5Dev 8-Bolt Spider for Dura Ace 2x Chainrings 12"-24" Rims Designed to be compatible with

Designed to be compatible with 43-51mm chainlines

Manufacturer Part Number: 95-04904

Manufacturer Part Number: RF650B48-GKSK-D2

- Finish your bike off right with these high quality headset spacers

They feature 'a get out of jail’ 6mm Allen key on the drive side of the axle if you manage to round the non-drive side

5Dev 8-Bolt Spider for Dura Ace 2x Chainrings 12"-24" Rims Designed to be compatible withAllows the use of Dura Ace 2x chainrings with 5Dev 8 bolt cranks Chainring Bolt Pattern: Shimano 4 Bolt 110BCD for Dura Ace 2X Chainrings (will not work with Ultegra). Please note that this spider is cut to work exclusively with Dura Ace 2X Chainrings CNC machined in San Diego 73g Today's Stock Status 2 Available to ship in 2 4 Business Days UPC: 850058721910 EAN: Not available Manufacturer Part Number: Does Not Apply FD1700 186540 Q0 L