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Shimano Unisex 305751220 Ultegra Cassette R8000 11V 11 V

  • 11-speed Ultegra cassette
  • 11-32 tooth range
  • Road and e-bike use
  • 2 year manufacturer warranty
  • 0.4 kg item weight
  • Silver finish

Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

An eleven-speed Ultegra road cassette with a wide enough range for hills, for riders replacing a worn cassette on a compatible drivetrain. Several rows in the specs are plainly wrong, so rely on the headline details.

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ASIN: B071JT6127Model: CSR8000132Category: Cassettes & Freewheels

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Overview

A road bike or an e-bike with eleven gears at the back is where this Ultegra cassette belongs, in a silver finish. The speed count and the tooth range come from the title and highlights, while other fields are scrambled.

The reason to buy is genuine Ultegra shifting hardware in a broad gear range, backed by a two year manufacturer warranty. The limit is the listing's data quality, which calls the item a padlock and gives implausible materials.

Who it's for

Road and e-bike riders who want an Ultegra cassette with a wider top gear for climbing. Riders on ten-speed or twelve-speed drivetrains need a cassette made for those systems.

Pros and cons

Pros
  • Ultegra road cassette
  • Wide tooth range
  • Two year warranty
  • Suits road and e-bike use
Cons
  • Item type row says padlock
  • Material rows look wrong
  • Freehub fit not stated

Performance notes

Gear range sets how easily a rider can climb and how fast they can spin out, so a wider range suits hilly rides. Shifting quality still depends on a matching chain, derailleur and a clean, correctly adjusted drivetrain.

Specifications

ModelCSR8000132
Dimensions & fit
Item weight0.4 kg
Capacity & performance
Speeds11-speed
Tooth range11-32 teeth
Construction & materials
ColorSilver
Warranty & support
Warranty Description2 year manufacturer
Other details
UseRoad and e-bike

Closest rivals on specs

microSHIFT ADVENT Cassette
  • Item Weight 0.88 vs 0.77 pounds (+14%)
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  • Item Weight 0.88 vs 1 pounds (-12%)
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Frequently asked questions

Is the Shimano Ultegra R8000 cassette a padlock?

No. The item type row says padlock, but the title and highlights describe an eleven-speed cassette. Treat that row as an error.

Does the Shimano R8000 cassette come with a chain or freehub?

No. The components row says no, so it is the cassette only.

Will the Shimano R8000 cassette fit a ten-speed bike?

The listing sells it as an 11-speed cassette. It is not described as compatible with other speed counts.