The Cane Creek Hellbender 70 - IS42/28.6|IS52/40 is a headset that serves as a bridge between the 40-series and 110-series headsets. It retains all the design characteristics, sealing element, and Hellbender bearing of a 110-series headset, while being priced more closely to a 40-series.This headset is made from 6061 T-6 aluminium, ensuring durability and strength. It features an alloy dual-seal crown race and premium Hellbender bearings with low-friction seals. The internal parts of the headset are cross-compatible across the 10, 40, and 110-series, providing convenience for users.The upper stack measures 9mm (Short) and the lower stack measures 1mm. The weight of the headset is to be confirmed. It comes with a warranty of 1 year (excluding bearings).The Cane Creek Hellbender 70 - IS42/28.6|IS52/40 headset is an excellent choice for cyclists who value quality and affordability.