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

Dave Larrington wrote:
> In news:68rrd2F2u162aU1@[EMAIL PROTECTED]
> Peter Clinch <p.j.clinch@[EMAIL PROTECTED]
> tweaked the Babbage-Engine to
tell 
> us:
>> 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.
> 
> Koppenberg is about 20%; the problem is that there is sand between the 
> cobblestones, so if the rear wheel gets into a longitudinal gap, you are

> stuffed.  I've done 25% a few times, most notably Bushcombe Lane:

Longstaff "double drive" sounds helpful here.

    BugBear