Used Stronglight 100 crank arms with the super versatile 86 BCD pattern and a set of hard to find triple chainring bolts with spacers. These cranks can be run as a single, double or triple and with such a small BCD for all of the rings from 53 (plus!) down to 28 teeth they can be set up for any use. 170 mm arms, 9/16" pedal thread, square taper. More 86 BCD stuff in my other items too!