JENAL - Benelli ~ Differences Between Benelli 750 & 900 Sei Frames

 

750 Sei

900 Sei

Rear shock mount centre to swing arm mount centre

334mm

294mm

Headstock centre to swing arm mount centre

492mm

462mm

Swing arm centre mount to rear end of frame

568mm

568mm

Swing arm centre mount to base of frame

159.5mm

139.5mm

Headstock depth

160mm

212.5mm

Headstock angle

28-30deg

28-30deg

Wheelbase

1430mm

1460mm

Conclusions to be drawn: the frames look identical (excluding minor bracketry differences) and their overall dimensions are similar but some of the detail is different.  The 900s wheelbase is 30mm longer although the swing arms are the same length, the extra wheelbase coming from 10mm longer fork length.

The swing arm mount is 30mm higher in the frame in effect lowering the bike.  These combination of changes were to accommodate the near vertically mounted 900 engine (the 750s lent further forward) and improve the bikes overall comfort and handling.

Other obvious key differences between the two models

 

750 Sei

900 Sei

Engine bore x stroke

56 x 50.6

60 x 53.4

BHP

71

80

Max RPM

8900

8400

Gearbox/rear wheel ratio

1:2470

1:2454

Wheelbase

1.430m (56)

1.460m (57.4)

Overall length

2.120m (83.4)

2.110m (83.07)

Overall height

1.080m (42.5)

1.130m (44.48)

Fuel capacity

23ltr

16.50ltr (3.63gal)

Wheel sizes are the same as are gear ratios, overall weight, etc.

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