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1/4
- Tracked & hassle-free delivery
- Trustpilot rating 4.7/5
- Easy returns
Ask a question about this product
Email Customer ServicePros & Cons
Pros & Cons
- Ain't no mountain high enough with this gear ratio!
- This cassette is made of light materials.
- Thanks to a special coating, this cassette lasts longer.
- Not every derailleur can handle this cassette. Be sure to check this in the description.
Specifications
Specifications
|
Brand
|
Shimano |
|
Bike Type
|
Road bike / Gravel bike |
| 11 speed | |
| SRAM Race 10/11 speed / Shimano Race HG 9-12 speed | |
| 11 / 34 | |
|
Weight
|
337 grams (11-34T) |
|
What groupset do you have?
|
Shimano Ultegra |
| Better | |
|
Suitable for
|
Shimano |
Description
Description
The Shimano Ultegra HG800 road bike cassette is the largest in its kind with a 34T sprocket. The cassette has been given an improved finish quality to work better with a more fluent shifting motion and with a higher level of durability than its predecessor. These lighter gears make the HG-800 ideal for use on longer climbs.
This cassette has a slightly better finish to ensure smooth shifting and durability. With its light toothing, the HG-800 is the ideal cassette on longer climbs while you hardly lose anything on straights.
Cassette's width:
The 11/34 gear ratio cassette is the same width as a 10-speed mountain bike cassette. Because of the spider in umbrella shape, it also fits over a 10-speed mountain bike body.
• Number of individual components: 9
• Material: nickel-plated steel
• Spider: Aluminium
• Cogs on the cassette: 11-13-15-17-19-21-23-25-27-30-34t
• Weight according to Shimano: 335 gram
• For other gearing look at the Ultegra R8000 11 speed cassette.
- Ultegra R8000 long cage derailleur (RD-R8000 GS, RD-R8050 GS)
- 105 R7000 long cage derailleur (RD-R7000 GS)
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.
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
Show more
Show less
Technology
Good workmanshipThis cassette has a slightly better finish to ensure smooth shifting and durability. With its light toothing, the HG-800 is the ideal cassette on longer climbs while you hardly lose anything on straights.
Cassette's width:
The 11/34 gear ratio cassette is the same width as a 10-speed mountain bike cassette. Because of the spider in umbrella shape, it also fits over a 10-speed mountain bike body.
• Number of individual components: 9
• Material: nickel-plated steel
• Spider: Aluminium
• Cogs on the cassette: 11-13-15-17-19-21-23-25-27-30-34t
• Weight according to Shimano: 335 gram
• For other gearing look at the Ultegra R8000 11 speed cassette.
Compatibility
This cassette is compatible with:- Ultegra R8000 long cage derailleur (RD-R8000 GS, RD-R8050 GS)
- 105 R7000 long cage derailleur (RD-R7000 GS)
Assembly
Special tools for mountingTo 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.
User tips
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
Find out more on our Blog
Replacing the cassette on your road bike or MTB [How-to]
Read moreReviews
Reviews
Most recent reviews
5 / 5
Super Kit
- Jacques 6 November 2023
Purchased as a kit with Ultegra derailleur and chain. Don't forget to fit the spacer washer before fitting the first sprockets on the freewheel body.
Automatic translation
5 / 5
Great product at great price
- Alessandro 25 August 2021
Perfect, hard to find on the net these sprocket boxes. Great price as well.
Automatic translation
5 / 5
The ideal mountain cassette
- Fabien 22 August 2021
Thanks to the 34x34, it's impossible to get stuck, and there's always a gear to turn your legs. The cassette has fewer holes at the top than the 11-32: 34-30-27-25-23 versus 32-28-25-22. You can keep the plate up to 27 with a good chain line for false flats. I keep the same chain length as with an 11-28 for racing, just adjust the derailleur tension screw. You just sacrifice the 12 and 14 teeth, which isn't a problem going downhill.
