Motorcycle specifications DerbiGPR 125 Racing 2006 Ca va wwiiiinnnhiinner !
derbi has made a name for itself with its 50 cm3 models, which are very popular with teenagers, and with its 125 Grand Prix performances. Preceded for some time by a 50 version, the GPR arrives on the 125 sports bike market with solid arguments. First, there's its ultra-sporty, incisive and aggressive silhouette, with a host of details and technical features worthy of the most modern supersports. Aluminum perimeter frame, reinforced swingarm, inverted fork, radial brake caliper, air intakes under the fork head, under-seat exhaust? Pretty much the same specification as a 2005 CBR 600 RR (performance and power are very different, of course).
It's tempting to identify with Jorge Lorenzo. To do so, you need to know how to exploit the Derbi's 2-stroke engine. It's a well-known engine, originally from Yamaha-Minarelli and used to power Yam's DTRs and old TDRs. In its French version, it competes directly with the 125 CBR and its 15 hp. However, a little magic potion and the mono can smoke the Honda with a force... Once the bridle is removed (it's forbidden except for track use), the mill produces 22 hp, enough to make a serious difference. Not enough power? An exhaust kit and you're left with 30 hp on the crankshaft. Enough to take on a Cagiva Mito or an Aprilia RS. In this case, you'll only be able to 
Over-typed for sport, the GPR is equally over-typed for driving. There's no question of dragging your feet in the mid-range, you have to get the power from the revs. The single-cylinder engine is at its best between 8,000 and 10,500 rpm. Staying within this narrow range is essential. Playing with the gearbox without restraint, making the 2-stroke howl, drawing beautiful trajectories, the little Spanish bike demands a lot of driving. An excellent school for the sport, which makes you hate the original tires all the more. They may be renowned Italian tires, but they come from a soap factory. A lack of rigor that makes the front brake die laughing. Don't worry about it; it's superbly efficient. If you have the radical spirit suggested by GPR, you're in for a treat. If you don't, you'll quickly become annoyed by the Spartan comfort, the lousy turning radius, the side stand that comes back on its own and the clunky tires. And that's not even mentioning the price...
Derbi has thought of those who want a less exclusive GPR. Following the example of Aprilia and its Tuono, the sportbike has been joined by a street-bike version, the Nude, with the same chassis and engine, but without the fairing and with a raised riding position.
M.B
(inspired by C. Lacombe's article - Moto-journal n° 1 642
manufacturer's photos)
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Rating : 5/5 Respond to gpr man
Rating : 5/5 Respond to NIKO
Go to a dealership and check out the Derby GPR: not a single thing wrong with it, nothing protruding, parts adjusted to the millimeter. You can feel that you're not in the same league as a Cagiva Roadster! Look at the equipment: brake discs, fork, radiator, suspension... Wow! Yes, this is a real motorcycle. And a bike that can turn 170/180 km/h on the track, in other words, a sports bike
Other nonsense not to be retained from this thread: the engine is not an Aprilia, but the Minarelli/Yamaha engine that already equipped the TDR: so much for its proven track record!
Electronic regulation is certainly not ensured by a "fuse", otherwise what would you do once the fuse has blown - replace it? Electronic regulation prevents the ignition circuit from consuming more than a certain amount of energy: when this is exceeded, regulation occurs. It's exactly the same effect as riding an ordinary bike when the battery is dead: you can't exceed a certain rpm because the alternator can't supply any more (for those who've experienced this on the CBT or RDX). On exhaust throttle, everything is explained in the article
Another piece of nonsense: you don't need to touch the engine to unclamp a machine. Otherwise, it's called an engine kit, but then it's not the same engine. In any case, we won't touch the "valves" because there are no valves on a "cylinder with holes" (revise your classics, Joe-Bar Team!)
So what if the Aprilia RS goes faster? Do we all have to ride Aprilias? When will that become compulsory? I ride a Honda, but I think this Derby looks a hell of a lot better than an RS, and I think it's only natural to fall for such a well-designed model. Today, I spoke with a guy who bought a Sym in October. This bike is so beautiful and really original, it doesn't go faster than 100km/h. He shouldn't have?
Great advice on how to debride without it showing, but if you change the pot, where do you hide the new one? In the event of an insurer's appraisal, don't expect to escape if you've modified your bike - it shows anyway
Someone who works at a dealership assures us that Derby doesn't make kits. Maybe they don't... In any case, I went to the dealer in my town this morning and the first thing he told me about was unboxing, so this information isn't worth much
Finally, before you say anything, it would be good to read the whole article, to avoid writing nonsense: if the engine is the TDR, it develops 30hp in "full" version, as indicated on the site, and not 22hp, which is the result of electronic debriding. All you had to do was read the article and you wouldn't have written all those useless things
What would be interesting would be to have the opinion of people who REALLY have this bike... Rating : 5/5 Respond to Havoc
And also that derbi was going to release a "competition" debriding kit to compete with the 34 hp of the rs125!!! It's going to get hotrrrrrrrrrr! Rating : 5/5 Respond to Pitibiker
The deriding kit costs around 600 euro a little less, my cess told me and he made it for me and it won't be under warranty...
Your msn mig?so we can talk about it if you want
Vizor_007@hotmail.com
++ Rating : 5/5 Respond to Pitibiker
Rating : 5/5 Respond to ££D/_\
a + Rating : 5/5 Respond to maupral