All-New Rear Derailleur

The new hangerless, Full Mount rear derailleur ensures your gear is as durable and performance-focused as possible. Not only does the design deliver the shifting quality of the MTB Transmission lineup, but it also gives you more peace of mind that your premium gear will have a better chance in air transit and tumbles off-road. Also adopted from Transmission’s elite tier is the Magic Wheel, which keeps your pulley wheel gliding even if its inner body seizes. Your bike must be UDH-compatible, and the derailleur is made specifically for the new XPLR cassette below.

13-Spd 10–46t Cassette

We all love tighter gear jumps and added range when tackling the unknown off-road. With this new XPLR cassette, we’ve got the 12t cog for smoother transitions down the cassette, and the max cog now sits at 46t to boost range to 460%. SRAM has also shaved 88g off the design compared to the previous top-tier XPLR cassette, for weight savings you’ll likely notice once it’s installed on your ride.

Thread Mount Chainrings & Power Meter

When you run 1x, you might need to change your chainring for different terrains. SRAM’s new Thread Mount design—used with Red XPLR AXS power meter spider—makes that easier than ever, letting you do more DIY servicing to get the gears you need for any ride. Now you can swap between 38–46t rings (just pick up SRAM’s Thread Mount chainring tool).