Product details
60-Day Returns · Family Owned Since 1973 · Ships From Wisconsin
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Trek Knock Block 72-Degree Headset Assembly with Display Chip 28.6mm (1-1/8˝)
About This Item
Headset Trek Knock Block 72-Degree Assembly W/Display Chip
Genuine replacement parts
Service and replacement parts specifically for Trek Knock Block technology.
Get your bike back on the trail with the headset parts you need.
Key Features
Trek proprietary headset components compatible with Trek Knock Block models
72-degree headset fits 2021 Slash 29
Includes crown race, bearings, top cover, frame chip & fastener
Frame chip has display tabs to connect Bosch Kiox Mount sold separately
Must be paired with Knock Block stem and Knock Block spacers
Knock Block headset spacers not included
Specifications
Part Number 5252160
Color Black
Size 28.6mm (1-1/8")
Model Year 2026
Material Components Aluminum
Specifications
Brand Trek
Condition New
Type Headset
Bike type Headset
Size 28.6mm (1-1/8")
Colour Black
Frame size 28.6mm (1-1/8")
Manufacturer part number 141-0057000010
UPC 601842505915
Unbeatable Year-Round Bargains
Wheel & Sprocket has been family owned since 1973, with shops across Milwaukee, the Fox Valley, Madison and Chicagoland. Every order is picked and packed by people who ride, and if something is not right a mechanic will answer you — not a script.
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Wheel & Sprocket Outlet · Item 601842505915
Item specifics
| Condition | New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... |
|---|---|
| Color | Black |
| Size | 28.6mm (1-1/8") |
| Type | Headset |
| Sport Activity | Cycling |
| Model Year | 2026 |
| Frame Size | 28.6mm (1-1/8") |
| Department | unisex |
| Bike Type | Headset |
| Brand | Trek |
| Country of Origin | Taiwan (R.O.C.) |
