Bicycle Headset Expander Plug Bike - Tensso Carbon Fork Expansion Fasteners
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- Carbon-Safe Compression: Protects fragile carbon steerers by spreading preload evenly, avoiding star-nut damage or crushing. Ideal for carbon forks and suspension forks that need a non-marring, serviceable solution.
- 28.6 mm Universal Fit: Designed for 1-1/8" (28.6 mm) steerers, delivering a snug, rattle-free interface for road, for MTB, for BMX, for gravel, and for folding bikes - ensuring your fork and stem stay firmly connected.
- Lightweight Durability: Aluminum-alloy body with a stainless-steel bolt offers high strength, low weight, and corrosion resistance - built for daily rides and bad weather without adding front-end heft.
- Solid Front-End Stability: Compression-plug design preloads the headset securely to eliminate play and creaks, improving steering precision and confidence on rough roads and trails.
- Complimentary Wrench Included: Comes with a 6mm hex wrench at no additional cost, making installation quicker and more convenient. Riders don’t need to search for tools - simply use the included wrench to tighten the compression plug securely.
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Estimated shipping
Select a product to estimate shipping.Secure your ride with the Tensso Carbon Fork Expander Plug. Built from aluminum alloy with a stainless steel bolt, it protects carbon steerers, eliminates play, and ensures stable steering. Universal 28.6 mm fit, lightweight at 37 g, and includes a 6 mm hex wrench.
Product Specifications
Road cyclists – Stable steering for long-distance rides.
Mountain bikers – Secure headset on rocky, technical trails.
BMX riders – Reliable front-end for tricks and jumps.
Gravel riders – Smooth control on mixed terrain roads.
Folding bike commuters – Durable setup for daily city use.
Professional cyclists – Precise preload for performance tuning.
DIY mechanics – Quick install with included hex wrench.
Bike shops – Universal fit for upgrades and repairs.
Weekend riders – Comfort and reliability for casual rides.
Weight-conscious cyclists – Lightweight, corrosion-resistant upgrade.
Will this expander plug fit my bike fork?
Yes. It is designed for forks with a 28.6 mm (1-1/8 inch) steerer tube. The expansion range covers 22.2–25.4 mm, making it compatible with most carbon fiber forks and mountain suspension forks.
Is this product safe to use with carbon forks?
Absolutely. The expander plug is specifically engineered to protect carbon steerers. It distributes compression evenly, avoiding the risk of crushing or damaging the fork that can happen with traditional star nuts.
Can I use this plug on bikes other than road bikes?
Yes. It works with a wide range of bicycles, including road, MTB, BMX, gravel, and folding bikes, as long as the fork steerer diameter is 28.6 mm.
How does this improve my bike’s performance?
By securing the headset preload, it eliminates play and creaks in the steering system. This results in smoother handling, improved steering precision, and more confidence on rough roads or trails.
Is it resistant to rust and weather?
Yes. The expander uses a 304 stainless steel screw combined with a 6061 aluminum alloy body, providing excellent corrosion resistance for daily rides and harsh weather conditions.
Product details
| Main Specification | |
|---|---|
| Manufacturer | TENSSO |
| Unit Count | 1 Count |
| Exterior Finish | Silver |
| Metal Type | Aluminum |
| Head Style | Hex |
| Manufacturer Grade | Heavy-Duty |
| Thread Coverage | Fully Threaded |
| Outside Diameter | 28.6 millimeters |
| Brand | TENSSO |
| Head Type | Hex |
| Fastener Type | Expansion Bolt |
| Item Diameter | 1.1 inches |
| Number of Pieces | 1 |
| Fastener Size | 6mm |
| Thread Size | M6 X 1 |
| Material | Aluminum |
| Colour | Silver |
| Thread Type | Hex |
| Item Weight | 37 g |
| Product information | |
| Number of Packs | 1 |
| Set Name | Bicycle Headset Expander Plug |
| Technical Details | |
| Part Number | TS1501 |
| Model | TS1501 |
| Material Type | Aluminum |
| Number Of Items | 1 |
| Thread Style | Right Hand |
| Compatible groove diameter | 28.6 millimeters |
| Item Hardness | Rockwell B70 |
| Set Screw Thread Type | Hex Head Bolt Thread Type |
| Style | |
| Finish Types | Textured |
| Measurements | |
| Item Dimensions | 1.77 x 0.87 x 0.87 inches |
| Others | |
| Item Highlight | for MTB or Cycling Headsets Screw Spacer Espander Stem Cap Bolt Crown Race Setting Tool for Road or for BMX or for Gravel Bikes |
| Product Type | Expansion Bolts |
| Size Name | 1.1 In |
| Screw Head Style | Hex |