Standard XV-01: 42 front and 39mm rear, this is for the CVDs
XV-01 TC Pro: 44mm on front and rear.
Originally Posted by
gridMENSCH
Are the front and rear axles identical? I snapped a rear axle and thought I'd buy spares all round, but can only find 51313 'XV-01 Rear Axle'. Searching for front axles gets me only hits for the CVDs.