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1995 Buell S2 Thunderbolt

1995 Buell S2 Thunderbolt

 

This is the donor bike that was used as the basis for the rigid chopper seen here. Stock specifications are as follows:

Engine: Four-stroke, 45 degree Harley-Davidson V-Twin; air-cooled with pushrod actuated overhead valves; two valves per cylinder.

Displacement: 1203cc
Bore and stroke: 3.5 x 3.8 in.
Compression ratio: 9:1
Carburetor: 40 mm Keihin CV
Exhaust: Free-Breathing 2 into 1 collector
Air Cleaner: Free-Breathing, carbon fiber cover
Torque: 76 ft. Ibs.
Oil Capacity: 3.0 qts.
Oil Filtration: Screw-on disposable element

Transmission: Five-speed, constant-mesh

Ratios:
1st Gear: 2.78
2nd Gear: 2.03
3rd Gear: 1.49
4th Gear: 1.22
5th Gear: 1.000
Primary Drive: Triplex chain to wet clutch; ratio 1.6
Final Drive: Kevlar belt; ratio 2.10

Chassis:

Frame: Tubular perimeter chrome-moly with Uniplanar powertrain system
Wheelbase: 55 inches
Rake: 25°
Trail: 3.9 inches
Front Suspension: WP ROMA 4054 inverted forks with adjustable rebound and compression damping
Rear Suspension: Chrome—moly rectangular tubing swingarm; WP extension type damper with adjustable compression damping, rebound damping and spring preload
Front Wheel Travel: 4.7 inches
Rear Wheel Travel: 4.9 inches
Front Brake: 340 mm cast iron floating rotor; six piston Buell P/M caliper with braided stainless steel line
Rear Brake: 230 mm cast iron rotor; Brembo caliper
Front Wheel: Cast Marchesini, 3.5 x17
Rear Wheel: Cast Marchesini, 5.0 x17
Front Tire: Dunlop Sportmax Radial 120/70 ZR 17
Rear Tire: Dunlop Sportmax Radial 170/60 ZR 17
Fuel Capacity: 5.0 gallons (including 0.6 gallon reserve)
Mileage per EPA Test Regulations: City 45; Highway 52
Gross Vehicle Weight Rating: 850 lbs.
Dry Weight: 450 lbs.
Load Capacity: 400 lbs.
Seat Height: 29.5 inches
Ground Clearance: 5.2 inches

     
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