YAMAHA YZ250 | ARCH MOTORCYCLE 1S |
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engine specs | |
Type | |
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liquid-cooled, reed valve-inducted, 2-stroke | S&S Cycle T124 45-degree downdraft fuel-injected V-Twin engine |
Displacement | |
249 cm3 | 2032 cm3 |
Bore X Stroke | |
2.6x2.8 in OR 66 mm | - |
Compression Ratio | |
9.0 – 10.6:1 | - |
Torque | |
- | 115.3/- lb-ft/RPM OR 156/- Nm/RPM |
Fuel System | |
38mm Keihin PWK w/power jet & throttle position sensor | EFI |
transmission specs | |
Gearbox | |
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5 speed, manual | 6-speed |
Clutch | |
Multiplate wet clutch | Compact dry clutch |
Final Drive | |
#520 O-ring chain | Chain |
chassis specs | |
Frame | |
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Steel | Tubular steel frame with CNC-machined aluminum subframe single-sided swingarm |
Front Suspension | |
46mm Kayaba inverted telescopic fork w/adjustable compression and rebound damping 11.8 " travel | Fully adjustable ARCH/Öhlins FGRT series fork |
Rear Suspension | |
Fully adjustable Kayaba single shock, 12.4" travel separate hi/lo speed compression adjustment | Fully adjustable ARCH/Öhlins rear shock with reservoir and hydraulic pre-load adjustment |
Front Brake | |
250mm floating disc | Dual ISR 6-piston monobloc radial mount calipers with ISR floating dampened discs |
Rear Brake | |
245mm disc | Single ISR 4-piston monobloc radial mount caliper with ISR semi-floating disc |
dimension specs | |
Overall Length | |
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85.9 in OR 2182 mm | - |
Overall Width | |
32.6 in OR 828 mm | - |
Seat Height | |
39 in OR 991 mm | 31.5 in OR 800 mm |
Ground Clearance | |
15.6 in OR 396 mm | - |
Weight | |
214 lbs OR 97 kg | 563 lbs OR 255 kg |
Fuel Capacity | |
2.1 gallons OR 7.9 L | 4.5 gallons OR 17.0 L |
Wheelbase | |
58.3 in OR 1481 mm | 65.4 in OR 1661 mm |
tyres specs | |
Front | |
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80/100-21 Dunlop | 120/70-17 Michelin Power RS |
Rear | |
110/90-19 Dunlop | 240/45-17 Michelin Power RS |