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Shimano Ultegra CS-HG800 11-Speed 11-34 Cassette
Shimano Ultegra CS-HG800 11-Speed 11-34 Cassette
Shimano Ultegra CS-HG800 11-Speed 11-34 Cassette
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Shimano Ultegra CS-HG800 11-Speed 11-34 Cassette 1
Shimano Ultegra CS-HG800 11-Speed 11-34 Cassette 2
Shimano Ultegra CS-HG800 11-Speed 11-34 Cassette 3

Shimano Ultegra CS-HG800 11-Speed 11-34 Cassette

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Mfg PartNum: ICSHG8001111134
(34 customer reviews)
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Description

Ultegra Delivers Bigger Gears For Bigger Climbs

Turn your roadie into a gravel beast with Ultegra 11-34. The Shimano Ultegra CS-HG800 11-Speed 11-34 Cassette provides wide-range gearing that covers the low end while giving you bigger gears for bigger climbs in rough terrain. This cassette features a durable nickel-plated steel cog construction for corrosion-resistant-riding that will stand up to seasons of use.

Features:

  • Hub body designed to fit a variety of bikes from MTB to road bikes
  • Spacer required to fit hub body to road bikes
  • ULTEGRA R8000 Series
  • Compatible with GS cage rear derailleurs
  • 11-13-15-17-19-21-23-25-27-30-34T gearing
  • Compatible chain: HG-X11/CN-LG 11-speed
  • Weight: 335g

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

* Due to limited availability of this product, we are limiting the quantity per customer to 2 units to allow more of our customers to purchase this product. We are sorry for the inconvenience.

Specifications

 

Mfg PartNum: ICSHG8001111134 

 

Cassette Use: Road 

 

Cassette Type: Shimano 11 

 

Drivetrain Speed: 11-Speed 

Reviews

Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
(29)
(4)
(0)
(0)
(1)
(85%)
(12%)
(0%)
(0%)
(3%)
Going to the Rockies
by Moab Man
Cycling Enthusiast
Marin/Moab
1 of 1 customers found this review helpful.

Doing a tour of Utah and Colorado. Decided to get a lower gear for the altitude climbs. Fit perfectly on the Shimano wheel in place of an 11-32. Did not need to shorten the chain, just a turn or 2 on the B screw.

Reviewed 5/13/2024
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Solid choice for the money
by Anonymous
Competitive Racer
Golden, Colorado
3 of 3 customers found this review helpful.

Crisp, clean shifting cassette for those who don't feel like spending the extra cash for the Dura Ace. The larger 34 tooth gearing works perfectly in the Colorado mountains or on the steep gravel roads.

Reviewed 2/17/2023
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SRAM 11sp compatible
by PNW Biker
Competitive Racer
Pacific NW

Sweet spot gearing for PNW Cyclocross (SRAM 11x32 is too high for hilly CX courses, and the 11x36 is too low for flat courses, but Shimano's 11x34 is just right). Fully companiable with SRAM Force1 1x11sp.

Make sure you use the supplied freehub spacer.

Reviewed 11/6/2023
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What's not to like?
by Anonymous
Cycling Enthusiast
Mid-Atlantic
1 of 1 customers found this review helpful.

I've been using Ultegra cassettes ever since I broke two Dura Ace cassettes. They are quiet, shift great, and if you replace your chain when needed these cassettes last for well over 10,000 miles. The only reason I just bought a new one is that I'm looking for slightly lower gears for climbing as my girlfriend is the "Fastest girl in the world" and I'm trying to keep up with her on long steep climbs.

Reviewed 10/17/2023
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Replaced an Ultegra 11-28
by Rainman737
Cycling Enthusiast
Camarillo, CA
1 of 1 customers found this review helpful.

Very high quality and great having the extra low gears for climbing. Be sure your derailleur can handle the larger cassette or buy a wolf tooth extension. You will also need a new chain. Very pleased with this purchase.

