ShimanoUltegra CS-HG800 11-Speed 11-34 Cassette(Return to Product Page)

I was having issues with the chain slipping and noticed that my cassette was badly worn.

I purchased the cassette at a great price @ BTD and it arrived in a timely manner. Just removed the old cassette, installed the new one and started riding.

Shimano Ultegra are quality products. I ride a road bike in an area where there are a lot of hills and do a lot of climbing. The 11/34 cassette works great for the areas I ride.

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.

I�m an older cyclist and needed a gear range that would make hills a little easier to negotiate. Installed the 11/34 cassette and have had no problems with shifting. Gear shifts are smooth. Had to make a slight adjustment with the rear derailleur is all.

It's possible to find this cassette from lots of sites.

Bike Tires Direct is usually less expensive and almost always faster shipping.

Helpful with questions.

A plus.

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.

I have a second set of wheels for my "all road" bike. I am using this on my new set for summer riding! Obviously, this product can be purchased through may outlets. Bike Tires Direct is always my first stop when shopping. Excellent service. I also love the VIP Buyers Club!

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.

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.

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.

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.

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.

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

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.

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.

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

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.

Great cassette

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

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.