Is Dura-Ace crankset worth it
it's lighter, more durable, more efficient, and IMHO it actually shifts slightly better. I mean if you are well heeled enough to ride full dura ace – go for it… but you don't need to. Dura-Ace is made with lighter materials than Ultegra. An amateur cyclist would probably not notice any difference between the two.
Is it worth upgrading your groupset
If it's not completely past saving, the old groupset often makes good fare for a winter bike. … If your bike frame is electronic groupset compatible, your budget allows for it and existing groupset is worn out, then an upgrade to electronic shifting is well worth it.
Is Dura-Ace worth it over Ultegra
Although Dura Ace is considered to Shimano's out-and-out performance groupset, surprisingly, Ultegra is generally deemed to be much more versatile, mainly because of the lower range of gears that it offers. While Ultegra cassettes go all the way up to 34 teeth, Dura Ace cassettes only go up to 30 teeth.
How much better is Dura-Ace than Ultegra
Although Dura Ace is considered to Shimano's out-and-out performance groupset, surprisingly, Ultegra is generally deemed to be much more versatile, mainly because of the lower range of gears that it offers. While Ultegra cassettes go all the way up to 34 teeth, Dura Ace cassettes only go up to 30 teeth.
Is it worth upgrading from Ultegra to Dura-Ace
The quality of the Ultegra and Dura-Ace components is almost identical, but Dura-Ace is slightly lighter. If you're a competitive climber to whom a few grams of weight savings makes a big difference, then Dura-Ace would be justified.
How many miles does a Dura Ace cassette last
I usually get about 2500 miles per Dura Ace chain, and swap the cassette on the fourth chain, at 9-10,000 miles.
How long do Dura Ace cassettes last
Shimano Dura-Ace 9000 durability
Over more than 10,000 miles of riding, through wet, salt-covered Colorado winters, muddy Belgian springs, and hot summers, Dura-Ace proved admirably durable in most areas.
Is it worth upgrading to Dura-Ace
In a word, no. Dura-Ace is a little lighter, a little nicer looking (especially the crank). But if your eyes were closed, you couldn't tell the difference between the two riding them. It's not worth the substantial price difference.
Does a better groupset make you faster
No, you won't get big difference between them in term of performance (speed, endurance, power). More speed will give you smoother ride when you change gears. It won't give extra speed (since both possibly use same final gear) and maybe save a few watts from your legs.
Is Dura-Ace worth the extra money
In a word, no. Dura-Ace is a little lighter, a little nicer looking (especially the crank). But if your eyes were closed, you couldn't tell the difference between the two riding them. It's not worth the substantial price difference.