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namagomi
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Check out that.... having done some of this before(not at 55mph) I can tell you the largest issue are stones and sand flying off the tires!
 

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a little math check, (my math and I could be wrong)

electrik said:


Check out that.... having done some of this before(not at 55mph) I can tell you the largest issue are stones and sand flying off the tires!
if he is spinning at 120 RPM. and he is in a 39/11 combo his backwheel spins about 420 revs per minute with a circumference of about 7 feet or 2940 feet per minute and in 60 minutes that is about 33 miles per hour. The shot at about 108 shows the big ring and maybe that makes sense.
Having said that look at the big ring in that old pic,
bigger than a 54 for sure
 

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that's just crazy. I bet it was downhill. Still the guy is

nuts and lucky they didn't pick him up with a shovel. He couldn't see anything in front and just before a major race. Hey is it April 1st?
 
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