Create a thread about your bike.
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Get Your Own GPR Camp 4 T-Shirt
Replies: 1
by
toratora » Mon Sep 09, 2019 6:39 pm
» in
General Bike Chat
First post
If you weren’t able to make it to GPRC4, but still want a shirt well now you can. This year’s shirts were upgraded in quality, and with Derbi,...
Last post
More shirts went out today—thanks for the orders!! :paw_prints:
- 1 Replies
- 759686 Views
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Last post by toratora
Sat Oct 05, 2019 3:39 pm
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2003 Derbi GPR from Junk to Racetrack
by
DrSmile » Fri Jul 10, 2026 1:53 am
Hi,
i know this forum since some years and i want to present my GPR.
Bought for 250eur as it was just waiting to get ripped apart or to build up...
- 0 Replies
- 2209 Views
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Last post by DrSmile
Fri Jul 10, 2026 1:53 am
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'09 GPR50 to 125 swap
Replies: 8
by
raceraidan » Fri Jul 25, 2025 1:53 am
First post
Recently picked up a blown 2009 GPR50. It's in bits atm. I also picked up a rebuilt TZR 125 bottom end.
My plan is to do the topend, get the engine...
Last post
Engine is built and in the bike.
Bought a 125cc athena kit and fitted it.
Bought a gpr125 engine cradle which bolted straight into the gpr50 frame....
- 8 Replies
- 142727 Views
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Last post by raceraidan
Sun Sep 14, 2025 10:07 am
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New project - TZR250R
Replies: 2
by
jkv357 » Thu Jun 12, 2025 1:32 pm
First post
Latest acquisition, just off the boat -
1991 TZR250R, 250cc V-twin. Runs well, but needs some attention cosmetically - and tires (real bad)....
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There is a guy (Richard) in the Tulsa, OK, area that imports Japanese bike by the shipping container. He has a guy that will deliver anywhere for...
- 2 Replies
- 33619 Views
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Last post by jkv357
Sat Jun 14, 2025 6:22 pm
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Derbi GPR Track Bike
Replies: 87
by
toratora » Mon Aug 17, 2015 3:39 am
First post
For sometime now I've been collecting parts that would ultimately end up on a bike to take to the track--kart track that is, not a full on moto race...
Last post
:heart:
- 87 Replies
- 4415255 Views
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Last post by Fedewsb
Sat Aug 10, 2024 11:44 pm
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Wayward 2003 GPR
Replies: 57
by
al_pritchard » Tue Feb 01, 2022 11:52 am
First post
I managed to rescue a wayward 2003 GPR the other week. You know what they say, if you're cold there cold. And it looked so cute sitting in that...
Last post
It’s cold now, so thoughts turn to winter projects. So I thought a couple of photos might be fun.
Couple of areas to tidy up over winter. And some...
- 57 Replies
- 3325682 Views
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Last post by al_pritchard
Mon Dec 11, 2023 8:25 am
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Derbi GPR50 2003 France project
Replies: 117
by
benito brz » Fri Sep 27, 2019 10:22 am
First post
Hello everyone , I'm a French sixteen years old guy, I'm new on the GPR Camp, in this topic I'm gonna talk about my Derbi GPR50 of 2003, I bought it...
Last post
Hey everyone
I just wanted to share these pictures with you :D
- 117 Replies
- 927930 Views
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Last post by benito brz
Sat Aug 12, 2023 12:52 pm
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DRP: Derbi Reactivation Project
Replies: 332
by
toratora » Tue Sep 22, 2015 3:39 pm
First post
.
The Derbi Reactivation Project
My all time favorite bike is the 05 GPR that I sourced from Atlanta. A Saab buddy of mine...
Last post
I have the same engine as well Charounosaur. Once I get it built with the 80cc kit I'll post up my experience with vibration.
Thanks for the...
- 332 Replies
- 3271257 Views
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Last post by Charounosaur
Thu Nov 17, 2022 6:43 am
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2020 RIEJU RS3 NKD EURO4
Replies: 14
by
Jaxx » Wed Jun 16, 2021 10:22 am
First post
Now where to begin this story... Some time ago I've acquired a garage nearby my home, which has plenty of space. Much more than my RX bike actually...
Last post
Had much trouble during running-in, it felt like an airleak (difficult starting, sometimes with high revs in slow return to idle), but I didn't have...
