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paiste
04-05-09, 07:28 PM
Both my nephews have just done their CBT's. Ones 16 the other's 19.
The 16 yo has got a Gilera runner and the 19 yo has told me that he's getting a Derbi GPR125R. He's already got a car, so won't be his main method of transport.
Anybody know if they're any good?
The one he's looking at is an 07 plate 3000 km
http://cgi.ebay.co.uk/2007-DERBI-GPR-125-RACING-IN-RED_W0QQitemZ290313703818QQcmdZViewItemQQptZUK_Mot orcycles?hash=item290313703818&_trksid=p3286.c0.m14&_trkparms=66%3A2%7C65%3A7%7C39%3A1%7C240%3A1318%7C 301%3A1%7C293%3A1%7C294%3A50
Lad wants £1200 for it :?:
All opinions greatly received ;)

suzsv650
04-05-09, 08:09 PM
I had a derbi gpr 50

Superb bike stupidly quick and handled like it was on rails!

Gpr125 is a differnt bike tho, it isnt that good. I would look at a RS125 or Cagiva Mito- best looking bike EVER! The gpr125 is quite sluggish compared to these and in places quite tacky. That one on the bay looks alright but its lent over quite a bit :confused:.

If i was him id go for a RS125 owned by a mature owner. They need to be treated right serviced and ran on top quality oil, they dont like being ranted every where (unless you wona rebuild it every 2000 miles). The mito is ever so slightly more reliable but you stuggle for parts. The RS's have millions of parts.

Biker Biggles
04-05-09, 08:13 PM
At 19 Id advise him to do his test before anything.That way he can get any bike up to 33BHP and legally ride the one he is looking at derestricted.

Leopard_lily
04-05-09, 08:20 PM
my first bike was an RS125 and that was all well and good untill you attempted trying to do a u-turn or any other slow turn riding - the steering lock on them is sh!te and so if he's looking to do DAS in the future - it's not the best bike to be practising on - that gpr125 looks like it would have the same problem to me.

suzsv650
04-05-09, 08:22 PM
my first bike was an RS125 and that was all well and good untill you attempted trying to do a u-turn or any other slow turn riding - the steering lock on them is sh!te and so if he's looking to do DAS in the future - it's not the best bike to be practising on - that gpr125 looks like it would have the same problem to me.


They are race bikes with lights and number plates its gona happen.. Just the same on any Sports bike.

Leopard_lily
04-05-09, 08:35 PM
They are race bikes with lights and number plates its gona happen.. Just the same on any Sports bike.

Well of course I know that now lol but when I was looking for my first bike after my CBT - I just wanted something that was fast not realising it would be useless to help me practise the majority of the slow speed manouvres for DAS. Live and learn eh

pencil shavings
05-05-09, 12:42 AM
my first bike was an RS125 and that was all well and good untill you attempted trying to do a u-turn or any other slow turn riding - the steering lock on them is sh!te and so if he's looking to do DAS in the future - it's not the best bike to be practising on - that gpr125 looks like it would have the same problem to me.

was my first bike too. I loved it.

I would recomend a RS125 to anyone. I rode it restricted for about 6 months untill I took off the restriction. If its his first bike he wont miss the power that he dosent know about. Unrestricted the power band is amazing.

I loved it so much that a RS250 is still my dream bike. They are honestly that good. Oh, Im 6'1" and yes sure it was a little small, but it was my only transport and it never bothered me that much. Unless he is a monster I wouldnt worry about it.

(but yes they do blow up if you dont look after them, and sometimes even when you do! I killed the top end 3 times on mine, but I dont regret it)

Jamiebridges123
05-05-09, 06:54 AM
Ran a full power RS125 for 4 months, used the top Castrol stuff without a problem. Did 2000 medium/hard usage miles and there was no harm done.

TBH these days running a 2T is like saying "I'm a numpty" to the general public. Having owned a 2 stroke sports bike, I can very much say "Buy a YZF-125!"

Leopard_lily
05-05-09, 07:06 AM
I rode it restricted for about 6 months untill I took off the restriction.

