APRILIA DORSODURO FACTORY ABS 2011 Service Station Manual page 53

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys.
DORSODURO FACTORY ABS
Crankcase - crankshaft - connecting rod
INTERNAL MARKING ON FIRST GENERATION CRANKCASES
Crankcases are classified in two classes (1 or 2) depending on the diameter of the main bearing seat.
The class is indicated on both crankcase halves, specifically, in the rear cylinder area on flywheel side
crankcase halves and in the front cylinder area on clutch side crankcase halves.
Crankcase class 1
Crankcase class 2
INTERNAL MARKING ON SECOND GENERATION CRANKCASES
Crankcases are classified in two classes (1 or 2) depending on the diameter of the main bearing seat.
The class is indicated on both crankcase halves, specifically, in the starter gear area on flywheel side
crankcase halves and in the gearbox control mechanism area on clutch side crankcase halves.
See also
Removing the flywheel cover
email: info@motomatrix.co.uk
C
RANKCASE CLASSES
Specification Desc./Quantity
Bushing seat diameter: 53.954 - 53.960 mm (2.1241 - 2.1244
in)
Bushing seat diameter: 53.960 - 53.966 mm (2.1244 - 2.1246
in)
Characteristics
CHAR - 53