The Hollow Drive Shafts (Japanese: 中空シャフト, Chūkū Shafuto) is a series of Grade-up Parts released by Tamiya since 1992.
The hollow drive shafts has the center material removed to reduce the overall weight of the driveshafts.
Although it has less weight than the normal driveshafts, the hollow structure of the hollow shaft presents a problem: Since it was connected to the wheels, it tend to bend under heavy land impacts. This problem is more apparent with the now-discontinued 60mm Hard Hollow Drive Shaft, which has thinner structure than the other hollow driveshafts.
- 72mm Hollow Stainless Steel Shaft at Tamiya Japan
- 60mm Hollow Stainless Steel Shaft (Limited II) at Tamiya Japan
- 60mm Hollow Stainless Steel Shaft (Regular) at Tamiya Japan