Shimano Ultegra 6600 10 Speed Cassette

Shimano Ultegra 6600 cassette suitable for 10-speed systems. This Shimano cassette provides perfect shifting performance, even in the most extreme and demanding of conditions. The largest chainrings are mounted on a lightweight aluminium spider which saves weight and pushes the stiffness to an optimal level.

• Use with Super Narrow HG chain for 10-speed
• With aluminum spider
• Weight: 235 grams

Gears:

• 13-14-15-16-17-18-19-21-23-25
• 14-15-16-17-18-19-20-21-23-25
• 15-16-17-18-19-20-21-22-23-25
• 16-17-18-19-20-21-22-23-25-27

NB!
Not suitable for triple shift systems and other racing bikes with a long cage (GS) rear derailleur.

105 5700 10-speed Rear Derailleur
Short cage (SS): 11/23, 11/25, 11/28, 12/25, 12/27, 14/25, 16/27
Long cage (GS): 11/28, 12/30

Ultegra 6700 10-speed Rear Derailleur
Short cage (SS): 11/23, 11/25, 11/28, 12/25, 12/27, 14/25, 16/27
Long cage (GS): 11/28, 12/30

Dura-Ace 7900 10-speed Rear Derailleur
Short cage (SS): 11/23, 11/25, 11/28, 12/25, 12/27, 14/25, 16/27

Special tools for mounting
To mount this cassette you need specific tools. These can be found here. For a more detailed explanation and instructions on how to use these tools please refer to our blog on replacing a cassette.

Don't forget the assembly grease!
The lockring of your cassette can be well tightened, in some cases up to 40 Nm. To make removing the lockring in the future easier, we recommend lubricating it with a bit of assembly grease. You can find our selection of assembly greases here.

How often should I wash my bike? Regular washing will keep your bike in good nick. It ensures that the parts on your bike last longer so that you can enjoy cycling happiness for longer. How often you should wash your bike is largely dependent on what sort of weather conditions you ride in. Are you always out there, come rain or shine? Or are you strictly a fair-weather cyclist? It all has an influence on the degree of wear on bike parts, and some of us have to wash our bikes more regularly than others. Refer to the plan below as a general guideline:

October to March:
• Wash every 200 km
• Rinse after every ride
• Dry and lube the chain after every ride
• Let the bike dry at room temperature

April to September:
• Wash every 300 km
• Rinse after a ride in the rain
• Dry and lube the chain after rinsing or washing
• Let the bike dry at room temperature