Aprilia RS 125 vs Yamaha YZF-R125: specs compared

Side-by-side specs of the Aprilia RS 125 (2026-present) and the Yamaha YZF-R125 (2023-present), using the latest model year of each.

Key differences

Specification	Aprilia RS 125 2026-present Remove	Yamaha YZF-R125 2023-present Remove
Category	Supersport	Supersport
Years	2026-present	2023-present
Engine	single-cylinder , 4 strokes Injection Ø 32 mm Cooling system : liquid 2 ACT 4 valves per cylinder 124.20 cc 15 ch (14.80 hp) to 10,500 rpm 1.17 mkg (11.40 Nm) to 8,500 rpm	124.7cc liquid-cooled single, VVA
Cylinders	1	1
Displacement	124 cc	124 cc
Power	14.8 hp @ 10,500 rpm	14.8 hp @ 9,000 rpm
Torque	11.4 Nm @ 8,500 rpm	12.4 Nm @ 8,000 rpmBest
Transmission	6 stage gearbox , manual - optional shifter Secondary by chain	6-speed manual, chain, slipper clutch, QS-ready
Final drive	chain	chain
Weight	144 kg (wet)	144 kg (wet)
Seat height	820 mm	820 mm
Fuel capacity	14.5 LBest	11 L
Front suspension	Reverse telehydraulic fork Ø 40 mm / Paioli , Wheel travel : 110 mm (4.33 in)	KYB 41mm upside-down (inverted) telescopic fork, non-adjustable
Rear suspension	Mono-damper, Wheel travel : 120 mm (4.72 in)	Link-type monoshock swingarm, spring preload adjustable, 110mm wheel travel
Brake system	ABS	Hydraulic front and rear discs with dual-channel ABS
Front brake	1 J.Juan disc Ø 300 mm (11.81 in), radial mounting, 4-piston caliper	292mm floating disc, radial-mount caliper
Rear brake	1 disc Ø 218 mm (8.58 in), single-piston caliper	230mm disc
Front tire	100/80-17	100/80-17 (Michelin Pilot Street)
Rear tire	140/70-17	140/70-17 (Michelin Pilot Street)
Quickshifter	Not available	Yes
Launch price	Not available	GBP 5,302 (UK)