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The Mahle Smartbike Systems Magnet Ring Cassette Lockring for 12-speed systems fixes the freewheel to communicate with the PAS sensor.
The Mahle Smartbike Systems Magnet Ring Cassette Lockring for 12-speed systems fixes the freewheel to communicate with the PAS sensor.
Mahle

Mahle Smartbike Sys. Mag. Ring Cass. LR 12-sp. Fits X35/X20 Dri. Sys.

£24.99
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With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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Returns & Replacements

We want you to be completely satisfied with your purchase. If something isn’t right, here’s how we can help:


🕒 Returns Window

  • Parts, Accessories & Clothing: Return within 30 days (in-store or online)
  • Bikes & Frames: Return within 30 days (online orders only)

📦 Return Conditions

To be eligible for a return:

  • Items must be unused, unfitted, and in resale condition
  • Returned in original, undamaged packaging
  • Properly packed to prevent damage in transit
    (Contact us if you need packaging advice)

⚠️ Important:
Please do not attach labels or tape directly to retail packaging — wrap the item securely first.


🚚 Returning Your Item

Online Orders

  • Customers are responsible for return postage costs
  • We recommend using a tracked/recorded delivery service
  • If the item is faulty, damaged, or incorrect, we will:
    • Refund reasonable return postage costs
      (Excludes premium/special delivery or international shipping)

In-Store Purchases

  • Must be returned to the original store of purchase
  • Collection will also be from that store

⚠️ Important Information

  • Return requests must be submitted in writing or via email
  • We are not responsible for loss, time, or costs incurred during returns (including warranty returns)

🔧 Non-Returnable Items

We do not accept returns on:

  • Custom bike builds
  • Used or ridden bikes
  • Custom or made-to-order items

📌 Special Orders

Items ordered specifically for a customer (not held in stock):

  • May incur a restocking fee if cancelled
  • Or loss of deposit

📝 How to Start a Return

Please complete our Returns Form to begin the process.

Mahle Smartbike Sys. Mag. Ring Cass. LR 12-sp. Fits X35/X20 Dri. Sys.

Brand:Mahle

Code:MH40010100001000

The Mahle Smartbike Systems Magnet Ring Cassette Lockring is designed for 12-speed systems to facilitate communication with the PAS sensor.

This magnet ring functions by fixing the freewheel, ensuring the Mahle Smartbike Systems can accurately communicate with the PAS sensor for optimal performance. It is compatible with both X35 and X20 drive systems.

Features:

  • Compatible with 12-speed systems
  • Fits X35 and X20 drive systems
  • Fixes the freewheel to communicate with the PAS sensor
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