DERBI GPR125 (2010 - on) Review

At a glance

Owners' reliability rating: 3.6 out of 5 (3.6/5)
Power: 13 bhp
Seat height: Medium (31.9 in / 810 mm)
Weight: Low (284 lbs / 129 kg)


New £3,819
Used N/A

Overall rating

Next up: Ride & brakes
4 out of 5 (4/5)

Sadly, the two-stroke 125 is all but dead. The recent advent of credible, easy to ride and cheap to run four-strokes is killing sales of fickle, expensive smokers. Derbi’s learner sportsbike gets an all-new design with a four-stroke engine for the first time, going head-to-head with Yamaha’s YZF-R125.

Ride quality & brakes

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

125s have to be built to a price – teenagers usually have a limited budget. So the chassis usually suffers. The Derbi has a chassis that looks tricker than it is (the aluminium beam frame is two parts bolted together at the headstock!), but it works OK. The suspension is firm – sometimes too firm over potholes, but it steers and holds a line better than bouncy rival machinery. The radial caliper looks good, but lacks bite – squeeze it hard.


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

What we say here is relative – in general motorcycling terms, the Derbi GPR125 is slow and buzzy. But back-to-back with other four-stroke 125s it’s right up there with the quickest (we saw 83mph on the digital dash), and once you get used to having to rev it hard all the time, it’s loads of fun to thrash everywhere. It even holds speed up hills OK, but it’s still only got 13bhp – don’t expect too much. 

Reliability & build quality

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

Because it’s so new we’re unable to give a full appraisal of reliability – our test Derbi GPR125 dealt with nearly 300 miles flat out without complaint, but the finish isn’t the nicest. The brake master cylinders and other bracketry is a bit cheap and nasty, and the whole bike feels a bit plasticky. That’s the pay-off for having the trick bits at a reasonable price.

Value vs rivals

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

Cheaper than an R125, but more expensive than a Honda CBR125R with better spec than both, the Derbi is decent value on paper, but you are getting a less durable product that isn’t likely to retain as much value and desirability as the sought-after Japanese machines. Find a Derbi GPR125 for sale.


4 out of 5 (4/5)

In terms of bling, the Derbi is the king of the 125s. It has a digital race-look dash that records highest top speed as well as more useful information, upside-down forks, radial calipers and an underslung exhaust. There is a pillion seat – it’s small, high and fitted to a bike not powerful enough for passengers anyway. Compare and buy parts for the Derbi GPR125 in the MCN Shop.


Engine size 124cc
Engine type Liquid-cooled, four-valve four-stroke. Six gears, chain drive
Frame type Twin spar aluminium beam with double-sided swingarm
Fuel capacity 13 litres
Seat height 810mm
Bike weight 129kg
Front suspension none
Rear suspension none
Front brake 300mm disc
Rear brake 220mm disc
Front tyre size 100/80-17
Rear tyre size 130/70-17

Mpg, costs & insurance

Average fuel consumption 65 mpg
Annual road tax £22
Annual service cost -
New price £3,819
Used price -
Insurance group 4 of 17
How much to insure?
Warranty term Two year unlimited mileage

Top speed & performance

Max power 13 bhp
Max torque 7 ft-lb
Top speed 78 mph
1/4 mile acceleration -
Tank range 188 miles

Model history & versions

Model history

2010: New model

Other versions

Derbi GPR50: Very similar in design, but with a 50cc two-stroke engine for 16 year-olds. Buy the 125 unless you’re 16 – it’s easier to get on with and holds safer speeds out of town

Owners' reviews for the DERBI GPR125 (2010 - on)

5 owners have reviewed their DERBI GPR125 (2010 - 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 DERBI GPR125 (2010 - on)

Summary of owners' reviews

Overall rating: 4.2 out of 5 (4.2/5)
Ride quality & brakes: 4 out of 5 (4/5)
Engine: 4.2 out of 5 (4.2/5)
Reliability & build quality: 3.6 out of 5 (3.6/5)
Value vs rivals: 3.8 out of 5 (3.8/5)
Equipment: 4.6 out of 5 (4.6/5)
2 out of 5
11 October 2022 by GenericGeezer

Year: 2012

When it worked, It was geniunely great. Epic fun and just a laugh. Handled really well, decent brakes and a the TFT was a nice feature. HOWEVER, it spent most of it's time not working. Although I suspect it was from the previous owners and their lack of care about it. Ride was uncomfortable, tires weren't the best and the bodywork wasn't the best of quality.

Ride quality & brakes 3 out of 5

Brakes were good.

