• Shimano Zee M640 Shadow+ 10-Speed Rear Mech

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        • $51.49 51.49
        • RRP $80.95
        • Save 36%
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      23-28t - Close Ratio
      32-36t - Wide Ratio
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Shimano Zee M640 Shadow+ 10-Speed Rear Mech

The Shimano Zee M640 Shadow+ 10-Speed Rear Mech features their unique Shadow RD+ technology, which is proven to reduce chain slap alongside drop and impact noise. The Zee M640 10-speed rear mech has a low profile that neatly tucks the short cage safely below the cassette cogs. The Shimano Zee M640 Shadow+ 10-Speed Rear Mech is ready to handle the needs of MTB riders, whether enduro or downhill racers or those looking for an efficient cross-country cruise.


  • Shadow RD+
  • Short cage
  • 10-speed only
  • Compatible with Dyna-Sys
  • Close gear ratio
  • Shadow RD technology: Super low-profile design with built in chain stabiliser
  • 28T Capacity


  • Shadow RD+: Traditional derailleurs extend wider than the profile of your bike. With its low-profile design, Shadow RD+ is a more compact derailleur that fits closer to the frame, with more direct cable routing. Shadow RD maintains a consistent distance to the cassette for increased shift stability. The reduced body width creates a sleek and smooth appearance, ensuring less damage in a crash.

A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).

Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

  • Delivery costFREE
  • Delivery toUSA
  • 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 the component hasn’t been fitted.

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


  • Colour: Black
  • Size: 23-28t - Close Ratio, 32-36t - Wide Ratio
  • Speed: 10 Speed

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