The Ultegra series is "professionally tested" as it is derived directly from the Dura Ace group. The technologies used in the new Ultegra 6800, such as 11-speed drive, newly designed brakes, new chain finishing, etc., stand for state-of-the-art technology that has proven itself in professional races.
Significant advantages: - Comfort, especially on long journeys, with more control - Ergonomic handle shape for light, faster more precise shifting with less operating force - Rider Tuned 11-speed shifting system for universal use - New 11-speed drive increases the shift selection for a wide variety of riding scenarios - Faster riding with better control, especially with grip from above - Brake force for more control increased by 10% - Efficient conversion of force input into propulsion - High rotational efficiency ensures high power output
The bearing could be changed easily even without a special tool, provided one has experience with bearings change. The old camp, however, held only 4000 km, the crackling noises were disturbing and could not be eliminated. Therefore only 4 stars.
Das Lager liess sich gut wechseln auch ohne Spezialwerkzeug, vorausgesetzt man hat Erfahrung mit Lager wechseln. Das alte Lager hielt jedoch nur 4000 km, die Knackgeräusche waren störend und liessen sich nicht beseitigen. Daher nur 4 Sterne.