Big Bear Choppers Athena Chopper Carb | BMW R 12 |
---|
engine specs | |
Type | |
---|---|
BBC-S&S V111 Carb Evolution | Water-cooled, 2-cylinder, four-stroke boxer engine with four valves per cylinder operated by cam followers and two overhead camshafts per cylinder |
Displacement | |
1819 cm3 | 1170 cm3 |
Bore X Stroke | |
4.1x4.1 in OR 104 mm | 4.0x2.9 in OR 102 mm |
Horsepower | |
- | 95/6500 KW(hp)/RPM |
Torque | |
123/- lb-ft/RPM OR 167/- Nm/RPM | 81/6000 lb-ft/RPM OR 110/6000 Nm/RPM |
Fuel System | |
S&S Super E carburetor | - |
transmission specs | |
Gearbox | |
---|---|
6-speed, overdrive, manual | 6-speed |
Clutch | |
wet multi-disc, manual | - |
Primary Drive | |
BBC enclosed belt | - |
Final Drive | |
RSD belt | Shaft |
chassis specs | |
Frame | |
---|---|
steel | Tubular space frame in steel, engine self-supporting |
Front Suspension | |
BBC Smooth Mount Hidden Axle | USD telescopic forks, 45 mm |
Rear Suspension | |
progressive shock absorber | Aluminium Paralever swinging arm, directly linked WAD spring strut, spring base and rebound damping adjustable |
Front Brake | |
P.M. 4-piston caliper | Twin disc brake, floating brake discs, 310 mm, 4-piston monobloc fixed calipers |
Rear Brake | |
BBC-P.M. 4-piston caliper | Single disc brake, 265 mm, 2-piston floating caliper |
dimension specs | |
Overall Length | |
---|---|
115 in OR 2921 mm | 86.6 in OR 2200 mm |
Overall Width | |
- | 32.7 in OR 831 mm |
Seat Height | |
20 in OR 508 mm | 29.7 in OR 754 mm |
Weight | |
700 lbs OR 318 kg | 500 lbs OR 227 kg |
Fuel Capacity | |
4.4 gallons OR 16.7 L | 3.7 gallons OR 14.0 L |
Wheelbase | |
88 in OR 2235 mm | 59.8 in OR 1519 mm |
tyres specs | |
Front | |
---|---|
Avon Cobra 90mm | 100/90-19 |
Rear | |
Avon Cobra 300mm | 150/80-16 |
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