Engine 2 out of 5

A hoot when it worked, but this was a rarity.

Reliability & build quality 1 out of 5

Broke down on me twice. Battery had a tendency to go flat after 24 hours despite being a new one. Bodywork was pretty rubbish, a lot of scratches and marks on it. Paint flaking off

Value vs rivals 3 out of 5

Very economical, was quite expensive for a pretty old bike but running costs in general were low

Equipment 4 out of 5

TFT showed everything

Buying experience: Bought Privately. Guy was alright, and knocked off a couple of hundred quid. Shame the bike lost pretty much all its value when it died completely

5 out of 5 No R1 & No CBR GPR is best
27 February 2016 by Robert Bulz

Year: 2016

The best 125 in the world this GPR 125 also known as RS 125 when it comes from Aprilia. Nothing can be better of 125 CC to 155 CC with this beautiful beast!

Ride quality & brakes 4 out of 5
Engine 5 out of 5
Reliability & build quality 5 out of 5
Value vs rivals 3 out of 5
Equipment 5 out of 5
4 out of 5 Derbi GPR125 4T
20 June 2012 by JevansEvans

Its a good bike, but its harsh price tag put it out of reach of most of my 17 y/o biker friends - I saved up and bought one that was just under 3 years old with 5k miles for 2 grand. Probably the biggest mistake of my life so far. There are *ZERO* aftermarket parts for this bike, and even the manufacturer parts are hard to come by - It took me 3 weeks to replace my sprockets, and even then I couldnt even attempt to fiddle with the gear ratios because the only ones that were available were stock size. My side stand sensor broke, so I set off with it down and subsequently crashed at ~15mph, causing about 400 pounds worth of damage to the expensive (and very hard to come by) fairings. The fuel light indicator comes on when you have about 30seconds left to live, pretty much useless when you're heading up the A5. The fuses will blow, out of nowhere, I even had a professional electrician strip it down and rebuild it, he couldnt source the problem. And after 100 miles on this thing, death seems like an easy way out - then again, it is a sportsbike. On the bright side, its absolutely gorgeous, a real head turner. I went so far as to give it a custom paint job (black/green) and its got me plenty of attention form the ladies.. the perfect wingman. Its FAST, not just for a 4T, but for any 125 machine - it'll redline at 74, but keep going on till 85mph when you finally decide that you're 'overdoing' it. Short distances down the shops etc are a thing of beauty, handling like a dream. But the real shock comes in when you put it on a race track, it corners like you wouldnt believe, infact I think I managed to get my knee to about 3 inches off the ground, before I bricked it and slowed up. The acceleration is good, but not great, if you put it next to a destricted 50cc machine, you wont see much difference up to 30mph - but once you hit 4th gear, it'll just fly. I managed to safely clip on a 16tooth front sprocket from another bike (stock is 14) and it put the acceleration down a decent amount, it'll now do 0-60 in around 16 seconds. But the top end has shot up to a whopping 94mph going down a steady hill. Overall, a good bike if you have the money and time to look after it properly, I'd choose this over a similar prices RS anyday.

Ride quality & brakes 4 out of 5
Engine 5 out of 5
Reliability & build quality 2 out of 5
Value vs rivals 3 out of 5
Equipment 5 out of 5
5 out of 5 My first bike. . .
08 February 2011 by pinkdino

...and it's a cracker! I looked at all the 125s on the market, and was put off by the Aprila and Yama's price tag. A review last summer had the Derbi as a dark horse beaten only by the Aprila, and I picked mine up nearly new, pristine for £2k. I have been riding bikes for 3 days now, and I love this bike. 0-30mph is rapid, and the 4th gear is a laugh out loud grin fest. I pulled up at work (motorcycle insurance!) and had a flock of people surround me, all very positive in praise of the looks and sounds (the bike, not me). I plan to ride this for a year, so I am super confident by the time I move up to my next bike, a GSXR 600. This will definately do for now.

Ride quality & brakes 4 out of 5
Engine 4 out of 5
Reliability & build quality 5 out of 5
Value vs rivals 5 out of 5
Equipment 4 out of 5
5 out of 5 its the best
26 November 2010 by briandot

this is the best 125 bike on the market its fast easy to ride briliant handling i have had 77mph out of it atm and i ahve not took it back for its service yet so you shold be looking at bout 85mph not 78mph just make sure you run it in probly need any thing eles just ask??

Ride quality & brakes 5 out of 5
Engine 5 out of 5
Reliability & build quality 5 out of 5
Value vs rivals 5 out of 5
Equipment 5 out of 5
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