Nukeproof Horizon Top Headset Cup
Nukeproof Horizon Top Headset Cup
Nukeproof Horizon Top Headset Cup
Nukeproof Horizon Top Headset Cup
Nukeproof Horizon Top Headset Cup
Nukeproof Horizon Top Headset Cup

Nukeproof Horizon Top Headset Cup

SKU: 101786756

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Nukeproof Horizon Top 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 so you can be rest assured your purchase will be a good one.

These headsets have been revised, improved and expanded for optimum fit, sealing and performance as well as compatibility with a wide range of fork and frame standards. Featuring sealed angular contact bearings, split alloy crown races and upper and lower bearing cups CNC-machined from proprietary aluminium, the headset offers the optimum balance of light weight, strength and durability for performance across all riding disciplines.

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

A top cap, star nut and bolt is also included



Key Features

  • Headset Type: Specific Top Cup
  • Bearings: Replaceable, angular contact type
  • Graphics: Laser-etched
  • Finish: Hard Anodised
  • Options: Internal and external
  • Includes: Top cap and bolt supplied
Model Headtube Internal Diameter Steerer
Black EX34-28.6 - T1 1.1/8" Top Cap Included 34mm 1 1/8"
Black ZS44-28.6 - T2 1.1/8" Top Cap Included 44mm 1 1/8"
Black ZS49-28.6 - T3 1.1/8" Top Cap Included 49mm 1 1/8"


California Proposition 65 Warning

This product can expose you to chemicals including (Cadmium, Phthalates, Bisphenol, Nickel (Metallic), di(2-ethylhexyl)phthalate "DEHP"), which is known to the State of California to cause cancer and/or cause birth defects or other reproductive harm. For more information, go to

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