Trek KnockBlock 58-degree Headset Assembly
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Trek KnockBlock 58-degree Headset Assembly

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Trek KnockBlock 58-degree Headset Assembly

Regular price $125.99

Trek KnockBlock 58-degree Headset Assembly

Trek proprietary headset components compatible with Trek Knock Block models.

Genuine Trek replacement parts

Service and replacement parts specifically for Trek Knock Block Technology

Product details

  • Trek proprietary headset components compatible with Trek KnockBlock models
  • Includes crown race, bearings, top cover, frame chip and fastener
  • KnockBlock headset spacers not included
  • Must be paired with KnockBlock stem and KnockBlock spacers
  • Compatible with all Trek KnockBlock models

Specifications

Manufacturer part # IS-2-HBS/42/ACB
Steerer outer diameter 28.6mm (1-1/8") / 38.1mm (1-1/2")
Crown race inner diameter 39.8 mm
Cup Insertion OD Integrated
Stack height 8.7 mm
Bearing type Sealed
Headset type upper Unthreaded fully integrated
Headset type lower Fully integrated
Material Aluminium

What customers say

Product Reviews

“Great communication and fast delivery. Whole purchase experience was very smooth and product is great. Cruzee bike is great quality and was super easy to set up and get moving.”

Chelsea

“Love the Cruzee! Super light and durable. Easy to put together and adjust. Lowest seat position fits our short 2 year old. Fast delivery.”

Josh

“This is the second Cruzee we’ve bought from Cycle Nation. It’s such a great wee bike. Gave the first one to our daughter for her second birthday. Two weeks later she was racing around a pump track. It’s so easy for her to ride. She was cornering and coasting really quickly. We’ve just got one for our 18 month old. Once again Cycle Nation has the best price and service. Arrived very fast. I would definitely recommend the Cruzee as a first bike. It’s very intuitive for kids to ride. And it is so light, which is helpful when they are young and may need to jump into the buggy or be carried.”

Bridget