The Shimano Ultegra CS-6800 Bicycle Cassette features rider tuned wider gearing options with 11-speed.
For more information on how to keep your bike running smoothly, click here to see PBK's expert advice on taking care of your chains and cassettes.
If ordered before 8pm, delivered by courier next working day. Available on orders placed before 8pm (2pm weekends and Bank Holidays) for delivery next business day. Applies to most delivery addresses within mainland UK.
Please remember to add postal time (2-3 working days) to obtain a complete estimate of delivery to your door.
You will receive an email to confirm when your item has been sent.
You can also check the status of your order and individual items by accessing your account details and following the prompts.
Please allow 10 working days from dispatch of your order before notifying us of any late deliveries.
It may be advisable to check with your neighbors to see if your delivery has been left with them, check any places it could be left such as: garage, porch, or behind garbage cans if it was too big to fit through your mailbox. Contact your local post office to see if the item has been returned to the depot as undelivered and awaiting collection.
Please see our returns policy.
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For the price, the Ultegra line up is a fantastic value. You can't go wrong with this 11-speed cassette.
Living in the hills of the Ozark Mountains I needed a better casstte thatn the 11.23 that came with my groupset. I bought this 11/28 and am glad i did when attaching the hills. highly recommended.
Best value for an 11 speed cassette. 1/3 the price for Dura ace and stronger.
I bought this new 6800 11-speed cassette to put on my spare race wheels. I use Dura-Ace on my race bike but couldn't justify the much more expensive DA cassette on a backup wheel. It's fine for the purpose!
This cassette keeps being the best value, for a small weight penalty you get longer lifespan, and is hard to tell any performance difference compared to a Dura Ace cassette for half the price.
Ultegra cassettes work great with both SRAM and Shimano setups. Highly recommend the lower price cassette. Can hardly wait for this one to arrive from PBK! Ordered Dec 1st and still waiting…
awesome cassette smooth shifting great price quick delivery
This is typical excellent quality Shimano Ultegra and PBK pricing. I use 11 speed 9000 mechanical Dura Ace on my race bike which is a Trek 2013 Madone 7.9 That set up is incredibly light. Race wheels still get the Dura Ace cassette, but the Ultegra Cassette is just as good in every way except for a small difference in weight. Ultegra for training days, Dura Ace for race day wheels seems to be the perfect balance.