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    • Ciclosport CM 4.21 Computer

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        • $35.99 35.99
        • RRP $54.99
        • Save 35%
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Ciclosport CM 4.21 Computer

This new wireless cycle computer features not only with its modern and innovative look, but also with its PC configuration. This means that all accumulated data can be read-out from the device.

The CM 4.21 is the perfect attender for the ambitious cyclist on ample tours. Due to the TwoInOne system it is possible to use two different wheel circumferences. The CM 4.21 therefore can be used for two bikes and be upgraded with optional cadence and heart rate functions.


  • Huge, easy to read 3-line display (up to 10% larger than in the previous model)
  • Individually configurable display (Multi Choice System)
  • Aerodynamic design, scratch resistant casing
  • Save your totals on your pc and set-up the device with a software interface
  • Ease of use due to integrated rubber coated buttons
  • Quick and easy to operate using the simple menu structure
  • Ease of use due to our Twist Klick handlebar bracket
  • Multi Lock handlebar brackets, also suitable for bike stem installation
  • TwolnOne System
  • Fast battery exchange due to quick lock
  • Includes: CM 4.21, handlebar bracket and sensor, spoke magnet and mounting materials

Buy Ciclosport Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

  • Delivery cost $9.99
  • Delivers toUnited States of America
  • 365 Days return or exchange

    If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or fitted.

    More information on returns
  • Pay by Bank Transfer, PayPal or Card


  • Colour: Black

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