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Rieju MARATHON 125 Trail Motorbike Review

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Rieju 125 Pro Supermoto
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MCN overall verdict rating is 4

Rieju’s new Marathon 125 supermoto is powered by the same engine you’ll find in Yamaha’s YZF-R125 and WR125 range, albeit fitted with a 30mm Keihin carb instead of fuel injection. Costing £3199 this Spanish-made machine is actually £400 cheaper than Yamaha’s own WR125X supermoto.


MCN rating rating is 4
Owners' rating rating is 5

Powered by a liquid-cooled 125cc four-stroke engine, it has a learner-friendly 15bhp in standard trim, but is available in full-power (20bhp) if you have a full licence. Flat-out, head down, it does 73mph.     

Ride and Handling

MCN rating rating is 3
Owners' rating rating is 4

The seat is unbelievably hard, but on the move it’s light and flickable and it’s a lot of fun. It’s softer than its hardcore looks would suggest and the suspension is on the bouncy side. The brakes lack bite too.


MCN rating rating is 4
Owners' rating rating is 3

The Rieju comes with a high level of standard equipment, like 40mm upside down Marzocchi forks, a wavy Galfer front brake disc, braided steel brake lines, an aluminium swingarm, Domino handlebar grips and a two-way height-adjustable seat. Weighing in wet at just 117kg, it’s a massive 20kg less than the Yamaha WR125X. Compare and buy parts for the Rieju in the MCN Shop.

Rieju 125 Pro Supermoto (2009-current)

Detail Value
New price £3,199
Used price range View Rieju MARATHON 125 bikes for sale to see current asking prices
Engine size 125 cc
Power 15 bhp
Top speed 73 mph
Insurance group 5 of 17
  MCN ratings Owners' ratings
Overall rating is 4 rating is 4
Engine rating is 4 rating is 5
Ride & Handling rating is 3 rating is 4
Equipment rating is 4 rating is 3
Quality & Reliability rating is 4 rating is 3
Value rating is 4 rating is 5

Quality and Reliability

MCN rating rating is 4
Owners' rating rating is 3

Rieju may sound like a dodgy Chinese brand but this is a quality piece of kit, the engine is well finished, the styling bang-on and the quality of standard components high. There are a few cheap and cheerful bits that aren’t quite up to Yamaha standard, like the side stand, which flicks up as soon as you stand the bike up and the tacked-on starter button fitted to the left side of the handlebars. But overall the Rieju is an impressive package. You can also get the Marathon 125 Pro Enduro, which is exactly the same machine, but with bigger wheels and knobbly tyres for exactly the same price.


MCN rating rating is 4
Owners' rating rating is 5

Three grand is a lot to pay for a 125, but it’s the going rate for these funky learner machines. Honda’s uber-successful £3070 and Yamaha’s own £3699 YZF-R125 continue to sell by the bucket-load, and proves there’s a big market for funky 125s, so there’s no reason why the superb Marathon 125 Pro Supermoto doesn’t deserve a slice of it. Find a 125cc motorcycle for sale.


Insurance group: 5 of 17

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Model History

2009 – Model introduced

Other Versions

Rieju Marathon Pro 125 enduro


Top speed 73 mph
1/4-mile acceleration secs
Max power 15 bhp
Max torque 15 ft-lb
Weight 117 kg
Seat height 900 mm
Fuel capacity 7.4 litres
Average fuel consumption mpg
Tank range miles
Annual road tax
Insurance group 5 of 17
Engine size 125 cc
Engine specification Two-stroke single
Frame Steel double cradle
Front suspension adjustment Non-adjustable
Rear suspension adjustment Non-adjustable
Front brakes Single 300mm disc
Rear brake 200mm disc
Front tyre size 100/80 17 in
Rear tyre size 130/70 17 in

Owners' Overall Rating rating is 4(1 review)

  • the sound


    Average rating rating is 4

    Show Details

    Ride and Handling
    Quality and Reliabilty

    as with the title the noise of this bike is phenominal, the ride is okay be it like sitting on a wooden plank, only downside is not having a warning when your low on fuel or a fuel guage as iv found out already coming up on the side of the road waiting for a jerry can to arrive. cant be going flat out yet as im running her in atm but the Yamaha/minarelli engine is a real peach to work with amazingly good fueling for a carb even in heavy traffic

    27 May 2011


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