This special crank is predestinated for testing the influence of the output
power of the cyclist in depend of the crank length. The crank length can
be changed from 150mm to 190 mm in 2.5mm steps. The time of changing the
length takes 30 seconds and you need only a 5mm allen key. This crank is
available for the new Shimano bottom bracket set Dura Ace or Ultegra with
round axle. The shifting part of the crank is made of stainless steel,
the fixed part of 7075 aluminium. This crank fits into all Powermeters
and is standardly mounted on the SRM Ergometer. |
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