ShimanoUltegra CS-6700 10-Speed Cassette(Return to Product Page)

I ride a triple, so I'm already that guy. My 12-27 wore out and I had to replace it, and Shimano doesn't offer that combination anymore, so I tried the new 12-30 wide cassette instead. It is truly like cheating to climb with. I hardly ever hit the low end of this range but it's really nice to know that, instead of one more sag gear there's like two or three of them, and if 30-30 isn't enough, just walk.

The downside is that the spacing between each cog is large enough that it's often hard to find just the right gear combination for a long slog into the wind. I still miss the 12-27, it was the perfect cassette. But the 12-30 lets me climb like i was 20 years younger, or at least fake it.

I'm 55 and I ride a lot - a lot of roads, a lot of miles, and an lot of hills. Riding 100 miles a week and 12-15 centuries a year, I need a lot of versatility - gearing for the long, flat straights and gearing for the long, slow climbs! This is my go to cassette! Paired with a standard 53-39 crank, it'll climb anything and still give me 45 mph downhills. Only cassette you'll need!

Had a 105 12x27 and needed to replace so tried an upgrade to Ultegra and love the 28, as you can cruise more in the big ring when needed (like when you just don't quite want to shift to the 34T (compact) as you top over a roller hill.

Works very well with my sram red compact and shifters.

Save your knees and spin!

I use this for time trail great gearing no gaps in gearing where I need it

Not actually that much heavier than Dura Ace. A bargain in comparison considering the level of precision.

You can't beat the $$-weight-dependability value of the Shimano Ultegra CS-6700 10-Speed cassette. Rain, mud, sand, crud - you name it and the cassette always puts in a solid effort. The shifting is fast and precise and it allows one to cover all moves and situations with confidence.