Reviewed 6/23/2023
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Solid smooth shifting
by AAcyclist
Cycling Enthusiast
Ann Arbor, MI
1 of 1 customers found this review helpful.

A rock solid, well made product. Shifts are smooth and quiet.

Reviewed 10/10/2023
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The cassette works great
by BERoss
Cycling Enthusiast
Annapolis, MD

The cassette was delivered without any issues. I gotten installed for an upcoming event that required some climbing elevation. I wanted to be ready. The cassette works great.

Reviewed 10/13/2023
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Works well with my 11 speed dura-ace derailleur
by BigMac1957
Cycling Enthusiast
Las Vegas, NV
2 of 2 customers found this review helpful.

I bought this to use when I do long very steep climbs in place of my usual 11-30 cassette. Its nice to have 2 easier gears on those climbs.

Reviewed 10/28/2022
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Great climbing cassette
by Dave
S. C.

As alaways you get what you pay for, it's pricey but worth it for the quality and smooth shifting.

Reviewed 7/28/2023
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Great for gravel. Don't forget the spacer!
by rnfpdx
Cycling Enthusiast
Portland, OR
6 of 6 customers found this review helpful.

Replaced an 11-32 on my gravel bike. Nice to have the extra teeth for a little more relief when the going gets steep. NOTE that even though this is branded as an Ultegra cassette, it is actually spec'd for mountain bikes. Meaning - if you're using a road hubset you need to install the included spacer on the freehub before you install the cassette.

Reviewed 11/4/2021
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Solid Shimano
by Andrew
FLA

Good enough for flat, great for steep climbs

Reviewed 1/13/2023
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Shimano Ultegra CS-HG800 11-Speed 11-34 Cassette
by DutchTouch

Great cassette

Reviewed 1/13/2023
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Gateway cassette
by Little pebble
Cycling Enthusiast
Carlton, Oregon

11-34 ultegra cassette is what allows this older cyclist to climb�5000 miles on my current ultegra

Reviewed 10/21/2022
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Needed that extra cog
by Anonymous
Cycling Enthusiast

There are steep hills in the Islands , so I opted for this cassette... Im not too thrilled with the spacing of the gears, but it performs as well as can be expected..

Reviewed 12/6/2020
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Gravel Cassette
by J brown
Idaho
1 of 2 customers found this review helpful.

Used this on a second set of wheels, GRX components, worked flawlessly.

Reviewed 1/31/2020
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Works
by Anonymous

No issues so far.

Reviewed 2/25/2022
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Shimano dropped the ball on this one
by tiopablito
Cycling Enthusiast
Georgia
4 of 10 customers found this review helpful.

Largest spider is bad design. Third from largest cog is too close to second from largest and fourth cog also is a little wonky. Several reviews I read before buying this warned me, but I reckoned Shimano would have corrected the problem. Nope (. Going back to the 105 cassette until their gravelCX groupset is available.

Reviewed 5/28/2019
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Great cassette
by Anonymous
Cycling Enthusiast
LA

I'm glad they had this in stock. Ultegra cassettes make that pro noise!

Reviewed 11/11/2021
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The casssette for the rest of us
by Anonymous
Cycling Enthusiast
5 of 5 customers found this review helpful.

There is no shame in getting the gears that work FOR YOU! My setup Praxis Zayante 4832, Shimano Ultegra FD-6800, and Ultegra RD-6800-GS (long cage). The HG800 11-34 was a simple drop-in replacement for a CS-R8000 11-32. I tightened the B-Screw a 12 turn but it really wasn't that necessary. I did not even have to change the chain. The derailleurs have no problems shifting small-small to big-big and every combination in between.

Reviewed 3/25/2019
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This is great! Allowed me to use my old Chris King wheels with an 11 speed drivetrain
by Anonymous
Cycling Enthusiast

With the advent of 11 speed road groups, I wanted to use my old 10 speed Chris King wheelset.

This let me use this wheelset for at least a few more years!

Reviewed 11/4/2021
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