Shimano Dura-Ace 9120 Mechanical Disc Brake Rear Right



A true shifting and disc brake system for the next generation race bike, the Shimano Dura-Ace ST-R9120 Hydraulic/Mechanical Shift Lever and BR-R9170 Hydraulic Disc Brake Caliper will propel you to the next level. The Mechanical Dual Control Lever features a refined hood shape with svelte shared ergonomics for more rider control in race conditions. The ergonomically-enhanced shift levers now produce a more defined shift click for a more intuitive feel and quicker shifting operation. The Dura-Ace 9170 hydraulic disc brake caliper was redesigned for the highest level of road performance. Utilizing a lightweight and minimalistic Flat Mount design, the R9170 caliper features stopping power ideally tuned for road applications. Includes Shifter, Housing, Caliper, and Resin Pads. Disc Rotor sold separately.

Weight: 252 grams
11-speed compatible

Model Number
Item Code
Shimano Dura-Ace 9120 Mechanical Disc Brake Rear Right


One coupon per order

Discount taken off MSRP for normal items

Custom kit pricing is complicated so we take the discount off the current build price

In stock items only

Coupons can not be combined with promotional gift certificates, however, purchased gift certificates may be used with the coupons. If you would like to use your coupon with a purchased gift certificate, please leave the gift certificate information in the comments section at checkout, and they will be applied during processing on the backend.

Some items are restricted

Groupsets, hand built wheels, special orders & labor costs are excluded from the coupon.

Additional exclusions may apply.


Backorder Policy

  • “Available for backorder” items typically ship from the Colorado Cyclist in 5-10 business days.
  • If an item is going to take longer than 2 weeks to ship from the Colorado Cyclist, we will reach out via email or phone with an estimated shipping time frame.
  • If an item is no longer available, we will reach out via email or phone to alert you that we are canceling the order.
  • Orders that include “available for backorder” items will not be charged until everything is in stock and ready to ship.
  • If you are purchasing both “in stock” & “available for backorder” items, please note that nothing will ship until we have all the items at the Colorado Cyclist facility. If you wish to have “in stock” items ship immediately, please place separate orders. All applicable shipping charges will apply.