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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2011 HONDA CRF250X Specifications

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

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Specifications CRF250X (ED-type) ENGINE Type Liquid-cooled 4-stroke 4-valve SOHC single Displacement 249cm 3 Bore  Stroke 78  52.2mm Compression Ratio 12.9 : 1 Max. Power Output 21.9kW/9,000min -1 (95/1/EC) Max. Torque 24.2kW/8,000min -1 (95/1/EC) FUEL SYSTEM Carburation 37mm Keihin FCR flat slide carburettor with throttle position sensor (TPS) Fuel Tank Capacity 7.3 litres (including 1.6-litre reserve) 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 3.611 (65/18) Gear Ratios 1 2.384 (31/13) 2 1.750 (28/16) 3 1.333 (28/21) 4 1.041 (25/24) 5 0.814 (22/27) Final Reduction 3.786 (53/14) Final Drive #520 T-ring roller chain FRAME Type Semi-double cradle; aluminium twin-spar CHASSIS Dimensions (LxWxH) 2,174 x 827 x 1,261mm Wheelbase 1,481mm Caster Angle 27˚ 54′ Trail 118mm Seat Height 958mm Press information for 2011 CRF250X 3 EU-EN Ground Clearance 346mm Kerb Weight 115kg SUSPENSION Type Front 47mm inverted Showa leading-axle twin- chamber cartridge-type telescopic fork with 16-step adjustable compression and rebound damping; 280mm axle travel Rear Pro-Link with single Showa damper, adjustable low-speed (13-step) & high-speed (3.5-turn) compression and 17-step rebound damping; 313mm axle travel WHEELS Type Front Aluminium rim/wire spoke Rear Aluminium rim/wire spoke Rim Size Front 21 x 1.60 Rear 18 x 2.15 Tyre Size Front 90/90-21 M/C 54R Rear 120/90-18 M/C 65R BRAKES Type Front 240  3mm hydraulic disc with dual-piston caliper and sintered metal pads Rear 240  4mm hydraulic disc with single-piston caliper and sintered metal pads

Aermacchi IHRO1 Machine Specifications

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Filed Under (Aermacchi) by admin on 13-11-2010

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1. IHRO 1 caters for single cylinder thoroughbred Grand Prix racing motorcycles constructed during the period 1945-1972 inclusive, for the specific purpose of participation in Grand Prix competition during that era. Maximum capacity for any machine is 500cc, and wherever possible it is intended to run three classes, for machines up to 250cc, 350cc and 500cc. 2. Motorcycles must be presented in original, period condition, with no external updating. Period appearance seats, fuel tanks and fairings (if fitted) must be used. No external changes may be made to the appearance of any machine unless it can be proved that such a change was made in the period. Modern safety fixtures required by some federations and modifications mentioned in this document are not covered by this ruling. 3. No disc brakes are allowed. Drum brakes only may be used. 4. No alloy/magnesium wheels are allowed. Wire wheels only may be used. 5. All machines must have twin shock rear suspension: No monoshocks except Vincent Grey Flash. Suspension units must resemble period components, i.e. no external gas reservoirs etc. 6. All frames and swinging arms must conform exactly to period appearance; no box section swinging arms allowed unless fitted by the manufacturer to that machine in the period. 7. The maximum permitted rim width on either wheel is WM3. 8. No slick tyres, hand cut slicks or modern racing tyres designated by the manufacturer as being exclusively for wet weather use are permitted. Only the following rear tyres may be fitted. Any 19″ tyre. The following 18″ tyres, Dunlop 3.50×18, 3.50/3.25×18 KR124 and KR124A, Avon AM22 110/80×18 Rear Fitment and Avon AM18 120×18 9. Choice of carburettor is free, provided that this is of a period type cylindrical slide model, albeit of a later manufacture. Flat slide instruments are not permitted with the exception of Gardner carburettors. Fuel injection is not permitted except if it can be proved that particular motorcycle ran between 1945-72 with the same type of injection system fitted. A Wal Philips injector is classified under this heading. 10. The type of fuel used must conform to the ACU and FIM’s current fuel regulations for 100LL Avgas at 102 MON. See full specifications below. All machines must finish a race with a minimum of 2 litres of fuel in the tank to allow a sample to be taken for analysis. 11. The use of belt primary drives is encouraged.

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