Yamaha SRX 600 (1985-86) vs Yamaha XSR 155 (2019) vs KTM RC 390 (2016) vs Zero DS (2015)
Comparison technical specifications
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| Make: | Yamaha | Yamaha | KTM | Zero |
| Model: | SRX 600 | XSR 155 | RC 390 | DS |
| Years: | 1985-86 | 2019 | 2016 | 2015 |
| Max Power: | 45 hp / 34 kW @ 6500 rpm | 14.1 kW / 19 hp @ 10000 rpm | 32 kW / 43 hp @ 9500 rpm | 40 kW / 54 hp @ 4300 rpm |
| Max Torque: | 4.9 kgf-m / 34 lb-ft / 46 Nm @ 5500 rpm | 14.7 Nm / 40.8 lb-ft @ 8500 rpm | 3.6 kgm /35.3 Nm @7250rpm | 92 Nm / 7.3 kgf-m / 68 ft-lb |
| Transmission: | 5 Speed | 6 Speed slip-and-assist clutch | 5 Speed | Clutchless direct drive |
| Final Drive: | Chain | Chain | Chain 5/8 x 1/4” X‑Ring | 132T / 28T, Poly Chain GT Carbon Belt |
| Front Suspension: | 36mm Telescopic forks | Upside-down Telescopic fork | WP Suspension Up Side Down | Showa 41 mm inverted cartridge forks, with adjustable preload, compression and rebound damping |
| Rear Suspension: | Dual Kayaba shocks 5-way adjustable for preload | Monoshock operating on a die-cast aluminium swingarm | WP Monoshock | Showa 40 mm piston, piggy-back reservoir shock with adjustable spring preload, compression and rebound damping |
| Front Brakes: | 2x 267mm disc | Single 282mm disc 2 piston caliper, ABS | Single 300 mm disc 4 piston radial caliper | Bosch Gen 9 ABS, J-Juan asymmetric dual piston floating caliper, Single 320 x 5 mm disc |
| Rear Brakes: | Single 240mm disc | Single 240mm disc 1 piston caliper, ABS | Single 230 mm disc 1 piston caliper | Bosch Gen 9 ABS, J-Juan single piston floating caliper, Single 240 x 4.5 mm disc |
| Front Tyre: | 110/70-17 | 110/70 -17 | 110/70 R17 | Pirelli MT-60 100/90-19 |
| Rear Tyre: | 150/60-17 | 140/70 -17 | 150/60 R17 | Pirelli MT-60 130/80-17 |
| Wheelbase: | 1380 mm / 54.3 in | 1330 mm / 52.3 in | 1340 mm / 52.7 in | 1427 mm / 56.2 in |
| Seat Height: | 770 mm / 20.3 in | 810 mm / 31.8 in | 820 mm / 32.2 in | 843 mm / 33.2 in |