APRILIA SX125 (2008 - 2011) Review

At a glance

Owners' reliability rating: 2 out of 5 (2/5)
Annual servicing cost: £600
Power: 22 bhp
Seat height: Tall (34.3 in / 870 mm)
Weight: Low (254 lbs / 115 kg)

Overall rating

Next up: Ride & brakes
3 out of 5 (3/5)

Apart from the tinny two-stroke noise coming out the back of the SX125 and RX125 the new learner strokers could pass for a bigger supermoto. But get on board and you’ll find that the power and handling simply doesn’t match up to the looks.

Ride quality & brakes

Next up: Engine
3 out of 5 (3/5)

Those wide alloy bars give great steering, but even here at the top end of the 125 supermoto class the suspension doesn’t match up to the racy looks. Huge travel and soft springs mean the bike pitches back and forth and loads up in corners. Sticky tyres keeps them right side up, but you expect more from Aprilia. Good over rough surfaces though.


Next up: Reliability
2 out of 5 (2/5)

In days gone by performance two-strokes were about hard-hitting top end power, but emissions law has put paid to that. The once class-leading Aprilia engine has had it’s goolies removed to satisfy Euro3, and the weak bottom end builds in to an unexceptional top-end. Only low-rev fuelling is better than before.

Reliability & build quality

Next up: Value
3 out of 5 (3/5)

The build quality is superb – shiny fasteners, beautiful alloy components and tough looking plastics are up the spec of the rest of the Aprilia range. The 20 year-old engine should be reliable between piston ring changes given the necessary care – but since when do teens lavish care on a bike?

Value vs rivals

Next up: Equipment
2 out of 5 (2/5)

£3099 is a lot of money for a 125, especially given that the eco-changes have taken away some of the performance edge. It’s nicely built, but we’re not sure it’s worth the cash for a bike you might only keep for six months. Find an Aprilia SX125 for sale.


4 out of 5 (4/5)

The area where the SX125 and RX125 scores over rivals is in kit – Brembo brakes, a digital dash and beautiful alloy spoked rims look lovely. But Aprilia still hasn’t equipped the motor with RS125’s electric start – so it’s left-side kickstart only. Compare and buy parts for the Aprila SX125 in the MCN Shop.


Engine size 125cc
Engine type Single-cylinder two-stroke, 6 gears
Frame type Tubular steel trellis
Fuel capacity 10 litres
Seat height 870mm
Bike weight 115kg
Front suspension None
Rear suspension None
Front brake Sliding two-piston Brembo caliper, 260mm disc
Rear brake Sliding single-piston caliper, 220mm disc
Front tyre size 110/70-17
Rear tyre size 150/60-17

Mpg, costs & insurance

Average fuel consumption 35 mpg
Annual road tax £22
Annual service cost £600
New price -
Used price -
Insurance group 7 of 17
How much to insure?
Warranty term Two year unlimited mileage

Top speed & performance

Max power 22 bhp
Max torque 11.8 ft-lb
Top speed 82 mph
1/4 mile acceleration -
Tank range 76 miles

Model history & versions

Model history

New model for 2008.

Other versions

Aprilia RX125: same frame, engine, suspension and bodywork as the SX125, but the enduro-style RX version features larger wheels (21" front & 18" rear), different gearing and knobbly tyres. It's also £200 more expensive.

Owners' reviews for the APRILIA SX125 (2008 - 2011)

4 owners have reviewed their APRILIA SX125 (2008 - 2011) and rated it in a number of areas. Read what they have to say and what they like and dislike about the bike below.

Review your APRILIA SX125 (2008 - 2011)

Summary of owners' reviews

Overall rating: 3.2 out of 5 (3.2/5)
Ride quality & brakes: 4 out of 5 (4/5)
Engine: 3.5 out of 5 (3.5/5)
Reliability & build quality: 2 out of 5 (2/5)
Value vs rivals: 3 out of 5 (3/5)
Equipment: 4 out of 5 (4/5)
Annual servicing cost: £600
3 out of 5 Short life of a screamer.
07 July 2021 by Karlo Pauc

Version: SX125

Year: 2010

Annual servicing cost: £600

Best: Power and design. Worst: Unreliable, hard to start. I would recommend only if rebuild the engine straight after buying.

Ride quality & brakes 4 out of 5

Great when working. Brakes great Brembo. Pillion no problem, longest around 30 min. rider around 1,5 hrs.

Engine 4 out of 5

Like: Power, speed, sound. Dislike: Above average consumption. (7 litres)

Reliability & build quality 2 out of 5

Good quality, no corrosion. Hard to start with kick, easier to jump start. Broken down after 2 weeks ownership due to poor maintenance beforehand. Found out km was reversed (11,000 km fake, real 25,000 km).

Value vs rivals 1 out of 5

Bike wouldn't start anymore, did top engine rebuild (300€). Then crankshaft bearing fell apart, so bottom end rebuild also (300€). Then still not working properly (suspected CDI and el. wiring approx. 500€), sold for 1200€ as a result.

Equipment 5 out of 5

Came with Gianelli muffler and open exhaust. Need handguards for safety. Bought with Pirelli Diablo Rosso 2 tyres (front was 7 yrs. old that says all about previous owner) Was planning to put Dunlop Mutant.

Buying experience: Private buy. Advertised and paid 2300€.

3 out of 5 Great bike, when its working
13 August 2012 by shaneamondos

Looks great. sounds okay for a 125. but had all kinds of problems from not starting well to the speedo breaking

Ride quality & brakes 4 out of 5
Engine 3 out of 5
Reliability & build quality 2 out of 5
Value vs rivals 3 out of 5
Equipment 4 out of 5
4 out of 5 Great second hand bargain!
31 March 2011 by BlackFlag94

£1700 11kW 2009 @5800 miles. Bought it with nothing done to it... Only things i've had to do is rebuild it, de restrict it and changing the brake pads this week. Tyres have done 7600 miles and don't need changing.. Great buy

Ride quality & brakes 4 out of 5
Engine 5 out of 5
Reliability & build quality 3 out of 5
Value vs rivals 5 out of 5
Equipment 3 out of 5
3 out of 5 Great when it starts!
23 February 2009 by Brockfish

Bought from new. Fantastic looks / kit / handling, but very poor starting; would sometimes refuse to start. Dealer said it was 'technique' but I never had a problem with my old off-road DT250! Sold as a result.

Ride quality & brakes 4 out of 5
Engine 2 out of 5
Reliability & build quality 1 out of 5
Value vs rivals 3 out of 5
Equipment 4 out of 5
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