Gregory Bender

Fork dimension comparison - drum vs. disc

Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models

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Here are some key measurement comparisons that you may find useful.

Description of measurement Drum brake fork Disc brake fork
Fork shroud length 352 mm 375 mm
Distance from top of fork shroud to top of triple tree (where the tube sticks up through) 34 mm 34 mm
Fork lower length (center of axle to top of fork lower) 358 mm 343 mm
Fork tube length (tube only) 575 mm 580 mm
Damper length (original disc brake damper) Not applicable 379 mm
Fork length (center of axle to top of fully extended fork tube) 727 mm 738 mm
Shroud coverage (fork length - fork lower length - distance from top of fork shroud to top of triple tree - fork shroud length) -17 mm -12 mm