Tamiya made TRF801XT Lightweight Univ. Shaft (84041)
The lightweight of the Universal Shaft is achieved by reducing the propeller shaft diameter from 4.2mm to 3.4mm (two piece set). The weight for the standard shaft is 35g weighed against the lightweight shaft 29.5g (one shaft), a weight saving of 5.5g. This means with all four shafts assembled, you are able to conserve an overall total of 22g. The above image shows two Lightweight Assembly Universal Shafts.
