Buell / EBR Buell XB12R Firebolt (2009) vs Yamaha RD 350RR (1984) vs Yamaha WR 250R (2019-20)
Comparison technical specifications
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| Make: | Buell / EBR | Yamaha | Yamaha |
| Model: | Buell XB12R Firebolt | RD 350RR | WR 250R |
| Years: | 2009 | 1984 | 2019-20 |
| Engine: | 45° V-Twin, four stroke, pushrod actuated overhead valve. hydraulic self-adjusting lifters, 2 valve per cylinder. | Two stroke, parallel twin cylinder, YPVS | Four stroke, single cylinder, DOHC, 4 valve |
| Capacity: | 1203 cc / 73 cu in | 347 cc / 21.1 cu-in | 249 cc / 15.2 cub in. |
| Bore x Stroke: | 88.9 x 96.8 mm | 64 х 54 mm | 77 x 53.6 mm |
| Compression Ratio: | 10.0:1 | 6.2 :1 | 11.8:1 |
| Cooling System: | Air cooled | Liquid cooled | Liquid cooled |
| Induction: | Ø49 mm downdraft DDFI II fuel injection | 2x 26mm Mikuni slide-needle carburetor | Electronic fuel injection |
| Starting: | Electric | Kick | Electric |
| Transmission: | 5 Speed | 6 Speed | 6 Speed, constant mesh |
| Final Drive: | Belt | Chain | Chain |
| Front Suspension: | Showa Ø43 mm inverted forks compression damping, rebound damping and spring preload adjustable | 35mm Telescopic forks air assistance and variable damping | Inverted 46 mm fork, adjustable |
| Front Wheel Travel: | 120 mm / 4.7" | 140 mm / 5.5 in | 269 mm / 10.6 in. |
| Rear Suspension: | Showa coil-over monoshock, remote underseat reservoir and adjustable compression damping, rebound damping and spring preload, 127mm wheel travel | Rising rate Monocross 5-way preload | Swingarm, single shock, 46 mm, adjustable |
| Rear Wheel Travel: | 127 mm / 5.0" | 100 mm / 3.9 in | 269 mm / 10.6 in. |
| Front Brakes: | ZTL type brake, 6 piston, fixed caliper, Ø375 mm single-sided, inside out, stainless steel, floating rotor | 2x 260mm disc 2 piston calipers | Hydraulic, single disc, 250 mm Ø |
| Rear Brakes: | Single Ø240 mm disc, 1 piston floating caliper | Single 260mm disc 1 piston caliper | Hydraulic, single disc, 230 mm Ø |
| Front Tyre: | 120/70 ZR17, Pirelli Diablo | 90/90-18 51H | 80/100 -21 |
| Rear Tyre: | 180/55 ZR17 Pirelli Diablo | 110/80-18 58H | 120/80 -18 |
| Dimensions: | Length: 1924 mm / 75.7" Width: 768 mm / 30.2" Height: 1092 mm / 43.0" | Length 2095 mm / 82.4 in Width 700 mm / 27.5 in Height 1190 mm / 46.8 in | Length: 2174 mm / 85.6 in Width: 810 mm / 31.9 in Height: 1229 mm / 48.4 in |
| Wheelbase: | 1320 mm / 52.0" | 1385 mm / 54.5 in | 1420 mm . 55.9 in. |
| Ground Clearance: | 127 mm / 5.0" | 165 mm / 6.4 in | 300 mm / 11.8 in. |
| Seat Height: | 775 mm / 30.5" | 790 mm / 31.1 in | 930 mm / 36.6 in |
| Fuel Capacity: | 14 L / 3.7 US gal | 17 Litres / 4.5 US gal | 7.6 Litres / 2 US gal |