VELOCETTE MAC | ARCH MOTORCYCLE 1S |
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engine specs | |
Type | |
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Single cylinder, OHV, 4-stroke, air-cooled | S&S Cycle T124 45-degree downdraft fuel-injected V-Twin engine |
Displacement | |
349 cm3 | 2032 cm3 |
Bore X Stroke | |
2.7x3.8 in OR 69 mm | - |
Compression Ratio | |
6.75:1 | - |
Horsepower | |
15/6300 KW(hp)/RPM | - |
Torque | |
- | 115.3/- lb-ft/RPM OR 156/- Nm/RPM |
Fuel System | |
Carburetor | EFI |
transmission specs | |
Gearbox | |
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4-Speed | 6-speed |
Clutch | |
Three-plate | Compact dry clutch |
Final Drive | |
Chain | Chain |
chassis specs | |
Frame | |
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Single top and front down tubes and twin tube cradle | Tubular steel frame with CNC-machined aluminum subframe single-sided swingarm |
Front Suspension | |
Pre war: Webb girder style - Post war: Air-sprung Dowty Oleomatic forks | Fully adjustable ARCH/Öhlins FGRT series fork |
Rear Suspension | |
Hydraulic shocks | Fully adjustable ARCH/Öhlins rear shock with reservoir and hydraulic pre-load adjustment |
Front Brake | |
Drum | Dual ISR 6-piston monobloc radial mount calipers with ISR floating dampened discs |
Rear Brake | |
Drum | Single ISR 4-piston monobloc radial mount caliper with ISR semi-floating disc |
dimension specs | |
Seat Height | |
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27.6 in OR 701 mm | 31.5 in OR 800 mm |
Weelbase | |
50.2 in OR 1275 mm | - |
Weight | |
375 lbs OR 170 kg | 563 lbs OR 255 kg |
Fuel Capacity | |
3 gallons OR 11.4 L | 4.5 gallons OR 17.0 L |
Wheelbase | |
50.2 in OR 1275 mm | 65.4 in OR 1661 mm |
tyres specs | |
Front | |
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3.25 x 19" | 120/70-17 Michelin Power RS |
Rear | |
3.25 x 19" | 240/45-17 Michelin Power RS |