Don Pearce wrote:

On Thu, 06 Sep 2007 16:27:41 -0700, Andre Jute
wrote:

Techieporn for you.

My Trek Navigator L700 "Smover"
Bicycle with Automatic Gearchange and Electronic Adaptive Suspension
delivered by Shimano Di2 Cyber Nexus Groupset

a photo essay by André Jute

http://members.lycos.co.uk/fiultra/B...%20Smover.html

My Trek is the 3400 - nice sensible road bike. Looks very similar to
that, but without the chain guard. Doesn't have all that dodgy brake
stuff, either. A reasonably heavy stop (say from 20mph in 5 seconds)
only needs to dissipate 3kJ at 600W, which is no problem at all to
dissipate in a pair of wheel rims.

d

There is a hill here about a km long, and about 7% slope,
and when descending it one must use the brakes all the way down for
safety reasons.
But at the bottom the rims of my road bike have not heated, not even on
a hot day.

I have 3 bikes, all with reliable old steel frames and they all weigh
about 11kg, but I'm 78Kg now, and I have no trouble riding 90k across
town and back....
And during this winter I only rode the bike which has ONE gear, a 44t
front cog, 18t rear cog,
giving a 68inch gear. I was using 72" for awhile, but that proved too
hard into headwinds when riding
up some hills. I am rebuilding one bike with new fangled index gearing
which will allow me the luxury of riding up some very steep hills here
again.

Patrick Turner.



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Pearce Consulting
http://www.pearce.uk.com