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Foot closer to the pedal spindle.(5 posts)

Foot closer to the pedal spindle.hayaku
Jun 15, 2002 10:45 PM
This is supposed to be more efficient right? I accept it but can anyone tell me why... Thanks.
Less material in between dissipating pedal energy as heat.Leisure
Jun 15, 2002 11:52 PM
It's not something I worry about; I'd rather have a cushier shoe. It's not the final measurement either, as you also have too look at the amount of each individual material in between. And surface area. And blah blah blah.
Lowers your center of gravity? nmSpoke Wrench
Jun 16, 2002 1:04 AM
re: Foot closer to the pedal spindle.rufus
Jun 16, 2002 9:19 AM
less chance of power transmission being lost by foot rocking and other various small idiosyncracies of foot movement within the shoe, and between shoe and pedal.
Right - here's a mental imageKerry
Jun 16, 2002 4:51 PM
Think about putting some thick wood blocks on your pedals and trying to ride. Though you would be pushing down with the same force as you would in normal pedaling, you'd run the risk of your foot tipping forward or backward and you tried to push down. Clearly this would be a problem if the blocks were 20"/50cm thick - you'd be lucky to be able to pedal the bike. Alternatively, if your shoe were right on the pedal axle, this would not be a problem at all. Somewhere in between, the problem would be less or more. The argument (originally proposed by Time) is that you lose some efficiency the farther your foot is from the axle. While it's easy to understand the theory, it's hard to support in practice - Look would be long since out of business as their pedals put the foot farther away from the axle than Time, Speedplay, or Campy. The suggestion of lower center of gravity (never offered as a benefit by Time or Speedplay) is probably more meaningful in the real world, and not very meaningful at that.