FREE WD-40 CHAIN LUBRICANT TRANSMISSION KIT IN STANDARD CONFIGURATION (STEP IDENTICAL TO THE ORIGINAL). Sprocket Teeth: 13 Crown teeth: 50 Oversized Crown (compared to the original): No Crown material: Aluminum Chain Type: 520VX2 Gold G&B X-Ring Chain links: 118 Chain Closure Type: Riv Shipping Shipments relating to your orders will be made exclusively with GLS EXECUTIVE express courier