MICRO SHIFT Advent X Rear Derailleur 10 Speed



Just as mountain biking is not complicated, neither should the drivetrain bE That's how the Advent X / Advent X was developed , the widest and lightest 1×10 MTB group availablE Available with a regular freehub body and chain, combined with a rear derailleur using the durable Rachet-and-Pawl clutch, owning a quality drivetrain has never been easier.

With race-grade light weight and all-around gear capacity, Advent X brings high performance without the budget woes common with high-end components.

10-speed chain and a wide range of 11-48t sprockets make it easy to find the right gear for the toughest conditions and The 10-speed chain and wide range of 11-48t sprockets make it possible to find the right gear even in the toughest conditions. In addition, large pulleys and unique stabilizers with high chain retention minimize chain troublE This derailleur is truly a derailleur with all the necessary features.


  • Compatible only with Advent X 10-speed drivetrains
  • Compatible with standard 10-speed chains
  • Stabilizer has ratchet & clutch for chain safety and can be turned on and off with a switch
  • Higher pulley teeth for improved chain safety
  • Aluminum cage is adopted






Cage Length

Medium Cage

Max Cog






Cage Material







  1. We ship within 1-2 business days after receiving your order (payment). (Basically, orders placed before 12:00 p.m. are shipped the same day.)
  2. Messenger delivery is available within Nagoya City only.
  3. We ship every day from Monday to Sunday, except on temporary holidays.
  4. Available delivery areas: All over Japan and the world.
  5. Please note that delivery may be delayed due to credit card processing status. If you would like to specify the delivery date and time, please fill in your request in the additional information in the shopping cart.
  6. The product will be shipped from Circles.
  7. Please contact the shipping company in case of damage or loss during shipping.

Regarding the delivery of complete bikes

  • Please note that a separate shipping fee of 9,900 yen (tax included) will be charged for shipping complete bikes. (However, an additional fee will be charged for delivery to Okinawa and remote islands.)
  • After receiving your order, we will do a final check and ship complete bikes, but it may take 1-2 weeks. Please understand.
  • We will send the bike with some parts removed for packing. We strongly recommend that you have your bicycle assembled at your nearest bicycle store.
  • We will inform you of the delivery date and other details by e-mail.
  • We apologize for any sales discrepancies at the store.

Regarding the delivery of frame sets

  • Nationwide flat-rate shipping: 5,500 yen (tax included) (However, an additional fee will be charged for delivery to Okinawa and remote islands.)
  • We will inform you of the delivery date and other details by e-mail.
  • We will provide the pre-treatment of facing and tapping for the frame sets purchased at our store as a service. We will inform you separately after purchase.
  • We can also install a headset and BB for a fee, so please feel free to contact us.

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