Spirit of the sport The new ULTEGRA with patented and brand new technologies from Shimano has been specially developed for denambitious street racing. The large chainring with HOLLOWGLIDE technology and the innovative design ensure optimum shifting performance.
- 10x HG cassette
- Aluminum pinion carrier and light metal circlip
- Improved switching function through more precise switching operations
- Optimized pinion design for precise shifting
- Weight: 209 g (11-23Z)