I looked into having it unrestricted and was told by 2 companies it was illegal as the bike was too powerful for it's class.

pencil shavings
05-05-09, 09:55 AM
I looked into having it unrestricted and was told by 2 companies it was illegal as the bike was too powerful for it's class.

yep you are 100% right :-dd

paiste
05-05-09, 06:02 PM
was my first bike too. I loved it.

I
Oh, Im 6'1" and yes sure it was a little small, but it was my only transport and it never bothered me that much. Unless he is a monster I wouldnt worry about it.



He's 6'5" !!

Leopard_lily
05-05-09, 06:03 PM
He's 6'5" !!

Well lets face it - he's gonna look huge on anything then eh lol - maybe a hyosung GT125???? that's supposed to be a big mans bike not sure what it's like to ride though

zsv650
05-05-09, 06:51 PM
best bikes for tests in my opinion is dirt bikes light easy to maneuvre like a dt or kmx and there real fun through the back road's just my opinion though.

Jamiebridges123
05-05-09, 06:53 PM
CG or DT for your test is a very easy way to pass... well.. any 4T uprighty bike would do. 2T are harder to ride (:

BBadger
05-05-09, 07:20 PM
Are they completely set on 2T, as for a 4T have a look at Rieju rs2 125.
They are lovly and very well built lots of power aswell for a 4T, was quite supprised.

BanditPat
05-05-09, 09:48 PM
I looked into having it unrestricted and was told by 2 companies it was illegal as the bike was too powerful for it's class.

Only illegal if your on a restricted license or a CBT;)


I had a GPR 50 and that was decent except for in the rain, I would just go for something cheap to get my test passed then get something nice but its up to him I suppose...

Leopard_lily
06-05-09, 07:18 AM
Only illegal if your on a restricted license or a CBT;)

I was told even if I had a full licence it would still be illegal - the bike is illegal if it is unrestricted whether you have the licence to ride it or not.

Biker Biggles
06-05-09, 09:37 AM
I was told even if I had a full licence it would still be illegal - the bike is illegal if it is unrestricted whether you have the licence to ride it or not.


Dont think thats right.The RS 125 can put out 33BHP if derestricted but it fails the little known power to weight ratio required for those on restricted licences.The bike is too light for its power output.
BUT----I dont see how that would be an issue for those on a full license

pencil shavings
06-05-09, 10:43 AM
I was told even if I had a full licence it would still be illegal - the bike is illegal if it is unrestricted whether you have the licence to ride it or not.

Oh I didnt know that...

I just knew I was pushing my luck derestricted on L-plates! :!:

suzsv650
06-05-09, 11:00 AM
RS125 can be riden with L plates (restricted to 12 BHP)

When you got your full licence you can de restrict it to 33 BHP (full power)

RS250's make a lot more power so you will need a fully de resticted or DAS licence to ride one.

Nicky S
06-05-09, 11:00 AM
aprillias and derbis 125 and 50 are nearly all the same some parts are the same and they are made in the same factory. i had a rs50tuono and a gpr and loved both of them the rs50 was eayser to make go fast but ther gpr was a bit harder both ride fine and never had any problems plus the gprs dont look lik small bikes anyway. and the price is not to bad ever

yorkie_chris
06-05-09, 08:54 PM
Ran a full power RS125 for 4 months, used the top Castrol stuff without a problem. Did 2000 medium/hard usage miles and there was no harm done.

TBH these days running a 2T is like saying "I'm a numpty" to the general public. Having owned a 2 stroke sports bike, I can very much say "Buy a YZF-125!"

Why would anyone want a YZF-125? They've got all the quick-shatter plastics of a race rep without any of the poke.

I was told even if I had a full licence it would still be illegal - the bike is illegal if it is unrestricted whether you have the licence to ride it or not.

That's total bullsh1t.

zsv650
06-05-09, 09:01 PM
Why would anyone want a YZF-125? They've got all the quick-shatter plastics of a race rep without any of the poke.



though theyre all crap so why not have one that look's good not like you can get hold of decent two trokes anymore theyve all been ragged by scrotes. ;)

yorkie_chris
06-05-09, 09:04 PM
But they're easy to fix, worst case is a crank rebuild and they're only about £100 on a single cylinder.

