Triumph Rocket 3 GT 2021 - Page 80

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Pistons
Cylinder Bore Diameter
110.185 - 110.203 mm (standard)
110.293 mm (service limit)
Piston Diameter (at 90° to gudgeon pin)
110.17 - 110.18 mm (@ 42 mm down
from crown) (standard) (standard)
110.13 mm (service limit)
Piston Ring to Groove Clearances
Top
0.02-0.06 mm (standard) (standard)
0.075 mm (service limit) (service limit)
Second
0.02-0.06 mm (standard) (standard)
0.075 mm (service limit) (service limit)
Piston Ring End Gaps
Top
0.25 -0.4 mm (standard) (standard)
0.52 mm (service limit) (service limit)
Second
0.4 -0.55 mm (standard) (standard)
0.67 mm (service limit) (service limit)
Oil
0.2-0.7 mm (standard) (standard)
0.84 mm (service limit) (service limit)
Gudgeon Pin Bore Diameter in Piston
25.004 - 25.012 mm (standard) (standard)
25.04 mm (service limit) (service limit)
Gudgeon Pin Diameter
24.992 - 25.000 mm (standard) (standard)
24.982 mm (service limit) (service limit)