What speed is Dura-Ace 7900?
10 Speed
Shimano Dura-Ace 7900 10 Speed Road Cassette.
How much does a Dura-Ace cassette weight?
PRODUCT SPECIFICATIONS
| MODEL NO | CS-R9100 |
|---|---|
| SERIES | DURA-ACE R9100 Series |
| Average weight | 175 (11-25T) 193 (11-28T) 211 (11-30T) 189 (12-25T) 205 (12-28T) |
What is Dura-Ace cassette?
Shimano’s Dura-Ace R9100 Cassette has been designed to be as lightweight as possible. The cassette’s sprockets are made from alloy and carbon, reducing its overall weight without compromising on durability. Largest sprockets are mounted on lightweight alloy and carbon carriers to reduce weight and increase rigidity.
Is Dura-Ace 7900 Good?
Shifting performance – good overall but could be better We had grand expectations for 7900 after countless hours on Shimano’s latest XTR mountain bike triggers, what with their faster Instant Release cable spool and slick Multi-Release feature for multiple upshifts.
How old is Dura-Ace 7900?
2008: Dura-Ace 7900 The 7900 series components were developed under the concept of “Evolution of Perfection”. A derailleur comprising these components embedded the shift cable completely.
How much lighter is a Dura Ace cassette?
Is it purely due to the use of the titanium sprockets in the Dura-Ace cassette? Weighs only 64 grams for these two sprockets, due to the use of the lightweight aluminium spider and the titanium sprockets. Next 3 sprockets in the R9100 (19T, 21T, 24T) are also made of titanium, and are riveted to a carbon fibre spider.
Can I use Ultegra cassette with Dura Ace?
Thus, an Ultegra (6800/8000) 11-speed chain can be used with a Dura-Ace (9000/9100) 11-speed cassette. Similarly, there is no need to match the level of the chain and cassette to the rest of the groupset, so a 105 (5800) 11-speed cassette can be used with a Dura-Ace (9000/9100) 11-speed groupset.
How much lighter is Dura Ace than Ultegra?
Although differences like these might not seem like much, if this is extrapolated across every component, it causes a very noticeable difference in the weight of the groupset as a whole. As a result, the Dura Ace groupset shown below is over 300 grams lighter than the equivalent Ultegra groupset.