MST Steel Center Shaft 4 X 21: Upgrade Your Ride!

Looking to beef up your MST RMX 2.0? These MST 310119 steel center shafts are the perfect upgrade! Forget flimsy, these are the real deal. Get ready for increased durability and performance.

Built to last! Steel construction means these shafts can handle whatever you throw at them.

Improved power transfer for a smoother, more responsive drive.

These 4x21 shafts are direct replacements for the 210642R/BK aluminum spur gearbox set. Each package includes two shafts, so you're good to go!

Don't miss out! Shop online now for the best deals on MST steel center shafts. Upgrade your ride today!

Get the gear you need and experience the difference. Click here to shop now!