| General |
| Colours | Team Yamaha Blue | Orange/white/grey |
| Warranty | 30 Day Limited Factory Warranty | - |
| Dimensions |
| Length (mm) | 2136 mm | - |
| Length (in.) | 84.1 inches | - |
| Height (mm) | 1295 mm | - |
| Ground Clearance (mm) | 366 mm | 343 mm |
| Ground Clearance (in.) | 14.4 inches | 13.5 inches |
| Height (in.) | 51.0 inches | - |
| Seat Height (mm) | 39 mm | 958 mm |
| Wheelbase (in.) | 56.9 inches | 58.5 inches |
| Wheelbase (mm) | 1445 mm | 1485 mm |
| Width (in.) | 32.5 inches | - |
| Width (mm) | 826 mm | - |
| Seat Height (in.) | 1.5 inches | 37.7 inches |
| Seat Height | 39 mm / 1.5 in. | 958 mm / 37.7 in. |
| Wheelbase | 1445 mm / 56.9 in. | 1485 mm / 58.5 in. |
| Height | 1295 mm / 51.0 in. | - |
| Length | 2136 mm / 84.1 in. | - |
| Width | 826 mm / 32.5 in. | - |
| Weights & Capacities |
| Fuel Capacity (gal.) | 1.80 US gallons | 1.90 US gallons |
| Fuel Capacity (l) | 6.81 litres | 7.20 litres |
| Oil Capacity (l) | 0.70 litres | - |
| Wet Weight (kg) | 94.8 kg | - |
| Dry Weight (kg) | - | 102.6 |
| Oil Capacity (Quarts) | 0.74 US quarts | - |
| Dry Weight (lbs.) | - | 226.2 pounds |
| Wet Weight (lbs.) | 209.0 pounds | - |
| Dry Weight | - | 102.6 kg / 226.2 lbs |
| Fuel Capacity | 6.81 litres / 1.80 US gallons | 7.20 litres / 1.90 US gallons |
| Wet Weight | 94.8 kg / 209.0 lbs | - |
| Performance |
| Mods from previous model | Redesigned engine. | - |
| Power-to-Weight Ratio | - | 0.6140 HP/kg |
| Engine |
| Bore x Stroke (in,) | 2.1 x 2.1 inches | 3.7 x 2.5 inches |
| Bore x Stroke (mm) | 54.0 x 54.5 mm | 95.0 x 63.4 mm |
| Displacement (cc) | 125.0 cc | 449.9 cc |
| Engine Type | Single cylinder, two-stroke | Single cylinder, four-stroke |
| Stroke | - | 4-stroke |
| Fuel Control | - | Single Overhead Cams (SOHC) |
| Displacement (ci) | 7.63 cubic inches | 27.45 cubic inches |
| Engine Detail | Reed-valve-inducted | - |
| Fuel System | Carburettor. Keihin PWK38S | Injection |
| Compression Ratio | 10.7:1 | - |
| Engine Lubrication | Premix | - |
| Ignition | Digital CDI | Keihin EMS |
| Spark Plug | NGK BR9EVX, NGK BR9EIX | - |
| Starter | Kick | Electric |
| Drivetrain |
| Clutch | Multiplate wet clutch | Wet, DDS multi-disc clutch, Brembo hydraulics |
| Final Drive | Chain (final drive) | Chain (final drive) |
| Gearbox | 6-speed | 5-speed |
| Primary Drive | Constant-mesh | X-ring 5/8 x 1/4 chain |
| Chassis |
| Trail (in.) | 4.3 inches | - |
| Fork Tube Size (in.) | 1.9 inches | - |
| Wheel Travel - Front (in.) | 11.8 inches | 12.2 inches |
| Wheel Travel - Front (mm) | 300 mm | 310 mm |
| Wheel Travel - Rear (in.) | 12.4 inches | 11.8 inches |
| Wheel Travel - Rear (mm) | 315 mm | 300 mm |
| Trail (mm) | 109 mm | - |
| Fork Tube Size (mm) | 48 mm | - |
| Frame Type | Aluminum semi-double cradle | Central double-cradle-type 25CrMo4 steel |
| Suspension - Front | KYB® Speed-Sensitive System inverted fork; fully adjustable | WP XACT-USD, Ø 48 mm |
| Suspension - Rear | KYB® single shock; fully adjustable | WP XACT Monoshock with linkage |
| Rake | 26.0° | 26.1° |
| Trail | 109 mm / 4.3 in. | - |
| Wheel Travel - Front | 300 mm / 11.8 in. | 310 mm / 12.2 in. |
| Wheel Travel - Rear | 315 mm / 12.4 in. | 300 mm / 11.8 in. |
| Wheels & Brakes |
| Brakes - Front | Single disc. Hydraulic. | Single disc. Brake calipers on floating bearings |
| Brakes - Rear | Single disc. Hydraulic. | Single disc. Brake calipers on floating bearings |
| Rims | - | CNC machined hubs. Excel rims. Wire spoked. |
| Tyre Pressure - Front | 15 PSI (1 Bar or 100 kPa) | - |
| Tyre Pressure - Rear | 15 PSI (1 Bar or 100 kPa) | - |
| Tyres - Front | 80/100-21 | 1.6-21 |