SKU: 59709557041

Wolf Tooth Headset Upper Knock Block - 28.6, 8mm, Black

Sale price$56.03 Regular price$62.26
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

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Description

Wolf Tooth Headset Upper Knock Block - 28.6, 8mm, BlackWolf Tooth Precision Headsets for Trek Knock Block are machined in the USA out of aircraft grade aluminum with superior sealing for protection against the elements. Available in a variety of colors to add some style to your bike. These upper headsets are for Trek frames with molded in internal bearing cups. Designed to work with Trek's Knock Block system The top cap on these headsets have unique raised features that key to Knock Block compatible stems

Wolf Tooth Precision Headsets for Trek Knock Block are machined in the USA out of aircraft grade aluminum with superior sealing for protection against the elements. Available in a variety of colors to add some style to your bike. These upper headsets are for Trek frames with molded-in internal bearing cups.
  • Designed to work with Trek's Knock Block system
  • The top cap on these headsets have unique raised features that key to Knock Block compatible stems (made by Bontrager
  • If spacers are needed, you will need to use special Knock Block compatible spacers with notch features
  • This product is the upper headset only
  • Lower headsets on bikes with Knock Block do not have any unique features. They are usually IS headsets which are available separately

Product Specifics

  • Bearing Type: Cartridge
  • Color: Black
  • keyword search: Trek Knock Block
  • Upper Stack Height: 8
  • S.H.I.S. Stem Clamp Diameter: 28.6 Threadless



Today's Stock Status





UPC: 810006802689
EAN: Not available
Manufacturer Part Number: IS41U-8MM-KNOCK-BLK
HD0284
163423-Q0-L


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 59709557041

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Yociris ferreira
Lowell, US
★★★★★ 5
Hydrating sunscreen
This is a great sunscreen for dry sensitive skin, even combination skin specifically if you’re using acne products that can dry out your skin. My dermatologist recommended this to me due to my rosacea and dry flaky skin. It helped me maintain my skin moisturize during the day, also adds a healthy glow to the skin. It has a liquid consistency which I love cause it makes it so much easier to blend and absorbs faster into the skin. I wouldn’t recommend so much for oily skin though, it can make you look greasy really quick!!
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Reviewed in the United States on December 30, 2025
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Sue Anne G
San Leandro, US
★★★★★ 5
Hydrated and protected
Style: SPF 50, Size: 5 Fl Oz (Pack of 1)
I loved this spf, as someone who’s had skin cancer multiple times now, protecting my skin is 100% a nonnegotiable (darn 80s and baby oil) this keeps me hydrated and protected at the same time! Easy, light cream like application without a weird white cast.
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Reviewed in the United States on May 16, 2026
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Angelica Chaviel
Lexington, US
★★★★★ 5
Eucerin SPF 50
Style: SPF 50, Size: 5 Fl Oz (Pack of 1), Style: SPF 50, Size: 5 Fl Oz (Pack of 1)
The Eucerin SPF 50 sunscreen is amazing 💛 It keeps my skin hydrated without feeling heavy and leaves my face soft and protected all day. I love that it doesn’t leave a white cast or sticky feeling. Perfect for everyday use 👌
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Reviewed in the United States on May 20, 2026
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Kenny
Houston, US
★★★★★ 5
Good
Style: SPF 50, Size: 5 Fl Oz (Pack of 1)
I love this sunscreen. This is the only sunscreen that my skin likes. It doesn’t leave a white cast and gives a really nice glowy look.
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Reviewed in the United States on May 10, 2026
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Prudence Julien
Dallas, US
★★★★★ 4
Good coverage
Style: SPF 50, Size: 5 Fl Oz (Pack of 1)
Great sunscreen and when applied liberally my face doesn't get burnt. That has always been a problem with my skin all my life so I'm happy for that sort of coverage. The formula is a little greasy and there is a white caste but I use it to my advantage as it dims the red spots on my face and brightens my under eye. I try not to leave the house without applying.
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Reviewed in the United States on September 26, 2025

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