Yamaha XSR125 (MY2021) — Retro Classic
Yamaha Press

2021–2026 · Retro Classic · Buyer's Guide

XSR125 (MY2021)

3.5 / 5 NastyNils Rating · against its class

Retro Style, Featherlight Handling

The Machine's Character

Yamaha built this one around a liquid-cooled 125 cc single with variable valve actuation, which broadens the torque curve and has the engine waking up properly from around 7,000 rpm. Peak power is 15 hp at 10,000 rpm, with 8 lb-ft at 8,000. The chassis comes from the sporty R125 side of Yamaha's house: a steel diamond frame, an upside-down fork, and a 140/70-17 rear tire that gives the bike real visual heft. Styling sits at the purist end of retro, with the modern hardware kept quiet in the background. ABS, a slipper clutch, and an LED headlight are standard.

It rewards momentum and clean gear selection instead of brute force, which is the exact skill set that makes a rider better over a season. This is genuinely a bike for short and medium distances, in town and on back roads, ridden by someone who wants it to look right parked outside a diner. Running costs stay low, the mechanicals are proven, and there is enough aftermarket support to make it your own. The caveat is honest: 77 mph (124 km/h) is the ceiling, and the equipment list is basic, with no traction control, no ride modes, and no TFT screen.

Hard Numbers

Spec sheets don't ride bikes, but they set the baseline.

Show full specs & equipment Hide specs & equipment
Key specifications
Power 15 hp (11 kW) @ 10,000 rpm
Torque 8 lb-ft (12 Nm) @ 8,000 rpm
Displacement 125 cc
Engine Single-cylinder
Cooling Liquid-cooled
Gearbox 6-speed
Fork Upside-down (USD)
Front brake 267 mm
Front tire 110/70-17
Rear tire 140/70-17
Seat height 32.1 in (815 mm)
Wet weight 309 lb (140 kg)
Fuel capacity 2.9 gal (11 L)
Top speed 77 mph (124 km/h)

Equipment check

Drivetrain

  • Slipper Clutch Standard

Lighting

  • LED Headlight Standard

Safety

  • ABS Standard
An elevated view of a deep autumn canyon, likely Big Cottonwood Canyon, Utah. Steep rocky cliff faces and forested mountain ridges frame a narrow valley where a winding two-lane road passes below. Deciduous trees display full autumn color — gold, orange, and amber — interspersed with green conifers on the steep slopes. A single dark vehicle is visible far below on the road. Snow-dusted mountain peaks rise in the background under a partly cloudy sky.
Alex Moliski / Pexels

The Truth on the Street

What follows isn't a spec sheet reading. It's what I've picked up over years in paddocks, in conversation with owners at club nights, and in the messages riders send me about the bikes they actually live with. On the XSR125 that chatter lands consistently: the praise is loud and repeats on the same few things, while the complaints are quieter and sit on details rather than on the core of the bike.

Compliments It Collects When Parked

More than any riding trait, owners talk about the reaction this bike gets. The classic silhouette, the polished metal detailing, and the heritage color schemes draw compliments, and riders point out that it stands apart from the other modern 125s parked around it. Nothing else in the community chatter comes up as consistently as this.

What A Back Road Brings Out

Ask owners what it's like to ride and the word that keeps returning is fun. They describe a lively motor, a chassis that hands over confidence quickly, and enough perky midrange to make a back road worth the trip. Riders also say it holds speed on open roads better than they expect from a 125. Agility gets raised constantly, with owners describing tight turns and threading through town as effortless. Two more come up often: the suspension stays plush without going vague, taking bumps out of the road without drama, and the seat is padded thick enough that neither rider nor passenger is complaining on a longer ride.

Where The Grumbles Show Up

The gripes are quieter and narrower, but they repeat. Price leads: riders note it asks more than many direct rivals, though some figure the build and equipment account for part of that. After that it's details. The LCD display washes out in bright sun and turns hard to read. Exposed wiring and plastic trim catch the eye of owners who expected more polish at this money. Some mention vibration turning intrusive when the motor is held high in its range, and a few say the front brake wants a firm pull, with little bite at the first squeeze.

The Expert Benchmark

Where this Yamaha XSR125 pulls ahead of — or falls behind — its rivals on the numbers, and the typical bike in its class on character.

What kind of bike this is — character vs. the class

This bike Class average

Head-to-head: Yamaha XSR125 vs. its rivals

The 'Should I Buy It?' Score

Forget spec-sheet bragging. Here's who the XSR125 is actually built for.

A scenic view of Angeles Crest Highway winding through rugged Southern California canyon terrain. Rocky mountainsides with golden earth tones frame the asphalt road with tight sweeping curves. Double yellow center line visible, sparse vegetation along the shoulders, clear blue sky with white clouds. Daylight, dry conditions. Iconic location for canyon-road enthusiasts.
Josh Sorenson / Pexels

Best retro motorcycle for road trips?

Small towns, old routes, and an unhurried pace are exactly this bike's terrain, and it looks the part parked anywhere. Plan the trip around back roads, because long interstate transfers will wear thin.

Made for Acadia National Park · Austin / Handbuilt Motorcycle Show · Blue Ridge Parkway

Best motorcycle for Texas Hill Country?

On tight ranch roads it is a genuine grin, light and easy to place exactly where you want it. The long open run to get out there is the part you will have to be patient with.

Made for Austin / Texas Hill Country · Twisted Sisters · Austin / Handbuilt Motorcycle Show

Best motorcycle for Tail of the Dragon?

If the goal is sharper lines rather than bigger numbers, the low weight and clear feedback make this a real teaching tool on the twisties. On the straights between them, you wait.

Made for Back of the Dragon · Blue Ridge Parkway · Cherohala Skyway

Alternatives to the Yamaha XSR125

If this one isn't quite the fit, these are the bikes worth riding back-to-back against it.