RISK RA134 Aluminum Alloy Bicycle Stem Cap — CNC Headset Top Cover for 28.6mm (1-1/8″) Fork Steerer

Add a touch of personality to your bike with the RISK RA134 Aluminum Alloy Stem Cap. Precision CNC-machined from a single aluminum billet and anodized in vibrant colors, this lightweight headset top cap replaces your stock plastic or steel cap and secures your 28.6mm (1-1/8″) fork steerer tube. Choose from 4 unique patterns — Cyclone, Clock, Star Spike, and Five Star — each available in 4 colors (Red, Black, Blue, Green). Includes a 304 stainless steel bolt for easy installation.

Key Advantages

• CNC machined from solid aluminum — smooth, precise surface with no tool marks
• Anodized finish — durable, scratch-resistant coloring that won’t fade
• Laser-engraved RISK logo — clean, permanent branding
• Ultra-lightweight — only ~9.2g per cap
• 4 patterns × 4 colors — 16 variations to match your bike’s style
• Includes 304 stainless steel bolt — corrosion-resistant, ready to install
• Fits standard 28.6mm (1-1/8″) fork steerer tubes

Suitable For

• Mountain bikes, road bikes, fixed gear, and BMX with 28.6mm (1-1/8″) threadless forks
• Riders looking to customize their bike’s appearance
• Replacing worn or damaged stock headset caps
• Bike builders and enthusiasts who want color-coordinated components

Notes

• Confirm your fork steerer tube diameter is 28.6mm (1-1/8″) before purchase
• Do not over-tighten the bolt — tighten gradually and evenly to avoid damaging the cap or steerer tube
• This product includes 1 stem cap + 1 stainless steel bolt only; stem and fork shown in photos are for demonstration
• Anodized colors may vary slightly from screen to physical product

Product Details