Shimano Ultegra CS-R8101 12-speed Cassette

The Shimano Ultegra CS-R8100 cassette is compatible with Shimano 12 speed road bike groupsets. This Shimano Ultegra R8100 cassette is available in different ratios. The 'sweet spot' between the 6th, 7th and 8th sprockets has been taken into account in this Hyperglide+ cassette, as these are the sprockets most people like to ride most on.

Shimano 12 speed makes it possible to retain the sprockets that are most comfortable to ride on, despite the large differences in ratio. Plus, Hyperglide+ technology delivers a 1/3rd shorter shifting time compared to previous cassette and chain combinations. The cassettes come with the well-known HG fit, which is compatible with all Shimano HG 11-speed bodies.

Hyperglide+
Hyperglide+ is a technology used in cassettes and chains that provides a more efficient way of shifting. It's not just faster, but also smoother under strain and when exposed to vibrations from the road. In other words, better chain engagement, stronger chain guidance and smoother pedalling offer more power and confidence on fast-changing terrain.

• 11 - 30 (11-12-13-14-15-16-17-19-21-24-27-30)
• 11 - 34 (11-12-13-14-15-17-19-21-24-27-30-34)

Specialised installation tools
You'll need specific tools to install and uninstall this cassette. These can be found here.

Don't forget the assembly grease!
The lockring of your cassette has to be tightened well, in many 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 clean my bike? Regular cleaning ensures that your materials last longer, so you'll be able to enjoy cycling for a longer time. How often you'll need to clean your bike depends on the weather conditions in which you ride. Do you cycle through all kinds of weather, or do you only go out when the sun is shining? It all affects the degree of wear and tear and some people will have to clean their bikes more often than others. Use the schedule below as a guide:

October to March:
• Clean every 200 km
• Rinse after every ride
• Dry and oil the chain after every ride
• Leave the bike to dry at room temperature

April to September:
• Clean every 300 km
• Rinse off after cycling in the rain
• Dry and oil the chain after polishing or rinsing
• Leave the bike to dry at room temperature