YBEKI 7075-T651 Aircraft-Grade Chainring Bolts Kit - CNC Machined for Road/MTB (Single & Double Chainring), Includes 4.9mm & 6.4mm Bolts + Heat-Treated Mounting Wrench, Anodized Anti-Corrosion

YBEKI 7075-T651 Aircraft-Grade Chainring Bolts Kit - CNC Machined for Road/MTB (Single & Double Chainring), Includes 4.9mm & 6.4mm Bolts + Heat-Treated Mounting Wrench, Anodized Anti-Corrosion

• Military-Grade Material: 7075-T651 Aluminum Alloy (Aerospace Standard), 30% Harder Than Steel with CNC Laser Precision Machining, Zinc-Magnesium Alloy Matrix for Extreme Load Resistance, Heat-Treated Tool Steel Wrench (Included)
• Premium Anodized Finish: Triple-Layer Anodizing for Permanent Color Retention, Anti-Galvanic Corrosion Design (Compatible with All Chainring Materials), 5-Micron Surface Polish for Smooth Thread Engagement, 5 Color Options: Matte Black / Racing Red / Electric Blue/Grape Purple/Snowflake Silver
• Precision Sizing Guide: 6.4mm Bolts for Double Chainring Applications (8-10 Speed), 4.9mm Bolts for Single Chainring Systems (1X/2X Drivetrains), Pro Tip: Measure Existing Bolts with Calipers Before Ordering
• Professional Installation: Dual-Tool System with Fixed Wrench and 5mm Allen Key, Torque Spec: 12-15Nm (Anti-Loosening Thread Design), Pre-Apply Grease on Threads for Optimal Performance
• Quality Support: 24/7 Expert Support with US-based mechanics answering questions within 24 hours, Fast Replacement for defective parts within 48 hours