Claris R2000 vs. 2400: Compared

Shimano Claris 2400 and the newer Claris R2000 are 8-speed groupsets that offer smooth shifting and braking performance, but there are some differences and compatibility issues that you should be aware of before making your decision.

A groupset consists of the parts that control the shifting and braking of a bike, such as the derailleurs, shifters, brakes, chain, and cassette.

We will compare the Claris 2400 and R2000 groupsets in terms of design, features, performance, and compatibility.


The most noticeable difference between the Claris 2400 and R2000 groupsets is the design of the shifters and the front derailleur.


The Claris 2400 shifters have external cables that run along the handlebars, while the R2000 shifters have internal cables that run under the bar tape.

This gives the R2000 shifters a cleaner and more modern look, as well as reducing the risk of cable damage or interference with other accessories. Some users may prefer the external cables for easier maintenance and adjustment.

Front Derailleur

The Claris 2400 front derailleur has a traditional design with a long arm that moves the chain across the chainrings. The R2000 front derailleur has a newer design with a shorter arm and a longer link that improves the leverage and reduces the effort required to shift.

This design is similar to the higher-end Shimano groupsets, such as Ultegra and Dura-Ace, and is supposed to provide more precise and reliable shifting.

Related: Can you Mix Shimano Groupsets?


Both the Claris 2400 and R2000 groupsets have similar features, such as:

  • Dual-control levers that integrate shifting and braking functions
  • Optical gear indicators that show the selected gear
  • Reach-adjust mechanism that allows fine-tuning of the lever position
  • Wide-range cassette options from 11-28T to 11-34T
  • Compact or triple crankset options for different terrain preferences
  • Dual-pivot brake calipers that offer powerful and consistent braking


The performance of the Claris 2400 and R2000 groupsets is largely comparable, as both offer smooth and reliable shifting and braking for casual and recreational riders. However, some users notice some improvements with the R2000 groupset, such as:

  • Easier and quieter front shifting due to the new front derailleur design
  • More comfortable and ergonomic lever shape and hood texture
  • Less cable friction and drag due to the internal cable routing
  • Lighter weight due to the reduced cable length and material

Related: Shimano PD-R550 vs. RS500: Compared


The compatibility between the Claris 2400 and R2000 groupsets is not straightforward, as there are some differences in the cable pull ratios and specifications of some components.

According to Shimano’s compatibility chart, the following components are compatible between the two groupsets:

  • Rear derailleur
  • Cassette
  • Chain
  • Crankset
  • Bottom bracket
  • Brake calipers

The following components are not compatible between the two groupsets:

  • Shifters
  • Front derailleur

You cannot mix and match the shifters and front derailleurs of the two groupsets, as they will not work properly together. Yet, you can use any 8-speed rear derailleur with either shifter, as they have the same cable pull ratio. You can also use other 8-speed derailleurs from Shimano, such as Altus or Acera.

Related: Shimano Deore RD-M591 vs. M592: Compared


The Shimano Claris R2000 and 2400 groupsets both offer reliable 8-speed performance for road bikes. The R2000 features a more modern design with internal cable routing and improved front derailleur, providing smoother shifting and enhanced ergonomics.

The 2400 offers a classic external cable design, which some riders may prefer for easier maintenance. While both groupsets share similar features and performance, it’s crucial to consider compatibility when upgrading or replacing components.

Choose the one that best suits your preferences and budget for a smooth and enjoyable cycling experience.

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