john
Ever since shimano came out with their large pulley inexpensive derailluers
(altus,alivio, etc), it is what I use for machine that is going to see a
lot of water. something i wrote in 2009.
http://bikeeng.blogspot.com/2009/05/large-pulley.html. I doubt these
derailluers though, are "accurate" enough to use with say a 10 speed
system. 9-speed seems to work OK.
for Bot brackets I am still square taper. Then can run phil wood spindles.
And with a triple my Q-factor is 142 mm (yes a triple). or 135mm or
less with a double. Beat that big stiff diameter bbs ! Seriously I
would go to a larger dia bb, but i can't justify the price, the decreased
cornering clearance, worse aerodynamics, poor chainline, reduced brg
durability, all just for a stiffer bb. Although I have seen comments that
say the increased q-factor engages different leg mucsles, ie "skating"
muscles? and for that reason may be advantageous. I think that depends on
what one is trained up in...
Not quite sure what some designers of front derailluers/cranks/ bbs are
thinking/doing (well obviously what they think is important and what they
are trying to optimize is obviously different from what I think is
important, hence why I am still on the "tunable" square taper system :) ) ,
but with some cranks, I have been able to run two chainrings in the place
of the outside big chainring. The front derailluer outside plate has to be
flat, and a little work with a file here and there also occurs..
On Sat, Nov 10, 2012 at 9:11 PM, Brian Johnson wrote:
> You basically indicated the problem: power washing. Don't ever power wash
> your bike unless you're a fully sponsored pro in Belgium. Even a moderate
> jet from a garden hose can wreak havoc on "sealed" bearings. (I learned
> this from experience.) The spray from a pump sprayer is as strong as you
> should use. Use a brush to remove mud from your bike.
>
> > Anyone see this before? On my first bike with SRAM parts. I have
> cleaned with a hose and my pump sprayer never a problem. Raced Canby last
> week and had it power washed. Now both pulleys are completely seized.
>
> Brian Johnson, Graphic Designer
> Muller Design Studio
> http://mullerdesignstudio.com
>
> http://www.facebook.com/mullerdesign
>
> Sent from my iPhone
> _______________________________________________
> OBRA mailing list
> obra@list.obra.org
> http://list.obra.org/mailman/listinfo/obra
> Unsubscribe: obra-unsubscribe@list.obra.org
>