Best of luck on those events, looks like you chose a good bicycle for your rides there. I read the report on the last two Dirty Kanza races in RBA, sounds like a real eye poker of a race, to me. Neil Shirley, the RBA assistant editor, entered, but he sheared off his RD, early in the event, and it took him nearly the time limit to finish in, one gear. But for a spare RD hnager....
Bill
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Semper Fi, USMC, 1975-1977
I Can Do All Things Through Him, Who Gives Me Strength. Philippians 4:13