The Echo TR ISIS cranks are forged from 6061 T6 Aluminum making them strong and stiff. Large slots machined into the front of the cranks keep the weight respectable. Standard 1.37"x24tpi threads are compatible with both freewheels and fixed sprockets. The threads are long enough to accomodate both a bashring and a freewheel but a spacer is supplied in case you want to run them without a bashring. It fits all ISIS bottom brackets as well. Crank offset from the end of the threads at the base of the crank to the inside tip of the crank by the pedal threads is 35mm (this can be useful to know if you're having problems with your cranks clearing your frame or brake cylinders). Available in 160mm and 170mm lengths.
Please Note: Always remember to grease your pedal threads before installation.
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