Aprilia RX 125 vs KTM 125 SMC R: specs compared

Side-by-side specs of the Aprilia RX 125 (2026-present) and the KTM 125 SMC R (2026-present), using the latest model year of each.

Key differences

Specification	Aprilia RX 125 2026-present Remove	KTM 125 SMC R 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	single-cylinder , 4 strokes Injection Ø 33 mm Cooling system : liquid 2 ACT 4 valves per cylinder 124.99 cc 15 ch (14.80 hp) to 10,000 rpm 1.30 mkg (11.50 Nm) to 7,750 rpm
Cylinders	1	1
Displacement	124 cc	124 cc
Power	14.8 hp @ 10,500 rpm	14.8 hp @ 10,000 rpm
Torque	11.4 Nm @ 8,500 rpm	11.5 Nm @ 7,750 rpmBest
Transmission	6 stage gearbox , manual Secondary by chain	6 stage gearbox , manual Secondary by chain
Final drive	chain	chain
Weight	136 kg (wet)Best	152 kg (wet)
Seat height	905 mm	860 mm
Fuel capacity	7 L	9 LBest
Front suspension	Reverse telehydraulic fork Ø 41 mm, Wheel travel : 240 mm (9.45 in)	Reverse telehydraulic fork Ø 43 mm / White Power (WP) , Wheel travel : 230 mm (9.06 in)
Rear suspension	Monoshock, Wheel travel : 220 mm (8.66 in)	Monoshock / White Power (WP) , Wheel travel : 230 mm (9.06 in) Preload adjustment
Brake system	ABS	ABS
Front brake	1 disc Ø 260 mm (10.24 in), 2-piston caliper	1 Bybre disc Ø 320 mm (12.6 in), radial mounting, 4-piston caliper
Rear brake	1 disc Ø 220 mm (8.66 in), single-piston caliper	1 Bybre disc Ø 240 mm (9.45 in), single-piston caliper
Front tire	100/80-21	110/70-17
Rear tire	130/70-18	150/60-17
Quickshifter	Not available	Not available
Launch price	Not available	Not available