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Your cart is empty.We'll tell you straight up that while we appreciate the appeal of Dura-Ace cassettes, we understand why you would choose Ultegra for your bike. Smart racers routinely save money by going with Ultegra cassettes; the money saved can go for other weight shaving measures. Shimano Ultegra CS-6700 Cassettes are lighter than their 6600 brothers, doing a nice job of closing the gap on Dura-Ace. The tallest cogs are riveted onto an aluminum carrier for weight savings, and they're more gentle on aluminum cassette bodies.
Michael
Reviewed in the United States on January 17, 2025
A pretty easy install if you have all the tools to do it. This cassette went on easily, and now my chain isn't slipping as it was before. I shouldn't have waited as long as I did to swap it out.
Greg Praught
Reviewed in Canada on September 28, 2024
Exactly what I ordered
Daniel T.
Reviewed in the United States on September 22, 2024
I’ve been using Ultegra cassettes for a while now and they’re amazing.
greg
Reviewed in the United States on July 17, 2024
I've used shimano cogsets for 30 years. first time I've ever had one that simply does not stay tight when the lockring is torqued down. Used the back spacer supplied, but had to add an extra one to get it to work on a shimano 105 hub.
Doug
Reviewed in the United States on May 22, 2024
Cassette was as expected for Ultegra level quality. I was trying to decide between XT 10-32 cassette and this Ultegra 10-30 cassette. I am replacing an older Dura Ace 10-27 cassette. Looking for additional lower gear range. Dura Ace is super light. The XT was the heavier than the Ultegra. Decided to stay with Ultegra since I have Ultegra road group. Did not disappoint. Flawless shifting and smooth transition gear to gear. You will need cassette chain whip and cassette locking tool to remove and install the new cassette. Otherwise is very easy to install.
Customer
Reviewed in the United States on November 12, 2024
Works great, legit Shimano.
Steven R.
Reviewed in the United States on October 6, 2024
I got this cassette as a long overdue upgrade for my road bike (had 12 years of frequent riding on my original drivetrain, so I got new cassette, chain rings, chain). I’m super happy with this cassette. The quality is excellent - very sturdy build yet still relatively light weight. And the proof is in the riding: my bike shifts like a dream!
Rodrigues Manuel
Reviewed in France on March 24, 2021
Bien reçu ma cassette a vélo ,livraison rapide bon matériel ça changé mon vélo pour la montée formidable .Merci
david heaney
Reviewed in the United Kingdom on April 8, 2021
Just what I required as I struggled to find the same elsewhere. I didn't want to change the gearing on bike excellent
Clyde Taeger
Reviewed in Canada on October 4, 2020
3 words..:Great, Great, Great!!!Ok...some more words...buttery smooth. Wonderful! This fixed my very annoying chain skip and gave me a really excellent excuse to upgrade!
シン・荒北仮面
Reviewed in Japan on July 8, 2016
トップギアが１１になったことで長い下りでの最高速度と平均速度が上がりました25Tも考えましたがビギナーの私でも平坦・登り・下り オールマイティに安定して使えるこちらのギア比をチョイス
StL Cujo
Reviewed in the United States on March 12, 2014
Here's a scenario: You go down to your LBS and pick up a bike off the shelf. "Wow, this is a great deal!" They tell you its a 105 bike and you are super excited to get a bike with great kit for a great price. You get the bike home and go for a few rides then a few weeks later start looking through specs to find out how you can make the rig faster (without training harder) Your local bike shop probably didn't bother giving you a full run down of every component so you go bike them on the Makers website and then you have this epiphany! "This isn't a full 105 bike or Ultegra (or what have you)" The brakes are actually a cheap Tektro variant, the crankset is probably something by FSA and the cassette in likely Tiagra.Now you know why your bike was so well priced. If you're smart you take the FSA crank off right away and post it on Ebay. hopefully you get $40-$50 and that can be plopped down for a new Ultegra crank that is super stiff and provides instant response. After that you tackle the rear Cassette and the jump from that Heavy Tiagra to Ultegra is immense.This Ultegra Cassette is fantastic. If you live where there are hills (10-15 degrees and up), you'll love this cassette. you'll be the guy laughing on group rides when your buddies on their fast racing bike with 11-21 cassettes or 12-23 cassettes are killing themselves out for the saddle crawling up big hills while you sit down and enjoy a nice casual stroll up the hill.
mrtogo
Reviewed in the United States on July 27, 2013
I was forced to switch to a double front from a triple due to a frame failure on my old bike, and even though the used bike I bought featured a compact crankset I still found it impossible to negotiate my old climbs without risking heart explosions and strokes. I also found that I could never quite find the right gear on the flats or gentle slopes--I was always slightly overtaxed or under-challenged with the 11-25 that came with the bike I bought. Then, I saw this setup on Amazon, and even though it was slightly more than I like to pay for a cassette, it was worth every penny! Not only am I back on the 12% grades, I also find that I have plenty of great gear combinations for all terrains. The big question everyone seems to grapple with on this item is if their rear derailleur can handle the 30 tooth cog. For me it was a simple swap out--no adjustments were necessary on my Shimano Ultegra short cage derailleur at all. I would point out that chain length is critical here. My first stab at it had the chain just slightly too long, and the idler cog did touch the cassette when set to the 30 tooth ring. I watched a couple of youtube videos on proper chain length, followed their suggestions, and everything fell into place perfectly. I couldn't be happier with this purchase.
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