Mongo rolled up on a couple of dudes today on the back half of a very cold 35 miles. What struck me immediately, as I pulled along side them, was that they looked like Penn & Teller... on S-Works Tarmacs.
Fat and huge, and short and tiny, were both wearing Caisse d'Epargne kits and riding red and black Specialized bikes...it truly was an odd sight. Anyway, I was drawn specifically to Teller's bike, because he happened to be rockin' Rotor cranks.
If your not familiar with Rotors, the technology is very similar to Biopace, except it costs five times as much, and instead of oval chainrings, you get tangential crank arms. Sweet, huh?
I won't bore you with the details of the science behind Rotor cranks and Biopace chainrings other than to say this...If there was one shred of provable evidence that either technology was even slightly better or more efficient through the entire range of gears, then every professional cyclist would use them. (R.I.P. Bobby Julich's Biopace chainrings...The last Thylacine is dead!)
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