Record: a guarantee of performance and quality since time immemorial, the Record gear group has had countless sporting successes in the professional world and is now ready to take off with its latest "revolution", waiting impatiently to take on new challenges, as the greatest it has already won: performance. A shifting process with the greatest effort is no longer a problem with the new Record shifting group and if you notice that the chain has changed from the small chainring to the large one, you might think that you are just using an electronic EPS drive system! The same applies to the super-fast, smooth, fluid and noiseless switching process. Now it's up to you to set the record! - Purpose: derailleur system - Details: - 5 pieces included - Type: chain lock chain - System compatibility: 11-fold