Quick Summary
The sourcing map 1 1/4 inch Bicycle Headset Stem Top Cap is a blue aluminium alloy headset cover for a bicycle stem. It is described as a top cap for mountain bikes and road bikes, with an M6 stainless steel bolt included for fitting.
The stated outer diameter is 1 1/4″ (31.8 mm), so the main buying check is whether that size matches the headset stem on the bike you plan to use it with.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Bicycle headset stem top cap. This is the cover piece for the headset area. |
| Size | 1 1/4″ outer diameter (31.8 mm). Check this against the headset stem size before buying. |
| Material | Aluminium alloy. This is the stated material for the cap. |
| Colour | Blue. This matters if you want the cap to match other bike parts. |
| Included bolt | M6 stainless steel bolt. Confirm this fits the intended installation setup. |
What to Compare Before Buying
- Headset size: The cap is stated as 1 1/4″ (31.8 mm). Compare that with your bike’s headset stem size.
- Bike setup: It is described for mountain bikes and road bikes, so check that your stem and headset arrangement match the part.
- Included fixing: An M6 stainless steel bolt is named, so confirm that this is the fixing you need.
- Finish and colour: The cap is blue, which matters if appearance is part of the choice.
Before You Decide
Confirm the 1 1/4″ (31.8 mm) size before choosing an offer. Make sure the headset stem and bolt setup match your bike, and follow the fitting instructions for the exact part.
