Heras’s climbing bike. Note the oversized 1-3/8′ lower headset bearing, with the 1-1/8′ upper head cup. The u …
Heras's climbing bike. Note the oversized 1-3/8' lower headset bearing, with the 1-1/8' upper head cup. The upper cup has wrench flats (Shimano doesn't make threadless headsets), but the threads have been bored out for the threadless steering tube.
Don't miss a moment from Paris-Roubaix and Unbound Gravel, to the Giro d’Italia, Tour de France, Vuelta a España, and everything in between when you join Outside+.
Heras’s climbing bike. Note the oversized 1-3/8′ lower headset bearing, with the 1-1/8′ upper head cup. The upper cup has wrench flats (Shimano doesn’t make threadless headsets), but the threads have been bored out for the threadless steering tube. | Photo: L. Zinn
Slideshow: Click photo to view next image
Heras’s climbing bike. Note the oversized 1-3/8′ lower headset bearing, with the 1-1/8′ upper head cup. The upper cup has wrench flats (Shimano doesn’t make threadless headsets), but the threads have been bored out for the threadless steering tube. | Photo: L. Zinn
