. 33637   Univ. of Dundee, Ninewells Hospital
Fax 44 1382 640177              Dundee DD1 9SY Scotland UK
net p.j.clinch@[EMAIL PROTECTED]
     http://www.dundee.ac.uk/~pjclinch/