Genuine Hope integral headset cup.
Sizing
Cup 2/B = ZS44/28.6, ZS44/30
- 44mm upper headtube diameter
- 28.6mm stem clamp diameter for 1 1/8″ steerer tubes
- 44mm lower headtube diameter
- 30mm crown race seat diameter for 1 1/8″ steerer tubes
Cup 4/D = ZS49/28.6, ZS49/30
- 49mm upper headtube diameter
- 28.6mm stem clamp diameter for 1 1/8″ steerer tubes
- 49mm lower headtube diameter
- 30mm crown race seat diameter for 1 1/8″ steerer tubes
Cup 5/E = ZS56/38.1, ZS56/40
- 56mm upper headtube diameter
- 38.1mm stem clamp diameter for 1.5″ steerer tubes
- 56mm lower headtube diameter
- 40mm crown race seat diameter for 1 1/8″ to 1.5″ tapered steerer tubes
ZS = Zero stack (Integral)



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