These are the latest version of the cranks that changed everything.
The original tubular chromoly cranks! 100% heat-treated tubular chromoly, dual pinch bolts, wrapped and welded at the pedal bosses. Set includes 19mm x 6-tooth heat-treated chromoly, spindle, spindle bolts, and sprocket bolt. RH 11.47 oz (325g) / LH 10.79oz (306g). BB set sold separately. 32.8 oz / 928g.