APRILIA RS4 125 (2011-on) Review

Published: 17 June 2011

"There are cheaper 125s but none have the same heritage or kudos"

APRILIA RS4 125  (2011-on)

"There are cheaper 125s but none have the same heritage or kudos"

  • At a glance
  • 124cc  -  15 bhp
  • 54 mpg  -  174 miles range
  • Medium seat height (820mm)
  • Suitable for A1 licence
  • New: £4,471
    Used: £2,300 to £4,100 See all APRILIA RS4 125s for sale

Overall Rating 4 out of 5

At £3999 OTR there are cheaper 125s but then none of those rivals have the same heritage or kudos. Despite making only 15bhp it’s great fun to ride - the fact the new four-stroke engine thrives on revs keeps the old RS spirit alive. It handles well, stops well, and most importantly looks the part. What more could a 17-year-old want?

Ride Quality & Brakes 4 out of 5

Due to the light weight the RS4 handles brilliantly. Flicking it from right to left is a doddle and should you need to change your line during a corner, a slight push on either bar will suffice. The launch bikes were shod with super-sticky Pirelli SC1s which really showed off the full handling potential of the RS4. It's surprisingly roomy and, compared to the old RS125, feels slightly less sporty which is a big plus.

Engine 4 out of 5

Pulling away requires a good twist of the wrist to get the new four-valve, four-stroke engine spinning and keep up the momentum. Compared to some 125s the RS4 needs to be revved and ideally kept above 8000rpm. Even som the Aprilia accelerates briskly upto 40mph before starting to level off.

Build Quality & Reliability 4 out of 5

The new four-stroke 125cc engine should be much more reliable than the highly-strung two-stroke engine of the onld RS - which was often neglected by teenagers. The bikes never missed a beat being held at full throttle virtually all day in 30°C plus heat.

Insurance, running costs & value 4 out of 5

£3999 on the road sounds like a lot for a 15bhp bike, but when you consider the Yamaha YZFR-125, arguably its closest rival, costs £4,249 it doesn't seem so bad. Yes, there are cheaper 125s out there, but none of them are as cool as the Aprilia.

Equipment 3 out of 5

Radial brakes, braced swingarm, max speed function and braided hoses are all standard on the RS4 125. One of the accessories which will beavailable is a quickshifter. It only really works weel if changing up right before the rev limiter at 11,000rpm, changing anywhere else results in a very clunky and crude sounding gear change. But a quickshifter will give you major bragging rights over your mates.

Owners' Reviews

4 owners have reviewed their APRILIA RS4 125 (2011-on) 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 RS4 125 (2011-on)
Summary of Owners' Reviews
Overall Rating 4.8 out of 5
Ride Quality & Brakes 4.8 out of 5
Engine 4.3 out of 5
Build Quality & Reliability 4.5 out of 5
Value & Running Costs 3.8 out of 5
Equipment 4.5 out of 5
5 out of 5

Best 125cc bike on the market....

29 August 2016 by Fais

After months researching best 125s on the market... I must admit it came down to cheaper 125s until I saw the Aprilia as I never heard from this brand before and going deeper into the companies history and reviews from critics and owners... its not... Read more just buying there 125s and than look again on the market for 600cc or higher with other brands it's also about upgrading to the big brother of the same brand. So I decided to buy a new rs4 125 at first the beauty of this bike got my attention and the size of this bike you wouldn't even believe it's a 125 until you see the L stickers. After riding the bike from brand new it felt slow at first or maybe I was novice so After getting used to the bike I must admit this is by far the best bike ever. handling position it's top notch the engine it's powerful enough to be in front of the cars all the time and can really kick thanks to the Eni oil and whatever aprilia done to the engine. I won't be upgrading anytime soon until I have advanced my self to ride the big brother RSV4. I highly recommend this motorcycle believe me you will not regret this bike. Go for a test

Ride Quality & Brakes
5 out of 5
Breaks are absolutely wonderful on this bike and the ride quality it's fun and can ride for hours as the temp of the engine never goes above 4 bars out of 8 thanks to the massive cooler.
Engine
5 out of 5
Believe me after first 100miles you will see the real side of this engine. Accelerating its quick for 125 engine and you will see huge improvements.
Build Quality & Reliability
5 out of 5
The quality of the bike it's top notch Afterall it's made in Italy and the best engineers. Just don't rev over 7000rmp before the first 100miles it was hard not for me to do that as this bike it's fun to ride and hearing that beautiful engine all day also super eco friendly barely sips the petrol.
Value & Running Costs
4 out of 5
Super Eco friendly hardly sips any petrol.
Equipment
4 out of 5
Comes with passenger's seat by defaults as older rs where optional. Love the rear led lights and front lights 2 on the left and 2 on the right and one in the middle that's 5 lights
Buying experience

Brand new from dealer.

