CNC Aluminum 9–13mm Motorcycle Engine Bolt Topper Caps – 10 Pack

OVERVIEW

These CNC aluminum bolt topper caps provide a clean, finished look for exposed engine and chassis bolts on a wide range of motorcycles. Designed for easy installation and a secure fit, they help protect bolt heads while enhancing overall appearance.

KEY FEATURES

• CNC-machined aluminum construction for durability and precision fit.
• Internal spring steel retention clip resists vibration and thermal cycling to keep caps securely in place.
• Simple, tool-assisted installation using included set screws.
• Black & white finish to complement a variety of motorcycle styles.
• Universal application for motorcycles that match the inner hole sizing.

SIZES & COMPATIBILITY

• Outer diameter 15 mm, inner diameter 9 mm – fits approx. 7.5–10 mm bolts.
• Outer diameter 18 mm, inner diameter 11.5 mm – fits approx. 9–12 mm bolts.
• Outer diameter 21.5 mm, inner diameter 13 mm – fits approx. 11–14.6 mm bolts.
• Suitable for many motorcycle brands and models when the bolt size and inner hole size are correctly matched.

Please measure your existing bolt heads and ensure the inner diameter and fitment range are correct for your application before purchase.

MATERIAL & FINISH

• Material: CNC-machined aluminum.
• Color: Black & white.
• Condition: 100% brand new.

PACKAGE CONTENTS

• 10 x CNC aluminum bolt topper caps.

Note: This is a universal-style product. No specific vehicle fitment is provided by the manufacturer. Always verify bolt dimensions on your motorcycle before installation.