Riding a tandem is double the fun, but the shared enjoyment of a tandem means double the load for the hubs as well. The 540 tandem hubs are built extra strong to handle that extra load.

• Riding a tandem is double the fun, but the shared enjoyment of a tandem means double the load for the hubs as well. The 540 tandem hubs are built extra strong to handle that extra load.
• Hardened steel axle, deep "V" sealing concept
• Hub flanges optimized for 2.34mm spokes like Alpine III