sprockets/tubes prudhoe bay trip
Posted: Sun Feb 17, 2008 12:10 pm
I did this trip from Montana in late Aug '06 with all stock cogs and had no
trouble either in muddy or dry(ish) conditions with a set of Gripsters. I
used this same setup on the many jeep passes out of Ouray to Silverton, CO
but the KLR got lugged there! There are no gravel roads that you will need
lower than stock gearing if you stay on the main routes and there is more
nice pavement north of Fairbanks than we thought. Very easy to cruise at 60
mph to Prudhoe from Fairbanks on the gravel, 70+ on paved roads. I did not
camp but had HT panniers and top box full. I covered 5200 miles on the
round trip and wore out the rear tire as well as the chain and rear
sprocket. Used WD40 as a chain lube trying to keep the chain dry and it
allows the muck to sling off rather than stick. That wet sandy/gravely stuff
is hard on it all, buy good quality equipment and prepare well. We found
that the wet spray off the road tended to clog the radiator and presented a
cooling problem for me when the fan relay quit working. The answer here was
at stops, park in the middle of the everpresent mudpuddles and with a 'big
gulp' sized palstic cup throw water into the radiator to wash down the goo.
The cup resided at one end of my HT box, on top of less used gear and kept
the WD40 spray can from getting popped open and spraying the inside of the
box. (How did I know to do that, you ask?) The other thing the cup and
puddles are good for is to wash down your riding pants which will be filthy
from the knees down, provided you have waterproof gear on. One member
carried a sawn off toilet brush to aid this opperation!
It's a great trip, you'll enjoy it.
Don M
Subject: Re: [DSN_KLR650] Sprockets/Tubes
>I believe Fred has 17 inch HD tubes > http://www.angelfire.com/ut/moab/index.html > > rockiedog2 wrote: > Getting ready to try the Prudhoe Bay trip...wondering if I should > go to > a 16T front sprocket(43T rear) since by far the vast majority of miles > will be highway, but with lots of gravel/maybe mud. Considering the > heavy load, and drag of the aluminum panniers, I don't want to overgear > the thing and lug it down. Also don't want to be limited to a higher > than desired minimum speed if it gets really nasty. What would you guys > who have done it recommend? > Also I thought I would run the Bridgestone UHD tubes but the sizes > don't match...will an 18 inch tube work in a 17 inch tire? Which tube > for a 120/70/18 front...110/100/18? or ?