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Derbi GPR50 2003 France project

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User avatar
benito brz
Posts: 118
Joined: Fri Sep 20, 2019 1:26 pm
Location: France
Replica: Derbi GPR 50 2003
Aprilia RS4 125 2014
x 64
x 77

Re: The headlight and speedometer

Post by benito brz » Fri Jul 31, 2020 12:51 pm

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Yeah i've got led lights and they're cool, just bigger, but cool

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2 x

User avatar
benito brz
Posts: 118
Joined: Fri Sep 20, 2019 1:26 pm
Location: France
Replica: Derbi GPR 50 2003
Aprilia RS4 125 2014
x 64
x 77

Re: The headlight and speedometer

Post by benito brz » Fri Jul 31, 2020 1:01 pm

Lets disassembly everything

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This little light for the high beam light got stuck :grimacing:

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Lets clean all that

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2 x

User avatar
benito brz
Posts: 118
Joined: Fri Sep 20, 2019 1:26 pm
Location: France
Replica: Derbi GPR 50 2003
Aprilia RS4 125 2014
x 64
x 77

Re: New speedometer support

Post by benito brz » Fri Jul 31, 2020 1:07 pm

New speedometer support, that's interesting because the broken one is in steel and the new one is in plastic, they are a little different

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1 x

User avatar
benito brz
Posts: 118
Joined: Fri Sep 20, 2019 1:26 pm
Location: France
Replica: Derbi GPR 50 2003
Aprilia RS4 125 2014
x 64
x 77

Re: The headlight and the speedometer

Post by benito brz » Fri Jul 31, 2020 2:25 pm

New parts :sunglasses:

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I was searching for this but I didnt find one so I created one

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2 x

User avatar
benito brz
Posts: 118
Joined: Fri Sep 20, 2019 1:26 pm
Location: France
Replica: Derbi GPR 50 2003
Aprilia RS4 125 2014
x 64
x 77

Re: The headlight and the speedometer

Post by benito brz » Fri Jul 31, 2020 2:29 pm

Lets reassembly all that on the bike

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3 x

User avatar
benito brz
Posts: 118
Joined: Fri Sep 20, 2019 1:26 pm
Location: France
Replica: Derbi GPR 50 2003
Aprilia RS4 125 2014
x 64
x 77

Re: The radiator !!

Post by benito brz » Fri Nov 13, 2020 9:16 am

Hello everyone
When I was riding with the bike one year ago, it was leaking some coolant from the radiator but I couldn't find where exactly
So I cleaned the hoses and put some air pressure in the radiator, also with some soap on it so it can make some bubbles if there is a hole.
Heres the hoses before and after cleaning

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Heres the radiator, he's not in a good shape,

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And here is the little hole where it was leaking by

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Also Here is a new gas cable

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1 x

User avatar
benito brz
Posts: 118
Joined: Fri Sep 20, 2019 1:26 pm
Location: France
Replica: Derbi GPR 50 2003
Aprilia RS4 125 2014
x 64
x 77

Re: The air filter

Post by benito brz » Fri Nov 13, 2020 9:24 am

I've bought a new air filter and cleaned the air box :sunglasses:

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1 x

User avatar
benito brz
Posts: 118
Joined: Fri Sep 20, 2019 1:26 pm
Location: France
Replica: Derbi GPR 50 2003
Aprilia RS4 125 2014
x 64
x 77

Re: Brake discs apocalypse

Post by benito brz » Fri Nov 13, 2020 9:58 am

Since I had some issues with my white wheels, I went to a motorcycle wheel specialist with my white wheels and also my black wheels I recently bought.
So he said the white wheels are completely unusable, but the black ones are in a pretty good condition, there was just an imperfection on the rear wheel but he fixed that for me for free and said dont touch it anymore or it could be worse , he also said the grimeca wheels are the worst type of wheels because of their steel type, you can just destroy them by placing bearings with a hammer.
So now I want to do an epoxy beautiful white paint on the black wheels like the previous ones, just because I have trust issues I cut my old brake discs and put them on the wheels, so the brake disc areas are protected from sandblasting and painting.

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Now the rear wheel

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Yeah I'm a psychopath but the discs were old and used, I also have new ones so dont worry.
I'm also searching for a solution to protect my bearings areas, my coworker asked me to put only the exterior part of the old bearings so the're will not be some grease on the fresh paint if I put the entire bearings, so I've done exactly what he said but I realized its gonna be difficult to take them out after painting.
Dont worry i didnt put them on the wheels anymore for the moment.

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So do you guys have an idea to protect my bearings areas ?
How can I do ?
2 x

User avatar
jkv357
Posts: 213
Joined: Fri Dec 01, 2017 6:47 am
Location: WI
Replica: '99 GPR EBE-075
x 393
x 110

Re: Derbi GPR50 2003 France project

Post by jkv357 » Fri Nov 13, 2020 10:33 am

Honestly, you shouldn't need to do any of that.

The problems may come because of aggressive media blasting to strip the wheel. When I strip a wheel I do it chemically, and the media blasting is very moderate - not enough to affect the mount areas for the rotors or the bearing pockets (no need to blast down into the bearing pockets).

If you wanted to protect the bearing pockets you can use a rubber stopper, and tap it into the opening securely.

The areas where the rotors mount and bearings seat should be masked, after prep and cleaning, before painting or powder coating.

You need to find someone that knows what they are doing so they don't wreck the wheels.


Jay
www.apexcustomcoating.com
3 x

User avatar
benito brz
Posts: 118
Joined: Fri Sep 20, 2019 1:26 pm
Location: France
Replica: Derbi GPR 50 2003
Aprilia RS4 125 2014
x 64
x 77

Re: Derbi GPR50 2003 France project

Post by benito brz » Fri Nov 13, 2020 11:12 am

jkv357 wrote:
Fri Nov 13, 2020 10:33 am
Honestly, you shouldn't need to do any of that.

The problems may come because of aggressive media blasting to strip the wheel. When I strip a wheel I do it chemically, and the media blasting is very moderate - not enough to affect the mount areas for the rotors or the bearing pockets (no need to blast down into the bearing pockets).

If you wanted to protect the bearing pockets you can use a rubber stopper, and tap it into the opening securely.

The areas where the rotors mount and bearings seat should be masked, after prep and cleaning, before painting or powder coating.

You need to find someone that knows what they are doing so they don't wreck the wheels.


Jay
www.apexcustomcoating.com
Thanks very much for the answer jay
I think I will search another paintshop that will do some great job, maybe protecting bearings areas is useless, maybe the painter doesnt want me to protect these so he can do it himself if he want.
You're right I think I will not lost my time with these bearings areas.
Now I just have to find a good painter that can do it and just hope he wouldnt wreck them again :-D
Thanks you again jkv :paw_prints:
2 x

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