Brakes, Wheel Assemblies, and Tires tips

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Filed Under (Tips and Review) by admin on 09-02-2012

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BRAKING SYSTEMS The braking systems used on motorcycles and ATVs, like virtually any type of braking system, reduce the machine’skineticenergyby transforming it into heat energy known as friction heat . Therefore, a brake is an energy-conversion device that converts the energy of motion (kinetic energy) into heat energy. Motorcycle braking is accomplished by the friction (resistance to movement) produced when a brake lining is forced against a rotating drum or disc. Friction between the linings and drum or disc serve to slow and eventually stop wheel rotation. The brakes used on motorcycles fall into two categories: Mechanical drum, sometimes called expanding shoe Hydraulic disc Motorcycle brakes commonly use either hydraulic (fluid pressure) or mechanical (cable or linkage) mechanisms to apply the brakes. Brakes, Wheel Assemblies, and Tires 1 Mechanical Drum Brakes First, let’slookatthedrum brake, sometimes called the mechanical, expanding double-shoe brake ( Figure 1 ). Generally used for rear wheels, this brake is also used on some front wheels. With this kind of brake, a backing plate that’sconnectedtothe forks holds the two brake shoes. The wheel and brake drum rotate around the brake shoes. When the rider applies the brake, a cam pushes the two semicircular shoes outward. The circle formed by the two shoes expands. When the shoes expand, they press against the rotating drum, thereby limiting its free rotation

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2009 HONDA CBF1000 Specifications/ Press Information

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Filed Under (Honda) by admin on 18-02-2011

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Specifications General Model CBF1000 Mold Type ED-type Engine Type Liquid-cooled 4-stroke 16-valve DOHC inline-4 Displacement 998cm³ Bore x Stroke 75 x 56.5mm Compression Ratio 11 : 1 Max. Power Output 72kW / 8,000min-1 (95/1/EC) Max. Torque 93Nm / 6,500min-1 (95/1/EC) Idling Speed 1,200min-1 Oil Capacity 3.6 litres Fuel System Carburation PGM-FI electronic fuel injection Throttle Bore 36mm Aircleaner Dry, cartridge-type paper filter Fuel Tank Capacity 19 litres (including 4-litre reserve) Electrical System Ignition System Computer-controlled digital transistorised with electronic advance Ignition Timing 5° BTDC (idle) ~ 45° BTDC (7,500min-1) Sparkplug Type NGK: CR8EH-9; ND: U24FER9 Starter Electric Battery Capacity 12V / 8.6AH ACG Output 330W Headlights 12V, 55W x 1 (low) / 55W x 2 (high) Drivetrain Clutch Wet, multiplate with coil springs Clutch Operation Hydraulic Transmission 6-speed Primary Reduction 1.604 (77/48) Gear Ratios 1 2.714 (38/14) 2 1.941 (33/17) 3 1.579 (30/19) 4 1.363 (30/22) 5 1.217 (28/23) 6 1.115 (29/26) Final Reduction 2.687 (43/16) Final Drive #530 O-ring sealed chain Frame Type Mono-backbone; rectangular-section steel tube Chassis Dimensions (LxWxH) 2,156 x 781 x 1,138mm Wheelbase 1,480mm Caster Angle 26° Trail 110mm Turning Radius 2.8m Seat Height 795mm (±15mm) Ground Clearance 130mm Kerb Weight 242kg (F: 118kg; R: 124kg), *250kg (F: 120kg; R: 130kg) Max. Carrying Capacity 195kg Loaded Weight 437kg , *445kg Suspension Type Front 41mm cartridge-type telescopic fork, 120mm axle travel Rear Pro-Link with gas-charged HMAS damper, 120mm axle travel Wheels Type FrontHollow-section 6-spoke cast aluminium RearHollow-section 6-spoke cast aluminium Rim Size Front17M/C x MT3.50 Rear17M/C x MT5.00 Tyre Size Front120/70 ZR17M/C (58W) Rear160/60 ZR17M/C (69W) Tyre Pressure Front 250kPa Rear 290kPa Brakes Type Front 296 x 4.5mm dual hydraulic disc with 4-piston (*Combined 3-piston) calipers, floating rotors (*ABS) and sintered metal pads Rear 240 x 6mm hydraulic disc with single-piston (*3-piston) caliper (*ABS) and sintered metal pads

2007 HONDA CRF450X Specifications / PRESS INFORMATION

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Filed Under (Honda) by admin on 18-02-2011

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Specifications CRF450X ED-type Engine Type Liquid-cooled 4-stroke 4-valve SOHC single Displacement 449cm³ Bore x Stroke 96 x 62mm Compression Ratio 12 : 1 Max. Power Output 36.2kW / 7,500min-1 (95/1/EC) Max. Torque 46.8Nm / 7,000min-1 (95/1/EC) Fuel System Carburation 40mm Keihin FCR flat-slide carburettor with throttle position sensor (TPS) Fuel Tank Capacity 8.3 litres Electrical System Ignition System Computer-controlled digital capacitor discharge with electronic advance and lighting coil Starter Electric / Primary kick Drivetrain Transmission 5-speed Primary Reduction 2.739 (63/23) Gear Ratio 1 2.231 (29/13) 2 1.625 (26/16) 3 1.235 (21/17) 4 1.000 (19/19) 5 0.826 (19/23) Final Reduction 3.923 (51/13) Final Drive #520 T-ring sealed chain Frame Type Semi-double cradle; aluminium twin-spar Chassis Dimensions (LxWxH) 2,176 x 825 x 1,254mm Wheelbase 1,478mm Caster Angle 27° 17′ Trail 112.8mm Seat Height 963mm Ground Clearance 348mm Dry Weight 115.7kg Kerb Weight 122.6kg 8/9 Suspension Type Front47mm Showa inverted leading-axle twin-chamber cartridge-type telescopic fork with 16-step adjustable compression and rebound damping; 315mm axle travel RearPro-Link with Showa damper, adjustable low-speed (13- step) & high-speed (3.5-turn) compression and 17-step rebound damping; 315mm axle travel Wheels Type FrontAluminium rim/wire spoke RearAluminium rim/wire spoke Rim Size Front21 x 1.6 Rear18 x 2.15 Tyre Size Front80/100 21 (51M) Rear110/100 18 (62M) Brakes Type Front240 x 3mm hydraulic disc with dual-piston calliper and sintered metal pads Rear240 x 4mm hydraulic disc with single-piston calliper and sintered metal pads

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