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Topics - misterflask

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Gear Talk / Pump Maintenance
« on: March 08, 2013, 06:10:11 am »
I have a recurring problem with pump maintenance on my 0-ring sealed pumps (currently w/ road morphG, but also w/ other pumps).  After a year or two of use (mainly being carried around), my pumps lose efficiency or quit working.  They've been thoroughly cleaned and inspected and I can see nothing wrong. After a good clean and lube they get better but never reclaim their new efficiency.  After a recent cleaning, I lubed the pump with some high quality turbine oil, which prevented it from working at all.  My conclusion was that the o-ring has to generate enough friction to seat itself.  I replaced the turbine oil with some sticky chainsaw bar-lube, which made the pump work, but not at its new efficiency. 

Does anyone have a secret for keeping pumps at top efficiency over the long term?

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General Discussion / Tales of Calamity and Woe
« on: October 31, 2012, 03:00:11 am »
On recent TA I cracked a frame and broke a hub flange.  Both events happened at fortuitous locations and together resulted in only a day-and-a-half of downtime.  So I'm sure many or most could better my tale and I thought a thread to share tales of disastrous tour events might be enlightening.

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General Discussion / Wind Rose Data for planning
« on: January 24, 2012, 05:31:46 am »
I stumbled on a site with wind rose data and thought I'd share.  You can download wind roses from http://www.wcc.nrcs.usda.gov/ftpref/downloads/climate/windrose/ .  An explanation of the data is at http://www.wcc.nrcs.usda.gov/climate/windrose.html .  If you're not familiar with wind roses, they show a number of colored rays emanating from the center.  The length of the ray shows the likelihood that the wind will blow FROM that direction.  The colors  of the ray show the likely wind intensity when coming from said direction.  For my planned W-E transit of Kansas in September, I see that I'm fairly likely to face a moderate headwind, very likely to ride in stiff crosswinds, and will probably never see a tailwind.  From my initial perusal of data along the TA, I would reverse the direction of my trip to E-W were there not logistical considerations.  I can't change the wind, but I can at least get psyched for it.  After a tour or two I realized that if I didn't like headwinds and hills I would need to find another hobby. 

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Gear Talk / Cassette Life
« on: January 11, 2012, 05:10:38 am »
To push down to that elusive 20inch gear, I want to put a 11-34 cassette on an 8spd bike for a TA trip.  I really don't like alpine gearing with its 26-34 jump, but it is available in nickel plated cassettes.  The spread gearing is only available on a HG31 low end mtb cassette.  Anybody have mileage numbers or anecdotal evidence of cassette life in the various Shimano lines?  The cassette really only needs to last for the one crossing.  FYI, I use white lightening wax lubes.

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