Aprilia RS4
2024 Aprilia RS125 GP Replica | |
| Manufacturer | Aprilia |
|---|---|
| Also called | Aprilia RS125 (2016–present) |
| Parent company | Piaggio |
| Production | since 2011 |
| Predecessor | Aprilia RS125 |
| Class | Sport bike |
| Engine | 124.2 cc (8 cu in) Single-Cylinder DOHC four valve four-stroke Electronic injection |
| Bore / stroke | 58.0 by 47.0 millimetres (2.28 in × 1.85 in) |
| Compression ratio | 12.5 ± 0.5:1 |
| Transmission | 6-speed manual, Wet multi-disc cable-actuated clutch, optional Quick Shift (upshifts) |
| Frame type | Perimeter frame, Die-cast Aluminium spars w/ crossed reinforcement ribs Asymmetric aluminium swingarm |
| Suspension | Front: Ø40 mm inverted forks Rear: Progressive monoshock, adjustable preload |
| Brakes | Front: Single Ø300 mm stainless steel disc, radial 4-piston caliper Rear: Ø218 mm stainless steel disc, single 30 mm piston caliper ABS: Bosch Dual Channel ABS |
| Tires | Front: 100/80 ZR 17 Rear: 140/70 ZR 17 |
| Wheelbase | 1353 mm |
| Dimensions | L: 1968 mm W: 760 mm [w/ mirrors] H: 1135 mm |
| Seat height | 820 mm (32 in) |
| Weight | 129 kg (dry) 144 kg (wet) |
| Fuel capacity | 14.5 L (3.2 imp gal; 3.8 US gal) Reserve: 3.5 L (0.77 imp gal; 0.92 US gal) |
| Fuel consumption | 2.71 L/100km |
| Related | Aprilia RS4 50 Aprilia Tuono 125 Derbi GPR125 |
The Aprilia RS4 125 (sold as the RS125 since 2016) is a 125 cc class sportbike manufactured by Italian motorcycle firm Aprilia. The four-stroke RS4 125 replaces the extremely popular RS125 two-stroke race replica in Aprilia's lineup. The bike is based on the four-stroke version of the Derbi GPR125.