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
  • £4,471

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.

Value & Running Costs 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

1 owner has 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.

We’re currently improving the way this section works, which means we’ve had to suspend the submission of new owners’ reviews for a short period. Please check back soon.

Summary of Owners' Reviews
Overall Rating 4 out of 5
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
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

Overall Rating 4 out of 5
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 1 owners' reviews in full

Facts & Figures

Model info
Year introduced 2011
Year discontinued -
New price £4,471
Warranty term Two year unlimited mileage
Running costs
Insurance group -
Annual road tax £17
Annual service cost -
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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