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Single vs Twin Motorcycle Engines: What I Learned Owning Three of Each

Hello everyone.

Are you torn between a single-cylinder and a twin-cylinder motorcycle?

Over the years I've owned three singles and three twins.
In this article I compare them not by the numbers in the brochure, but by how they actually felt to ride.

The short answer

  • Singles: light and easy to handle, and easy to work on yourself. But on long rides, the vibration can stay in your hands
  • Twins: plenty of torque and easy over long distances. But the bikes tend to be heavier
  • For me, more than the difference in feel, it was the weight of the bike that made the biggest difference to how often I rode
  • If you can't decide, take a test ride or rent one, and try pushing it around and doing a U-turn too

The singles and twins I've owned

BikeEngineYearsIn a word
Yamaha DT200WRSingle (two-stroke, 200 cc)c. 2006–2010Light and powerful
Honda XR250 BAJASingle (250 cc)c. 2010–nowI strip it down to the engine and service it myself
BMW G650GSSingle (650 cc)2020–April 2026Light, with all the power I needed
Honda Transalp 400VV-twin (400 cc)2010–2012Never tiring, but it felt heavy
Yamaha TDM900AParallel twin (900 cc)2012–2015Plenty of torque, easy to ride
Honda X-ADVParallel twin (750 cc)2026–Easy with DCT; the bike I ride now
(For reference) Triumph Tiger ExplorerTriple (1200 cc)2016–2020Very powerful, but far too heavy
The silver big tank and logo of my XR BAJA
My XR BAJA, which I still ride

What I found riding singles

The good

  • Light: the DT200WR was light and powerful. The G650GS was light for a 650 cc big bike, with all the power I needed
  • Easy to work on: the design is simple, and I've stripped my XR250 BAJA down to the engine and rebuilt it
  • Good fuel economy: my XR250 BAJA does about 28 km/L (around 66 mpg UK)
A white BMW G650GS fitted with panniers and a top box
G650GS (2012)

The downside: vibration in your hands

On the singles I rode, vibration came through the handlebars into my hands.
After long tours, my hands sometimes stayed numb even after I'd stopped riding.

Boosting the ignition voltage and fitting a crankcase pressure reducing valve (T-REV) eased this vibration.

T-REV Review on a BMW G650GS: Softer Engine Braking and Smoother Vibration from a Single

My impressions of a TERAMOTO T-REV crankcase pressure reducing valve on a BMW G650GS: five changes on the road, a gear-range graph, maintenance and downsides.

What I found riding twins

The good

  • Transalp 400V: easy to ride, with a soft, cushy seat; I never got tired even on long rides
  • TDM900A: as you'd expect from a 900 cc twin, it had plenty of torque and was easy to ride
  • X-ADV: the throbbing pulse I felt on the TDM900A is much weaker, so it doesn't bother me and the bike is comfortable
A silver Yamaha TDM900A (2005) seen from the front right
TDM900A (2005)

The downside: the pulse and the weight

  • On the TDM900A, the twin's throbbing pulse was too strong for me
  • Both the Transalp and the TDM900A were heavy. Used to the light DT200WR, I found the Transalp very heavy
  • I dropped the Transalp on a slope and struggled to pick it up, and that stayed with me

Even among twins, how strong the pulse felt varied a lot from bike to bike.

For me it was weight, not the number of cylinders

One heavy bike after another, the Transalp, the TDM900A and the Tiger Explorer, and I rode less and less.

So I looked for a big bike under 200 kg, and chose the single-cylinder G650GS.

My X-ADV today is a twin, but what decided it wasn't the cylinders; it was how easy it is to ride with DCT (Honda's automatic gear change).

A white and blue Honda X-ADV seen from the front right
The X-ADV I ride now
  • DCT is very easy, and it has given me more room to enjoy the scenery and to check around me safely
  • The rear brake lever on the left handlebar, where the clutch lever would be, is very useful

Before deciding on the number of cylinders, I recommend checking whether you can push the bike around, and pick it up if you drop it.

Singles and twins in general

Putting my experience together as general tendencies, it looks like this.

SingleTwin
PulseYou clearly feel each power strokePower strokes overlap and feel smoother (how strong the pulse is varies by bike)
BikeOften slim and lightHeavier and often wider than a single
Best atTown riding, narrow roads, gravel tracksMotorways, long distances
VibrationVibration tends to come through to your handsUsually finer and milder
MaintenanceFewer parts, easy to work on yourselfMore work than a single
It depends on the bike; these are only tendencies

What to check on a test ride or rental

  • Push it around and do a U-turn: weight matters more when you're stopped than when you're riding
  • Ride both in town and on the motorway: check the vibration and how tired you get. With a single, ride a bit longer and see whether your hands go numb

If you can, rent a single and a twin for a day each and compare them on the same roads.

Summary

  • Singles: light, easy to work on, good on fuel. Watch out for hand vibration on long rides
  • Twins: plenty of torque, easy over long distances. How strong the pulse is depends on the bike
  • My conclusion: more than the feel, what mattered was whether I could handle the weight

I hope this helps if you're choosing your next bike.

-others