- 14 Replies
- 156436 Views
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Last post by Jaxx
Sun Sep 25, 2022 10:27 am
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Mito no Ongaeshi
Replies: 20
by
toratora » Mon Oct 07, 2019 3:39 pm
First post
After nearly seven years in storage the Cagiva Mito returned yesterday. It’s going to take a bit of restoration effort to bring the bike back into...
Last post
As is the way of things theses days I have nearly no time to devote to any of the bikes. Currently only the Mito seems to be getting any attention....
- 20 Replies
- 187953 Views
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Last post by toratora
Fri Jun 24, 2022 7:39 pm
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2009 Derbi GPR50
Replies: 19
by
Reefyboy-15 » Sat Dec 19, 2020 4:02 pm
First post
2009 Derbi GPR50 de restricted Ginnelli Exhaust. What would be the best road tyre wet and dry (it rains a lot in the UK) for this bike with a...
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URGENT HELP Please!!
While I am very pleased with the outcome of my efforts to make a smart looking Derbi GPR50 the engine is very temperamental and...
- 19 Replies
- 205307 Views
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Last post by Reefyboy-15
Tue Apr 19, 2022 12:10 pm
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Aprilia RS4 125 in France
Replies: 29
by
benito brz » Sun Nov 03, 2019 7:23 am
First post
Hello everyone, after i've introduced my Derbi GPR, I wish to introduce my new bike, an Aprilia RS4 125 from 2014. It's so cool to have this bike at...
Last post
And now here is cool pictures
And now with my car and my new bike
- 29 Replies
- 344012 Views
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Last post by benito brz
Fri Oct 15, 2021 1:16 pm
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RMP SM Project—Rieju MRT Pro
Replies: 122
by
kaldis12 » Tue Aug 14, 2018 1:44 pm
First post
Hey Guys,
I know its not Derbi or Aprilia but the engine is AM6 from an old Aprilia so lets start this. Let's start at the beginning. (Actualy the...
Last post
A mechanical waterpump can take a a few hp(give or take). I went with an electric one mainly because, as you may know I fitted a Derbi clutch on an...
- 122 Replies
- 618169 Views
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Last post by kaldis12
Wed Mar 17, 2021 8:55 am
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2016 Aprilia RX 50
Replies: 45
by
Jaxx » Mon Jan 20, 2020 10:21 am
First post
I've decided to create (I've should done that while ago) project thread about my bike, it's much more convenient then opening new thread for every...
Last post
Did you have an easy way to test for leaks? thinking of getting the bike running then putting smoke near the boot and see if that draws it in.. to me...
- 45 Replies
- 456248 Views
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Last post by toratora
Tue Feb 09, 2021 3:14 pm
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Derbi GPR100SP Pesek Replica
Replies: 10
by
scottydog » Fri Oct 30, 2020 10:15 am
First post
Hi Everyone,
I am a long time fan of Derbi GPR50 model 2005 to 2009. When this model came out I thought it was the ultimate sub 125cc bike perfect...
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I will next have to sand the edges of the bodywork to be neat and then talk to the painter on what is best for the surface for the primer to bond....
- 10 Replies
- 113558 Views
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Last post by scottydog
Sat Nov 07, 2020 9:06 am
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2018 Aprilia RS4 50 Euro 4 Upgrade Project
Replies: 489
by
Berkeley » Mon Sep 17, 2018 1:30 pm
First post
So after being nudged by toratora to start a project of this I thought why not!!
I brought this 2018 in June model for my 14 yr old daughter and I...
Last post
finally....... can log in again!!!
so took long to start, got going then stopped.
Anyway im looking for parts to build a pressure test kit but...
- 489 Replies
- 2190117 Views
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Last post by Berkeley
Thu Nov 05, 2020 8:47 am
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CRF150R Supermoto
Replies: 13
by
jkv357 » Fri Aug 02, 2019 7:03 am
First post
Picked up a non-running '08 CRF150R a while back for a good price. Didn't look bad. Kid said it ran when parked -
Not exactly -...
Last post
His 150R Supermoto(front) and 450R Supermoto/Icebike before the incident -
- 13 Replies
- 163046 Views
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Last post by jkv357
Sun May 10, 2020 6:34 am
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Red Rocket: 2012 Red Derbi GPR
Replies: 91
by
toratora » Wed Mar 21, 2018 9:39 pm
First post
For my Adventure Japan trip I picked up this 2012 (2011 model year) Red Rocket. While it was used it only had 520 Kilometers on it. This is one of...
