Aprilia SX 125 vs Yamaha WR125R: specs compared
Side-by-side specs of the Aprilia SX 125 (2026-present) and the Yamaha WR125R (2026-present), using the latest model year of each.
Key differences
- Power: Aprilia SX 125 14.8 hp, Yamaha WR125R 15 hp.
- Torque: Aprilia SX 125 11.4 Nm, Yamaha WR125R 11.3 Nm.
- Weight: Aprilia SX 125 136 kg, Yamaha WR125R 138 kg.
Key figures
Power hp
- Aprilia SX 125 (2026-present)14.8
- Yamaha WR125R (2026-present)15 (best)
Torque Nm
- Aprilia SX 125 (2026-present)11.4 (best)
- Yamaha WR125R (2026-present)11.3
Weight kg
- Aprilia SX 125 (2026-present)136 (best)
- Yamaha WR125R (2026-present)138
Full specs
| Specification |  2026-present Remove |  2026-present Remove |
|---|---|---|
| Category | Dual-sport | Dual-sport |
| Years | 2026-present | 2026-present |
| Engine | single-cylinder , 4 strokes Injection Ø 32 mm Cooling system : liquid 2 ACT 4 valves 124.20 cc 15 ch (14.80 hp) to 10,500 rpm 1.17 mkg (11.40 Nm) to 8,500 rpm | 125cc liquid-cooled single, SOHC, 4-valve, VVA |
| Cylinders | 1 | 1 |
| Displacement | 124 cc | 125 cc |
| Power | 14.8 hp @ 10,500 rpm | 15 hp @ 10,000 rpmBest |
| Torque | 11.4 Nm @ 8,500 rpmBest | 11.3 Nm @ 6,500 rpm |
| Transmission | 6 stage gearbox , manual Secondary by chain | 6-speed constant-mesh, chain final drive |
| Final drive | chain | chain |
| Weight | 136 kg (wet)Best | 138 kg (wet) |
| Seat height | 880 mm | 875 mm |
| Fuel capacity | 7 L | 8.1 LBest |
| Front suspension | Reverse telehydraulic fork Ø 41 mm, Wheel travel : 240 mm (9.45 in) | 41 mm KYB inverted fork, 215.9 mm (8.5 in) travel, preload and rebound adjustable |
| Rear suspension | Mono-damper, Wheel travel : 220 mm (8.66 in) | KYB aluminum swingarm with single shock, 185.4 mm (7.3 in) travel, preload and rebound adjustable |
| Brake system | ABS | Hydraulic discs front and rear (Bosch); single-channel switchable ABS standard |
| Front brake | 1 disc Ø 300 mm (11.81 in), 2-piston caliper | 267 mm disc |
| Rear brake | 1 disc Ø 218 mm (8.58 in), single-piston caliper | 220 mm disc |
| Front tire | 100/80-17 | Dunlop D605 90/90-21 |
| Rear tire | 130/70-17 | Dunlop D605 110/80-18 |
| Quickshifter | Not available | No |
| Launch price | Not available | EUR 4,599 (Italy (EU launch)) |