Deore CS-M4100 Cassette
Deore CS-M4100 Cassette

Deore CS-M4100 Cassette

SKU: ECSM410010142

Regular price $51.99 Sale price$43.99
Rear Speeds
  • In stock, ready to ship
  • Inventory on the way
  • Free shipping on all orders $49+

The Shimano Deore CS-M4100 10-speed cassette offers a wide range of gearing options. With its lightweight sprocket carrier, it delivers smooth gear steps and precise shifting. Available in 11-42 tooth and 11-46 tooth configurations.


  • Ride anywhere with smooth and precise HG shifting
  • Cassette Cogs: 11-42t: 11-13-15-18-21-24-28-32-37-42t
  • Cassette Cogs: 11-46t: 11-13-15-18-21-24-28-32-37-46t
  • Compatible Chain: HG-X10 10-speed
  • Series: Deore
  • Generation: M4100
  • Number of Speeds: 10
  • Finish: Plated

Shimano Deore Compatability:


Please reach out to us with any questions you may have on anything we sell. We want to make sure you get the right part the first time. Our lifelong riders at Thunder Mountain Bikes are knowledgeable and would love to talk to you!


We currently offer both economy and expedited shipping options though FedEX and USPS. 

Orders totaling over $49 are eligible to ship for free via an economy ground option of our choice. 

If you're in need of something super-quick, please contact us directly. We may be able to overnight your order with an additional fee and depending on your location. 


Should there be an issue with the item you bought, or you no longer need your purchase, we will be happy to set up a return.

All returns must be requested within sixty (60) days of the fulfillment date (i.e. the date we printed the shipping label and boxed up your order.) All returned items must be received in new and unused condition, with the original tags and labels attached, and in the original packaging.  We cannot accept returns on any items that have been installed or show wear of any kind. 

Return Process

To request a return, please visit: and follow the steps to return eligible items from your order. 


After receiving your return and inspecting the condition of your item, we will process your return. Please allow at least seven (7) days from the receipt of your item to process your return or exchange. We will notify you by email when your return has been processed.

For all Special Order items, there is a 25% restocking fee. Special Order items are those that we do not currently stock.


For defective, damaged, or if we sent you the wrong products, please contact us using the phone number or email below.

Other questions?

If you have any questions concerning our return policy, please contact us at:

(928) 282-1106   |

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Customer Reviews

Based on 5 reviews
Walter Lobmeyer
Cassette Replacement

Arrived ahead of promise, easily installed and fixed my skipping chain issue.

Bigger cassette

This worked perfect. Gave me a little easier gear for those tough climbs.

Thomas Richards
Deore 11-42 Cassette

The hard to find part I needed for the right price.

Chris Morfas
Prompt, trouble-free delivery

A good product delivered quickly 👍🏻

Jens Roettum