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Motorcycle comparison · Supersport

Aprilia RS 125 Replica (MY2017) vs Yamaha YZF-R125 (RE11)

Aprilia RS 125 Replica vs Yamaha YZF-R125: which one to buy for the riding you do.

Over rippled pavement, the Aprilia RS 125 Replica's aluminum frame and upside-down fork keep its line sharp. The Yamaha YZF-R125's taut chassis stays planted across them. It's already eager to flick toward the next bend.

Aprilia RS 125 Replica (MY2017) and Yamaha YZF-R125 (RE11) side by side
Aprilia RS 125 Replica (MY2017) 2017–2018 · RSV4 Looks, Learner Laws Yamaha YZF-R125 (RE11) 2015–2018 · The R1 Look, 125 Soul

So which one do you buy?

The YZF-R125 has the edge if…

Keeping running costs low

Small edge: YZF-R125

For the money you spend after the purchase, the YZF-R125 nudges ahead. The gap is too small to plan a budget around.

Daily commuting & city riding

Narrow edge: YZF-R125

The YZF-R125 edges it for the daily grind. It's down to lower running costs and friendlier manners. It's a small gap, not a reason on its own.

A confidence-building first motorcycle

A touch ahead: YZF-R125

The YZF-R125 is slightly friendlier for a newer rider. Put it down to easier controls.

What makes each one tick

RS 125 Replica

There's barely any buzz through the seat or pegs, because a balancer shaft keeps the Aprilia's liquid-cooled single running clean. It doesn't chase revs for thrills. At corner entry, the twin-spar spine steers in crisply and holds its arc.

YZF-R125

The R125's single spins up freely, and its slick six-speed means you'll stir every gear. Off the brake lever, the bike drops into a turn with little effort and stays composed on its course.

The Voice of Experience

Portrait of NastyNils

What actually separates them

  • The RS 125 Replica has the lower wet weight: 295 lb (134 kg) vs 309 lb (140 kg).
  • The YZF-R125 makes more peak torque: 9 lb-ft (12 Nm) vs 8 lb-ft (11 Nm).
  • The RS 125 Replica has the larger fuel tank: 3.8 US gal (14.5 L) vs 3.0 US gal (11.5 L).

See every difference ↓

Which one for the way you ride

On twisty roads, these two are a wash. That's where your budget and your inseam get the final say.

Who each one is built for

Appalachian Technical Corner Rider

SoCal Canyon Performance Rider

Texas Hill Country Weekend Rider

What's good, and what you'll live with

RS 125 Replica

What owners say

Strengths

  • High-spec chassis for a 125
  • Smooth, refined engine

Trade-offs

  • Engine lacks top-end excitement
  • Premium price at the top of the segment

YZF-R125

What owners say

Strengths

  • Comfortable sporty ergonomics
  • Exceptional fuel economy
  • Slick gearbox and light clutch

Trade-offs

  • Limited top speed and overtaking power

What they share

Displacement
125 cc
Engine
Single-cylinder
Cooling
Liquid-cooled
Power
15 hp (11 kW)
Gearbox
6-speed
Final drive
Chain
Fork
Upside-down (USD)
Front tire
100/80-17
Rear tire
130/70-17

Where the spec sheets split

Seat height and weight
RS 125 Replica YZF-R125
Seat height 32.3 in (820 mm) 32.2 in (818 mm)
Wet weight 295 lb (134 kg) 309 lb (140 kg)
Engine, power and torque
RS 125 Replica YZF-R125
Peak power at 10,000 rpm 9,000 rpm
Torque 8 lb-ft (11 Nm) 9 lb-ft (12 Nm)
Peak torque at 8,250 rpm 8,000 rpm
Top speed 80 mph (129 km/h) 81 mph (130 km/h)
Fuel economy and tank capacity
RS 125 Replica YZF-R125
Fuel economy 62 mpg (US) / 3.8 L/100 km 94 mpg (US) / 2.5 L/100 km
Fuel capacity 3.8 US gal (14.5 L) 3.0 US gal (11.5 L)
Other specifications
RS 125 Replica YZF-R125
Front brake 300 mm 292 mm

What comes fitted, what costs extra

RS 125 Replica YZF-R125
ABS Standard Option
Rear Suspension Adjustable Not offered Standard

Head to head, area by area

Both bikes on the same scale, one area at a time.

Braking

Engine

Handling

Suspension

Comfort

Reliability

Practicality

Sporting Capability

Usability

Specs and equipment as of October 19, 2026. The riding calls use the same ratings behind both buyer's guides.