Did you know that you could shop on our www.chainreactioncycles.com/us/en website?

    • Nukeproof Horizon Bottom Headset Cup

  • Nukeproof Horizon Bottom Headset Cup

    Nukeproof have launched a range of headset’s which use the titanium coated race bearings with stainless steel balls. The titanium coating is applied using “Physical Vapour Deposition” which means that the material is vapourised in a vacuum environment and then deposited on the bearing races as a composition coating. This process allows the structure, density and stoichiometry of the coating to be controlled allowing the exact attributes in our design brief to be achieved. The coating is 0.000118” thick and has a molecular bond to the bearing races so it won’t wear off or corrode. The bearing is ABEC 5 certified which means that it has passed tests which include ID and OD tolerance’s, roundness of ball, trueness of faces & surfaces aswell as noise testing at high RPM making it the perfect bearing for use in a headset. 

    These bearings have been designed for use in the harshest weathers and have went through various tests by the Nukeproof team during development so they are 100% confident in their performance. To back this up Nukeproof are offering a 5 year warranty on these headsets so you can be reassured your purchase will be a good one. 

    All models feature a super tough black hard anodised finish, with laser-etched graphics.


    • Headset Type: Specific Bottom Cup
    • Bearings: Replaceable, angular contact type
    • Graphics: Laser-etched
    • Crown Race: Split Alloy
    • Finish: Hard Anodised
    • Options: Internal and external
    • Includes: Crown race, top cap and bolt supplied (Reducer crown race for 1.5"" 1 1/8"sold separately)
    ModelHeadtube Internal DiameterSteerer
    Black 1.1/8" EX34-30 - B134mm1 1/8"
    Black 1.1/8" EX44-30 - B544mm1 1/8"
    Black 1.5" EX49-40 - B749mm1.5"
    Black 1.5" ZS56-40 - B856mm1.5"


    Buy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.


    • Colour: Black
    • Option: EX44-40 - B5, EX49-40 - B7, ZS56-40 - B8, EX34-30 - B1
    • Steerer Diameter: 1.5", 1.1/8"
    • Headset Type: Conventional, Semi-Integrated Tapered
  • Save 34%
    RRP 353.49NOK
    234.99 NOK 234.99
    Select Colour
    Select Option
    EX34-30 - B1
    EX44-40 - B5
    EX49-40 - B7
    ZS56-40 - B8
    Select Steerer Diameter
    Email me when in stock

    Order in the next


    and choose Next Day Delivery at the checkout

  • Need help? Have a question?

    Get in contact with us

    Headsets Buying Guide

    We’ve got everything you need to know in our buying guide...

Also Consider

265.49  NOK
SAVE 25%
RRP 353.49  NOK
Select Option

Please select an option

Select Option

Please select an option

Select Option

Please select an option

61.49  NOK
SAVE 13%
RRP 70.99  NOK
Select Option

Please select an option