BanditPat
06-05-09, 09:06 PM
But they're easy to fix, worst case is a crank rebuild and they're only about £100 on a single cylinder.

Or you can do it your self and save some money

zsv650
06-05-09, 09:07 PM
But they're easy to fix, worst case is a crank rebuild and they're only about £100 on a single cylinder.
and then there still **** i love em too but you cant get away from the fact that there still ****. :D

Doofer
06-05-09, 10:35 PM
A friend bought a GPR125 last year and let me have a ride.

At 5'1" it's a bit tall for me, but as I've been riding bigger bikes for a number of years an it is so light in comparison I coped with the height.

For a 125 its not a bad bike, turning circle is ok for a race rep style 125, I've ridden worse, acceleration pretty good.

The engine is very likely a Yamaha engine, DTR125 and others similar (my friend's is but I'm uncertain of the year of reg) so engine rebuilds can be done without having to pay Derbi prices, many of the other parts are the same as Aprillia or Yamaha parts, you just need to identify which make and model, Derbi prices are pretty steep compared to the Yamaha alternatives.

Second hand spares aren't so freely available, again, knowing which parts cross make & model helps there.

Nice little bikes, my friend's is already reserved for my son when he turns 17 in just over a year.

Recommended rebuild schedule is every 22k, which if I recall correctly is almost double the mileage of the Aprillia (please feel free to correct me there :D) assuming you don't make it go pop in the meantime, but that's the nature of 2 strokes.

If he wants a sporty looking 2 stroke then why not? its a good enough bike and there aren't so many of them around as there are RS125s, so something just a little different, and maybe your other nephew will move up to it once he turns 17

I beleive there is currently quite a reasonable deal going on with Yamaha for a new YBR125 at the moment, its a lot less sporty and a 4 stroke, but might be worth a look.

Doof

paiste
06-05-09, 10:36 PM
best bikes for tests in my opinion is dirt bikes light easy to maneuvre like a dt or kmx and there real fun through the back road's just my opinion though.

I suggested a Dt125 or KMX/KDX etc as it would be a taller seat and more comfortable, then do his test on it and then get a restricted SV or similar. :D
He's dead set on this Derbi though. The 16 yo has got this idea that he can have it when he turns 17.
If that's the case then Joe can buy my SV and I'll get an SV thou or a street triple. Everyones a winner!!

Jamiebridges123
07-05-09, 12:39 AM
www.pjme.co.uk seem to stock all the bits you need. I heard nothing but rave reviews from the old RS owners forum.

paiste
07-05-09, 11:44 PM
Thanks for all the comments. He's messagedme to tell me that he's bought it anyway. He's in the bad books at home as he didn't let his dad know and just turned up with it at home with nowhere to keep it :rolleyes:.
He's let his heart rule his head.
I'll have him on an SV befor the years out ;)

Jamiebridges123
08-05-09, 12:02 AM
Why would anyone want a YZF-125? They've got all the quick-shatter plastics of a race rep without any of the poke.


Personally I'd like for it to start without choking my neighbours with smoke (This was all injected so it's not like I was using too much oil in the fuel), and a bike that I wouldn't need to rev like a chav to prevent it leaving deposits on the spark plug.. Oh and I wouldn't want to bother with seized pistons and replacing the entire top end every 5000 miles. Here's to you, 2T engine. :alien:

pencil shavings
08-05-09, 07:09 AM
Personally I'd like for it to start without choking my neighbours with smoke (This was all injected so it's not like I was using too much oil in the fuel), and a bike that I wouldn't need to rev like a chav to prevent it leaving deposits on the spark plug.. Oh and I wouldn't want to bother with seized pistons and replacing the entire top end every 5000 miles. Here's to you, 2T engine. :alien:

yes there are negitives, but boy are they worth it!!

neighbours and environment: screw 'em
dirty plugs: take it for a quick blast down your local A roads now and then
blowing the top end :smt073: a problem if its your only transport, otherwise a great learning experance (I had 3 top ends go :rolleyes:) and is fun to do!

warrenhewitt10
08-05-09, 03:25 PM
that sidestand is increadable the bike is at like a 45 degree angle haha