Spec-R MF-01X aluminium diff gear cross shafts
Spec-R have an aluminium diff gear cross shaft set for the Tamiya MF-01X available. Made from high-quality material and coming blue anodised the shafts weigh in at only 6.7g compared to the 19.6g of the original steel shafts. This greatly reduces the rotational mass of the drivetrain for quicker spool up, improved braking and longer run times.
Source: Spec-R [spec-r.com]