Shimano Ultegra CS-R8100 12-speed Cassette

Shimano Ultegra CS-R8100 12-speed Cassette
7 reviews
Number of gears
Body Type
Cassette Ratio
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Type of shifting
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99,95 30,04 discount
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  • Ordered now, delivered on Wednesday
  • Free tracked delivery

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Pros & Cons

Pros & Cons

  • Great shifting performance, high shifting speed and smooth shifting while standing on the pedals.
  • This cassette contributes to 1/3 of the shifting speed compared to the 11 speed Shimano groupset.
  • The sweet spot between the 6th, 7th and 8th sprockets has been taken into consideration in the development of this cassette.
  • Compared to the Shimano Dura Ace R9200 12 speed cassette, you lose a little in terms of durability and weight.
Read more on what our customers have to say about this product

Specifications

Specifications

Brand
Shimano
Quality
Good
Bike Type
Road bike
Number of gears
12 speed
Body Type
Shimano Race HG 9-12 speed
Weight
291 grams (11-30T) / 345 grams (11-34T)
What groupset do you have?
Shimano Dura-Ace / Shimano Ultegra / Shimano 105
Quality
Better
Suitable for
Shimano Dura Ace Di2 R9200 / Shimano Ultegra Di2 R8100 / Shimano 105 R7100
All specifications

Description

Description

The Shimano Ultegra CS-R8100 cassette is for use with Shimano 12 speed racing bike groupsets. This Shimano Ultegra R8100 cassette is available in different ratios. This Hyperglide+ cassette includes the choice of the 'sweet spot' between the 6th, 7th and 8th sprockets. These are the sprockets most people like to ride on.

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

Technology

Hyperglide+
Hyperglide+ is a technology used in cassettes and chains that provides a more efficient way of shifting. It is not only faster, but also smoother under load and under road vibrations. In other words, better chain engagement, stronger guidance and smoother pedalling offer more power and confidence on fast-moving terrain.

Compatibility

• 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)

Assembly

Mounting with special tools
To assemble and disassemble this cassette you will need specific cassette tools. These can be found here. For further explanation and a detailed instruction on how to use these tools, we refer you to our blog about changing a cassette. See this blog.

Don't forget the assembly grease!
The lockring on your cassette should be tightened up, in most cases up to 40Nm. To be able to loosen the cassette, we recommend you to apply a little bit of assembly paste to the lockring. Our assembly greases can be found here.

User tips

How often should I clean my bike? Regular cleaning ensures that your material lasts longer and that you can enjoy your cycling for longer. How often you need to clean 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
Show more Show less

Reviews

Reviews

5.0 / 5
Average from 7 reviews
5
7 reviews
4
0 reviews
3
0 reviews
2
0 reviews
1
0 reviews

Most recent reviews

5 / 5

Very good equipment

- Stéphane 19 February 2024

Very good

Automatic translation

5 / 5

Fast and complete arrival

- Cyril 7 June 2023

Perfect

Pros & Cons

Delivery time
Price
Quality
Automatic translation

5 / 5

Indispensable for more serious climbing .

- Frank 25 July 2022

The mountain version of the 30 - 11. For anyone who does not want to ride on the lightest or second lightest gear on steeper climbs. If you only ride in the Netherlands you don't need it, or indeed, you are better off with the 30 - 11.

Pros & Cons

Actually makes Dura Ace obsolete
Price is not so bad
Quality
Switching ease
No
Automatic translation

5 / 5

Mantel is indeed a wielie good company

- Jimmy 20 June 2022

Been a regular Mantel customer for years ! The fine inscriptions on the boos brighten me up every time in contrast to harbinger letter carrier who often comes ringing the doorbell

Pros & Cons

Clear overview to make order
Fast service
Top quality
Automatic translation

5 / 5

Buena calidad buen precio

- Miguel 28 May 2022

El cassette shimano 11-34 creo que me va a venir bien para las rutas con mucho desnivel. Seguro que mi rodilla lo va a agradecer

Pros & Cons

Buen precio
Página web muy asequible
Rapidez en servir el material

5

Stéphane, 19 February 2024

Very good equipment

Very good

Automatic translation

5

Cyril, 7 June 2023

Fast and complete arrival

Perfect

  • Delivery time
  • Price
  • Quality
Automatic translation

5

Frank, 25 July 2022

Indispensable for more serious climbing .

The mountain version of the 30 - 11. For anyone who does not want to ride on the lightest or second lightest gear on steeper climbs. If you only ride in the Netherlands you don't need it, or indeed, you are better off with the 30 - 11.

  • Actually makes Dura Ace obsolete
  • Price is not so bad
  • Quality
  • No
Automatic translation

5

Jimmy, 20 June 2022

Mantel is indeed a wielie good company

Been a regular Mantel customer for years ! The fine inscriptions on the boos brighten me up every time in contrast to harbinger letter carrier who often comes ringing the doorbell

  • Clear overview to make order
  • Fast service
  • Top quality
Automatic translation

5

Miguel, 28 May 2022

Buena calidad buen precio

El cassette shimano 11-34 creo que me va a venir bien para las rutas con mucho desnivel. Seguro que mi rodilla lo va a agradecer

  • Buen precio
  • Página web muy asequible
  • Rapidez en servir el material

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7 reviews 0 reviews
Quality Good
Bike Type Road bike Road bike
Number of gears 12 speed 12 speed
Body Type Shimano Race HG 9-12 speed Shimano Race HG 9-12 speed
Cassette Ratio 11 / 30 / 11 / 34 11 / 34
Weight 291 grams (11-30T) / 345 grams (11-34T) 361 grams (11-34T)
99,95 From 69,95
This product View product

All specifications

General

Brand
Shimano
Quality
Good
Bike Type
Road bike
Number of gears
12 speed
Weight
291 grams (11-30T) / 345 grams (11-34T)
What groupset do you have?
Shimano Dura-Ace / Shimano Ultegra / Shimano 105
Quality
Better
Suitable for
Shimano Dura Ace Di2 R9200 / Shimano Ultegra Di2 R8100 / Shimano 105 R7100
Colour
Grey

Components

Body Type
Shimano Race HG 9-12 speed