5 out of 5

great bike

20 March 2016 by sandip rana

This bike has full control on bends, pickups over all everything. Read more

Ride Quality & Brakes
5 out of 5
-
Engine
5 out of 5
-
Build Quality & Reliability
4 out of 5
-
Value & Running Costs
4 out of 5
-
Equipment
5 out of 5
-
Buying experience

I bought it privately and was for £2500. I loved it look and performance and didn't bargain on price.

5 out of 5

Great first bike (if you can afford it).

22 January 2016 by Pjay

Superb all over, reliable, handles well and is beautiful to boot. Read more

Ride Quality & Brakes
5 out of 5
Ride quality is superb, maybe changing the stock tyres to gain the best from this bike would be a good idea, other than that, it handles knee down cornering very well and leaves you confident of its ability in no time.
Engine
4 out of 5
I would give it 5 out of 5 but the engine can be a little over revving, you do need to keep it in the higher revs just to make it move around, but this is a minor niggle.
Build Quality & Reliability
5 out of 5
Very well put together, nothing like you'd expect from an Italian manufacturer, much more on par with Japanese build quality.
Value & Running Costs
4 out of 5
Expensive out of the box, but second hand sales mean you will get a large chunk back, look to lose no more than £500 if owning for 2 years.
Equipment
5 out of 5
Very well equipped, the brakes are great, the cockpit is laden with nice touches and a nice space under the seat for storage (for the class anyhow).
4 out of 5

Not bad

19 May 2012 by iloveme23

I have both the 2 stroke and 4 stroke rs 125's, the 2stroke version is faster and a lot more fun to ride but the new rs4 is still a good bike, handles well, quite nippy {Quick shifter helps a bit} Only rode the bike for 50 miles so not had a... Read more chance to give it a good ragging yet but will do after the run in-period

Ride Quality & Brakes
4 out of 5
-
Engine
3 out of 5
-
Build Quality & Reliability
4 out of 5
-
Value & Running Costs
3 out of 5
-
Equipment
4 out of 5
-
Read all 4 owners' reviews in full

Facts & Figures

Model info
Year introduced 2011
Year discontinued -
New price £4,471
Used price £2,300 to £4,100
Warranty term Two year unlimited mileage
Running costs
Insurance group -
Annual road tax £17
Annual service cost £80
Performance
Max power 15 bhp
Max torque 11.9 ft-lb
Top speed 65 mph
1/4-mile acceleration -
Average fuel consumption 54 mpg
Tank range 174 miles
Specification
Engine size 124cc
Engine type Four stroke liquid cooled single cylinder with electronic injection and 4 valves. DOHC. Bore and stroke 58x47mm.
Frame type Aluminium perimeter frame
Fuel capacity 14.5 litres
Seat height 820mm
Bike weight 134kg
Front suspension 41 mm upside-down forks
Rear suspension Asimmetric swingarm, hydraulic monoshock absorber
Front brake 300mm stainless steel disc with radial 4 piston caliper
Rear brake 218mm stainless steel disc with single 30mm piston
Front tyre size 110/80 - 17
Rear tyre size 130/70-17

History & Versions

Model history

2011: Model introduced

Other versions

None

Photo Gallery

  • APRILIA RS4 125  (2011-on)
  • APRILIA RS4 125  (2011-on)
  • APRILIA RS4 125  (2011-on)
  • APRILIA RS4 125  (2011-on)
  • APRILIA RS4 125  (2011-on)
  • APRILIA RS4 125  (2011-on)
  • APRILIA RS4 125  (2011-on)
  • APRILIA RS4 125  (2011-on)
  • APRILIA RS4 125  (2011-on)
  • APRILIA RS4 125  (2011-on)
  • APRILIA RS4 125  (2011-on)
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