Pros & Cons
100% Shimano and Sram compatible
34x34 to go anywhere
Better mountain cassette than 11-32
Ultegra R8000 and medium clevis mandatory
Automatic translation
4 / 5
4 stars for soaring Shimano prices and lack of retail sprockets
- Frederic 19 August 2021
bought to compose a cassette special mountain with a 11x 28 to make a 14 x 34 well staged associated with a GRX 46 x 30 I can now make all the climbs with the train without asking me questions. I am an amateur of 54 years 1,92 cm 82 kg. cassette super reactive and fluid. 2 cassettes to make one is very expensive! Mr Shimano retail sprockets please! PS: rear derailleur medium clevis mandatory Bonne route
Pros & Cons
delivery
price
service
Shimano prices soaring
Automatic translation
5 / 5
Top product
- Stefan 18 August 2021
On the road bike in bikepacking mode absolutely helpful with this gear range
Pros & Cons
Easy
Wide gear ratio range
Automatic translation
5
Fabien, 22 August 2021
The ideal mountain cassette
Thanks to the 34x34, it's impossible to get stuck, and there's always a gear to turn your legs. The cassette has fewer holes at the top than the 11-32: 34-30-27-25-23 versus 32-28-25-22. You can keep the plate up to 27 with a good chain line for false flats. I keep the same chain length as with an 11-28 for racing, just adjust the derailleur tension screw. You just sacrifice the 12 and 14 teeth, which isn't a problem going downhill.
-
100% Shimano and Sram compatible
-
34x34 to go anywhere
-
Better mountain cassette than 11-32
-
Ultegra R8000 and medium clevis mandatory
Automatic translation
4
Frederic, 19 August 2021
4 stars for soaring Shimano prices and lack of retail sprockets
bought to compose a cassette special mountain with a 11x 28 to make a 14 x 34 well staged associated with a GRX 46 x 30 I can now make all the climbs with the train without asking me questions. I am an amateur of 54 years 1,92 cm 82 kg. cassette super reactive and fluid. 2 cassettes to make one is very expensive! Mr Shimano retail sprockets please! PS: rear derailleur medium clevis mandatory Bonne route
-
delivery
-
price
-
service
-
Shimano prices soaring
Automatic translation
Frequently bought together
Frequently bought together
Recommended by the product specialist
Recommended by the product specialist
Related products
Related products
|
|
|
|
|
| Shimano Ultegra HG-800 11 speed | Shimano Ultegra R8000 | SRAM Force PG-1170 | Shimano 105 R7000 + HG601 | |
| 44 reviews | 689 reviews | 49 reviews | 14 reviews | |
| Bike Type | Road bike / Gravel bike | Road bike / Gravel bike | Road bike | Road bike / Gravel bike / E-bike |
| Number of gears | 11 speed | 11 speed | 11 speed | 11 speed |
| Body Type | SRAM Race 10/11 speed / Shimano Race HG 9-12 speed | SRAM Race 10/11 speed / Shimano Race HG 9-12 speed | SRAM Race 10/11 speed / Shimano Race HG 9-12 speed | SRAM Race 10/11 speed / Shimano Race HG 9-12 speed |
| Cassette Ratio | 11 / 34 | 11 / 25 / 11 / 28 / 11 / 30 / 11 / 32 / 11 / 34 / 12 / 25 / 14 / 28 / CS-R8000 | 11 / 25 / 11 / 26 / 11 / 28 / 11 / 32 | 11 / 28 / 11 / 30 / 11 / 32 / 11 / 34 / 12 / 25 |
| Weight | 337 grams (11-34T) | 251 grams (11-28T) | 231 grams (11-28T) | |
| What groupset do you have? | Shimano Ultegra | Shimano Ultegra | SRAM Force | Shimano 105 |
| 64.50 | From 51.60 | 68.80 | 61.90 | |
| This product | View product | View product | View product |
Shimano Ultegra HG-800 11 speed Cassette
Shimano Ultegra HG-800 11 speed Cassette
Description
The Shimano Ultegra HG800 road bike cassette is the largest in its kind with a 34T sprocket. The cassette has been given an improved finish quality to work better with a more fluent shifting motion and with a higher level of durability than its predecessor. These lighter gears make the HG-800 ideal for use on longer climbs.Technology
Good workmanshipThis cassette has a slightly better finish to ensure smooth shifting and durability. With its light toothing, the HG-800 is the ideal cassette on longer climbs while you hardly lose anything on straights.
Cassette's width:
The 11/34 gear ratio cassette is the same width as a 10-speed mountain bike cassette. Because of the spider in umbrella shape, it also fits over a 10-speed mountain bike body.
• Number of individual components: 9
• Material: nickel-plated steel
• Spider: Aluminium
• Cogs on the cassette: 11-13-15-17-19-21-23-25-27-30-34t
• Weight according to Shimano: 335 gram
• For other gearing look at the Ultegra R8000 11 speed cassette.
Compatibility
This cassette is compatible with:- Ultegra R8000 long cage derailleur (RD-R8000 GS, RD-R8050 GS)
- 105 R7000 long cage derailleur (RD-R7000 GS)
Assembly
Special tools for mountingTo 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.
User tips
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
Find out more on our Blog