What is ultegra?
Our ULTEGRA series is "pro-proven" as it is a direct trickle down from our DURA-ACE group. It stands for state-of-the-art technology, proven in pro races, the technology used in ULTEGRA 6800 series with 11-speed, advanced designed brakes, latest chain treatment etc.
Is there a big difference between 105 and Ultegra?
Both 105 and Ultegra are 11-speed systems. 105 cassettes (above) are available in 11-28-tooth, 11-30, 11-32, 11-34 and 12-25 options. Ultegra is available in all of those plus 11-25 and 14-28. There's no reason why you can't use an Ultegra cassette with an otherwise 105 groupset, or vice versa.
Which is better Dura Ace or Ultegra?
The primary functional differences between the Ultegra and Dura Ace are as follows: Bearings and Bushings: Dura Ace uses higher grade bushings and bearings than Ultegra. … Weight: By using more aluminum and titanium, Dura Ace is about half a pound lighter than Ultegra when weighed as a complete group.
Can you mix Shimano 105 and Ultegra?
The simple rule for Shimano components is that as long as the parts share the same gear configuration, i.e. 8/9/10/11 speed, then yes, they can be mixed; so 105, Ultegra and Dura-Ace for example, can be mixed.