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When will I receive my order?
Parts & Accessories orders that are placed before 1 pm are estimated to be delivered the next working day. More delivery info here.
For example, if you place an order before 1 pm on Wednesday, we'll aim to get this out that same day for estimated delivery on Thursday.
If, for example, you place your order after 1 pm on a Friday, or at the weekend, we'll aim to dispatch on Monday for estimated delivery on Tuesday.
Do you deliver outside of the UK?
We deliver to over 150 countries worldwide. Please add any items you require to the basket; the shipping to your destination is calculated at the checkout.
You can learn more about delivery information here. We have a separate page with estimated international delivery times.
Due to restrictions, there are some items we can't deliver internationally (battery packs and aerosols). These items are clearly stated on each product page.
Why can't I purchase some items?
Some certain products we hold exclusively to support our bike customers (those who purchase their bike directly from us).
When you purchase your bike directly from us, your account is unlocked for quick access to order these spares, should you need them.
Purchased from us, but don't see the option to 'Add to Cart'? Please get in touch and our team will be able to assist.
Description
Shimano CS-R8101 Ultegra 12-speed cassette 11 - 34T
The Shimano Ultegra CS-R8101 12-speed, 11-34T cassette is a high-performance road choice, offering a wide range for steep climbs and varied terrain. Its Hyperglide+ technology ensures fast and flawless shifting under maximal pedalling force. The rigid alloy sprocket carrier contributes to better power transfer and reduced weight (approx. 345g). Crucially, it remains compatible with a standard Shimano 11-speed road Freehub body.
Features:
- Hyperglide+ sprockets have a computer designed tooth configuration with contoured shift gates, resulting in 1/3 faster shift time than current HG cassettes providing seamless, smooth operation even under load
- 11-34T wide ratio gearing allows a more efficient use of energy
- Sprockets are cut away extensively and drilled to further reduce weight without reducing rigidity
- For use only with Shimano HG L and HGL2 freehubs
- Alloy cassette lockring
- For use with Shimano 12-speed Ultegra and 105 12 Speed derailleurs
- Average weight 345g
Next business day UK mainland delivery on parts & accessories
NEXT DAY DELIVERY
Parts & accessories ordered with a bike will arrive fitted where possible
WE FIT PARTS
Parts & accessories dispatched same day if ordered before 1pm
SAME DAY DISPATCH
We deliver electric bike accessories to over 150 countries worldwide
WORLDWIDE DELIVERY