Aprilia RS4 125

Aprilia RS4 125
ManufacturerAprilia
Also calledAprilia RS125 (2016–present)[1]
Parent companyPiaggio
Productionsince 2011
PredecessorAprilia RS125
Classsport bike
Engine124.2 cc (8 cu in) Single-Cylinder DOHC[2] four valve four-stroke
Electronic injection
Bore / stroke58.0 by 47.0 millimetres (2.28 in × 1.85 in)
Compression ratio12.5 ± 0.5:1
Transmission6 speed, multi-disk oil bath clutch
Frame typePerimeter frame, Die-cast Aluminium spars w/ crossed reinforcement ribs
Asymmetric aluminium swingarm
SuspensionFront: 40 mm inverted forks
Rear: Progressive monoshock
BrakesFront: Single 300 mm diameter stainless steel disc, radial 4-piston caliper w/ Bosch Single Channel ABS[3]
Rear: 218 mm diameter stainless steel disc, single 30 mm piston caliper
TiresFront: 100/80 - 17",
Rear: 130/70 - 17"
Wheelbase1353 mm
DimensionsL: 1968 mm
W: 760 mm
H: 1135 mm
Seat height820 mm (32 in)
Weight129 kg[4] (dry)
144 kg (wet)
Fuel capacity14.5 L (3.2 imp gal; 3.8 US gal)
Reserve: 3.5 L (0.77 imp gal; 0.92 US gal)
Fuel consumption2.71 L/100km
RelatedAprilia RS125, Aprilia RS4 50

The Aprilia RS4 125 (sold as the RS125 since 2016)[1] 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.[5]

  1. ^ a b "Intermot 2016: Aprilia launches Tuono 125 and RS125". Overdrive.
  2. ^ "RS4 125 - Aprilia". Aprilia. Archived from the original on 20 June 2016. Retrieved 18 September 2018.
  3. ^ "Aprilia RS125 Technical Specification" (PDF). Aprilia. Retrieved 18 September 2018.
  4. ^ "RS 125 GP Replica - Technical Specifications" (PDF). wlassets.aprilia.com. Retrieved 30 Oct 2020.
  5. ^ Ash, Kevin (20 June 2011). "Aprilia RS4 125 review" – via www.telegraph.co.uk.