Last post
I need a new longer piston for my cylinder ad Im going for a bigger stroke.
I could help in that too. But the only problem is I dont know its...
- 91 Replies
- 479843 Views
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Last post by kaldis12
Tue Jan 28, 2020 12:34 pm
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BRK 88 For a new Generation
Replies: 3
by
kaldis12 » Thu Jan 02, 2020 10:14 am
First post
Got a new bigger project running along with the other one...
For this one we went with a BRK 88 with its 45mm stroker crankshaft.
About the...
Last post
Brk has a modular head, thats why its better. Nothing else.
Its still under porting, it will be done probably in the next weeks
- 3 Replies
- 106499 Views
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Last post by kaldis12
Thu Jan 09, 2020 11:33 pm
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Derbi—The Red Power
Replies: 249
by
toratora » Fri Jul 19, 2013 3:39 am
First post
I've been working on this one on and off for many years. There have been several incarnations of this bike while I've owned it. Shortly after I...
Last post
Thats a tight fit! Good luck in the move. On a side note do you know where I can find decals for the 2002 Lorenzo red/black checkered bike? I noticed...
- 249 Replies
- 2053293 Views
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Last post by VT78racer
Tue Dec 17, 2019 5:30 pm
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2003 Derbi GP1 Scooter
Replies: 2
by
chadzilla1 » Mon Sep 09, 2019 4:10 pm
First post
Ok new project found a 2003 Derbi GP1 scooter with 2175 miles. The scooter didnt run so I pushed it 3 miles :-(
Got it home and put new spark plug...
Last post
It’s a sweet bike. It will be worth all your hard effort. :paw_prints:
- 2 Replies
- 87490 Views
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Last post by toratora
Thu Nov 07, 2019 7:39 pm
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Cobra CX65 Mini Moto
Replies: 39
by
toratora » Mon Feb 13, 2017 3:39 pm
First post
I've been talking about these bikes for quite a while—an American made two stroke ! Yes you can actually buy a brand new two stroke motorcycle made...
Last post
I have been somewhat absent recently due to all the life things going on out here. I’ll be catching up with stuff this week—I hope! In the mean time...
- 39 Replies
- 297777 Views
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Last post by toratora
Mon Sep 30, 2019 11:39 pm
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The RMV125 - CR125 Conversion for 99-05 RS50
Replies: 2
by
mattology » Tue Sep 17, 2019 5:52 am
First post
A long long time ago, in a city across the bay, I purchased my first RS50, and realized that while it was a ton of fun, there were major shortcomings...
Last post
Nicely done Matt.
- 2 Replies
- 96280 Views
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Last post by toratora
Thu Sep 19, 2019 11:02 pm
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04 Derbi GPR Nude
Replies: 16
by
Basscor » Wed Jul 24, 2019 9:50 am
First post
Howdy Folks!
I recently stumbled upon this forum while researching this bike I acquired a month or so ago. When I got it it was in pieces and the...
Last post
When you have more than one issue the best method is to work on them one at a time methodically plodding through each one until you solve them all....
- 16 Replies
- 218719 Views
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Last post by toratora
Fri Aug 16, 2019 3:39 pm
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PPMPR: Project Poor Man’s Pro Race
Replies: 168
by
toratora » Wed Jan 18, 2017 9:39 pm
First post
How did this bike come about? It's quite a Byzantine tale. Initially the engine was built up for the 05, and then later found itself in other bikes....
Last post
The ProRace is getting a bit of City action recently. I went downtown on it today, and then rode home through upper Market, and down O’Shaughnessy.At...
- 168 Replies
- 706475 Views
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Last post by toratora
Thu Jul 18, 2019 9:39 pm
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Adventures in Apriliandia
Replies: 19
by
toratora » Sun Jan 07, 2018 7:39 pm
First post
Contrary to what many may believe this isn’t my first Aprilia, It’s not even my second! lol :lol: But it will be the first one that I’m going to do...
Last post
If it seems like this bike is taking forever to come together well that’s because it is taking forever! :scream_cat: Today another box of parts...
- 19 Replies
- 199322 Views
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Last post by toratora
Thu Jul 18, 2019 7:39 pm
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