5Dev | 8 Bolt Spider Shimano Dura Ace Chainrings | Black | 8-Bolt, Dura Ace | Aluminum

5Dev 8-Bolt Spider Shimano Dura Ace Chainrings Converting The 5Dev 8-Bolt Spider Shimano Dura Ace Chainrings lets you run 5Dev 8-bolt cranks with a Shimano Dura Ace 2x system. It has a Shimano 4-bolt 110BCD pattern for Dura Ace 2x chainrings (will not work with Ultegra) and a crank bolt pattern for SRAM 8-bolt. At only 73g, you'll hardly know it's on your bike. Features This spider is cut to work exclusively with Dura Ace 2x chainrings Works with 8-bolt cranks Weight: 73g | 5Dev | 8 Bolt Spider Shimano Dura Ace Chainrings | Black | 8-Bolt, Dura Ace | Aluminum