This is the triple ring crank set and the Shimano M324 combo platform/clip-less pedals are attached to a new sealed bottom bracket (Shimano UN54 68x122mm), later replaced that with a Phil Wood offset 116mm BB for a narrower Q factor. Also added a wire-less Garmin crank/speed sensor to feed data to a bike computer on the handlebars. And a set of original size 27x1-1/4" Schwalbe Marathon touring tires meet the pavement. I run the tires at about 60psi and they are wonderful for riding on the paved bike and gravel levee trails around the San Francisco Bay Trail. The tires track very nice on the loose gravel and are dead smooth riding at 15+MPH over the rough trails, helped no doubt by the supple brazed frame.   (6/11)