RISK Parts Carbon Fiber Headset Cap for Mountain and Road Bikes Stem Cap for OD2 Forks Titanium Alloy Screws Bolts RA112
RISK RA112 carbon headset top cap
Descriptions
The RISK RA112 Carbon Fiber Headset Top Cap Set is designed for lightweight bike stem and headset upgrades. Made from CNC-machined carbon fiber and paired with a TC4 titanium alloy M6 bolt, this set offers a clean premium look while reducing weight compared with standard metal top caps.
Available in two versions, the RA112 fits both common 28.6mm fork steerer tubes and non-standard OD2 31.8mm fork steerer tubes. The OD2 version is especially suitable for compatible Giant Contact / Contact SL style stems and can create a clean hidden-style appearance after installation.
Each set includes 1 carbon fiber headset top cap and 1 matching TC4 titanium bolt. It is ideal for road bikes, mountain bikes, gravel bikes, and performance bicycles using compatible fork steerer sizes.
This product includes the headset top cap and matching bolt only. Stem and other parts shown in images are for display purposes only.
Key Features
- Brand: RISK
- Model: RA112
- Product Name: Carbon Fiber Headset Top Cap Set
- Material: Carbon fiber top cap + TC4 titanium alloy bolt
- Top Cap Process: CNC-machined carbon fiber
- Bolt Specification: M6 × 30mm titanium bolt
- Available Sizes:
- 28.6mm — for standard fork steerer outer diameter 28.6mm
- OD2 31.8mm — for non-standard OD2 fork steerer outer diameter 31.8mm
- Set Weight: Approx. 10.5g per bag
- Reference Weight: 28.6mm cap only approx. 2.42g; 28.6mm cap + titanium bolt approx. 5.77g
- Package: RISK branded bag
- Package Size: Approx. 10 × 6 × 1.5cm
- Application: Stem top cap / headset compression cap upgrade
- Suitable For: MTB, road bikes, gravel bikes, and bikes with compatible fork steerer sizes
