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T120R Bonneville Engine type Displacement Bore & Stroke Compression Carburetors Ignition Engine output Primary drive Primary sprockets Clutch Gearbox, standard Ratios, overall: 1st, bottom 2nd 3rd 4th, top Gearbox, optional Final drive Final drive sprockets Frame type Suspension, front Suspension, rear Brake, front Brake, rear Tire, front Tire, rear Fuel capacity Wheelbase Seat height Ground clearance Weight |
Roadster Air-cooled OHV vertical
twin 649cc / 40.0 ci 71mm X 82mm /
2.79" X 3.23" 9.0:1 2- Amal Concentrics
R930/9, 30mm Battery & coil,
Lucas/ Boyer Electronic Ignition 49 bhp @ 6200 rpm 3/8" triplex X 84
links Engine 29T X Clutch 58T Multi-plate, wet 4-speed constant-mesh,
right-foot shift
11.8:1 8.17:1 6.76:1 5.84:1 5-speed constant-mesh,
right-foot shift 5/5" X .400"
X 3/8" chain X 106 links Gearbox 19T X Rear 47T All-welded, oil-bearing
large-tube backbone Telescopic fork,
hydraulic damping 2-way Swing arm, 2 Girling
dampers 8" TLS drum,
conical hub 7" SLS drum, conical
hub 3.25" X 19"
Dunlop 4.00" X 18"
Dunlop 3 Imp gal (US) / 4 Imp
gal (UK & export) 56" / 142 cm 34" / 87.5 cm 7" / 18 cm 395 lbs/ 179 kg
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