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.
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Reviewed 2/17/2023
by Anonymous
Competitive Racer
Golden, Colorado
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1 of 1 customers found this review helpful.
Solid choice for the money
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.
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2 of 2 customers found this review helpful.
Great for the tough climbs locally
I bought a second lighter wheelset for my gravel bike with more A road bias. My other wheelset have the same 11-34 gearing. Decided to upgrade to the HG800 from the HG700 mainly because the price was minimal and BTD'S VIP points made the cost negligible for a slightly lighter and nicer cassette. The 11-34t cassette paired to a 46/30 subcompact crankset allows decent road speeds but allows you to crush any hill on the road and all but the steepest trail climbs here locally. I have found that I can climb 16 degree fire trails with this cassette before I have to stand up and the tires skid out beneath me with a file tread tire.
Probably doesn't need to be said that you will need to add links to your chain if you are going from a smaller cassette.
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Reviewed 10/28/2022
by BigMac1957
Cycling Enthusiast
Las Vegas, NV
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1 of 1 customers found this review helpful.
Works well with my 11 speed dura-ace derailleur
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.
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Shimano Ultegra CS-HG800 11-Speed 11-34 Cassette
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Reviewed 11/4/2021
by rnfpdx
Cycling Enthusiast
Portland, OR
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1 of 1 customers found this review helpful.
Great for gravel. Don't forget the spacer!
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.
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Reviewed 11/2/2018
by Joe D
Cycling Enthusiast
Ridgefield wa
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2 of 6 customers found this review helpful.
Best place to buy!!!!!
Needed an 11 speed Cassette that could work on my 10 speed wheel. Bike Tires had it and at a great price. BT always the best to deal with. I have made well over 100 purchases from them. I usually pick up at their store in Portland Or.
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Reviewed 11/11/2021
by Anonymous
Cycling Enthusiast
LA
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Great cassette
I'm glad they had this in stock. Ultegra cassettes make that pro noise!
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Reviewed 11/4/2021
by Anonymous
Cycling Enthusiast
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This is great! Allowed me to use my old Chris King wheels with an 11 speed drivetrain
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!
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1 of 2 customers found this review helpful.
Gravel Cassette
Used this on a second set of wheels, GRX components, worked flawlessly.
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Reviewed 3/25/2019
by Anonymous
Cycling Enthusiast
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3 of 3 customers found this review helpful.
The casssette for the rest of us
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.
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Reviewed 11/19/2018
by tfolkner
Cycling Enthusiast
Cupertino, CA
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15 of 15 customers found this review helpful.
Low gears for steep hills
I live near the Santa Cruz mountains in California and my bike club rides frequently up very steep hills (15-20% grades). I ride 10k miles with 1 million feet of climbing annually, but past racing age. I use this 11-34 gear with Ultegra 5034 cranks resulting in a 34-34 low gear. This lets you climb the steepest hills while spinning a decent RPM and not straining your knees. Also helps on long hard rides near the end to climb hills when you're tired. If you are a 125 lb racer you don't want this cassette. It's only drawback is that to achieve the wide range there are some gaps in the gearing. I miss the 12 tooth sprocket.
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Reviewed 7/15/2018
by DonWA
Cycling Enthusiast
Palatine, IL
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5 of 5 customers found this review helpful.
Perfect addition to help with hills
I bought this cassette to help with hills as I am riding the Copper Triangle in Colorado this year. Wound up liking it so much I bought more of them to upgrade all my bikes. Fully compatible with Ultegra 8000 series derailleurs. With this cassette I could climb Everest .
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Ultegra
Love the replacement cassette. Shimano is always high quality
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Reviewed 7/10/2018
by DonWA
Cycling Enthusiast
Palatine, IL
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6 of 7 customers found this review helpful.
Great Product
I was already running the Shimano 6800 11-32 cassette but anything I can do to help save my knees is a plus. You wouldn't think 2 extra teeth is a big deal but it is noticeable. When Shimano introduced this cassette and made it compatible with my current shifters I went for it. You will also need the 8000 series derailleur and a new chain to make it all work but when you are finished you will have a bike that can climb Everest without having to get off and walk.
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Reviewed 6/14/2018
by Anonymous
Cycling Enthusiast
Winters CA
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5 of 5 customers found this review helpful.
A few extra teeth allows for a spin instead of grind.
This cassette fits on medium cage rear derailleurs. The gear spread is perfect so you are able to adapt your gearing to cadence when climbing.
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Reviewed 5/5/2018
by Anonymous
Competitive Racer
North East California
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3 of 3 customers found this review helpful.
Crush the steepest climbs.
This is a great addition to the Shimano cassette lineup. Not only does it give you some lower gearing for steep climbs it is compatible with 1011 speed mountain freehubs as well as 10 speed road wheels. This has allowed me to use my mountain bike wheels with Ultegra 11 speed drivetrain.
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Reviewed 4/2/2018
by MVeloman
Cycling Enthusiast
Northern California
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15 of 16 customers found this review helpful.
Nice cassette, fits 10 speed freehubs
I bought this to give me a little more gear on the 20% climbs in my area. I had been using an 1132 on my Ultegra 6850 equipped Roubaix. It did what I wanted, with the added benefit that it fits my old 10 speed wheels. The carrier for the largest gears is concave so it will fit the slightly shorter 10 speed freehub body. You need to use a spacer for 11 speed hubs. On the down side, it's 45 grams heavier than the 1132. It works fine with the medium cage Ultegra derailleur.
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Reviewed 10/31/2020
by Siouxbirds
Cycling Enthusiast
Sioux City IA
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3 of 3 customers found this review helpful.
widest range road cassette I could find
I had my knees operated on and wanted a wider ranger for my compromised climbing ability. This works great with the medium cage ultegra derailuer
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Reviewed 1/5/2018
by Smith
Cycling Enthusiast
Midwest
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2 of 2 customers found this review helpful.
When Achilles is a problem its time for 11-34 cassette
Easy rider bikeing , more spinning , more power with less stress on the leg,, better training faster biking, and nothing works when its twenty below zero.
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Reviewed 1/1/2018
by DBG
Cycling Enthusiast
Virginia
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1 of 1 customers found this review helpful.
Love the New Shimano HG800 34T Cassette
I am using this for hill climbing this year and the 34 will help get me over the top!
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