🚀 go-pugleaf

>In article <alanf.720229445@bruce.cs.monash.edu.au>
alanf@cs.monash.edu.au (Alan Grant Finlay) is concerned:
>>Every morning I have to negotiate a speed hump at the bottom of a hill.
>>... My question is: will this damage my bike, in particular
>>the headset?  My body is quite able to take the hump at speed, out
>>of the saddle with my weight shifting back and forth ...

In article <1992Nov3.235155.10636@news2.cis.umn.edu>
kimmel@staff.tc.umn.edu (Eric Kimmel) advises: 

>... If it's a street bike with the tires pumped up to 110 psi, then
>it probably will hurt the bike.  ...

I think not necessarily.  I ride a road bike(s, actually) and
routinely deal with such obsticales by unloading the bike (see
above).  This includes both a touring bike Schwinn Voyageur) and a
road bike (Bianchi Brava).  I routinely pump the Conti tires on these
bikes to over 120 psi.

Unloading the bike as Alan and I do allows the bike to pivot around
the bottom bracket spindle.  This reduces the shock to both the back
and the front wheels, axles, etc.  On the one or two occasions that I
have forgotten to unload when encountering a recurring obsticale,
I envariable snake-bite the front tube and loosen or break spokes on
the rear.  So, I know that unloading does work in many situations.

Jumping the bike will induce a little more shock to the system.  It
should be reserved for significant obsticales like curbs, logs,
large rocks, narrow ravines, etc.
-- 
sam henry <shenry@rice.edu>
Wanna ride?