Axial have released a number of new items for their XR10 crawler, beginning with these machined gears:
Precision CNC machined, the complete set of machined gears will reduce your internal rotating mass by over 15%. It will also increase strength and efficiency. They have also released precision CNC machined titanium gear shafts, which not only increase strength and efficiency but help reduced the internal rotating mass by 40% over the stock Axial XR10 steel gear shafts. Sounds like some pretty good products to increase the performance of your RC.
Below is a picture of the gear shafts: