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Rob D's RS50 Saga

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King2smoke
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Rob D's RS50 Saga

Post by King2smoke » Fri Nov 24, 2017 3:39 pm

It begins .... Parts to come soon😬😎

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King2smoke
Posts: 5
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Re: RS50 super score

Post by King2smoke » Fri Nov 24, 2017 4:20 pm

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toratora
Posts: 3161
Joined: Wed Oct 11, 2017 1:05 am
Location: San Francisco
Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
x 1768
x 1977
Contact:

RS50 super score: pipes

Post by toratora » Fri Nov 24, 2017 4:44 pm

Pipes

Here are a number of pipes to consider, depending on what kit/carb/etc system you develop/design.
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toratora
Posts: 3161
Joined: Wed Oct 11, 2017 1:05 am
Location: San Francisco
Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
x 1768
x 1977
Contact:

RS50 super score: Carbs

Post by toratora » Fri Nov 24, 2017 5:32 pm

There are basically two different carbs I would suggest. The Polini CP 21 if you are going for a mid power setup, or the Polini PWK 24 if you are going for a more powerful setup. You'll want to get the cable choke version, and you'll need to get a cable setup for it too, because the RS doesn't come with one. There are many options there.
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User avatar
toratora
Posts: 3161
Joined: Wed Oct 11, 2017 1:05 am
Location: San Francisco
Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
x 1768
x 1977
Contact:

RS50 super score: Tires

Post by toratora » Fri Nov 24, 2017 5:35 pm

For this bike, and riding around here by far the best tire choice are the Sava Mitas MC18s. These tires are amazing, and made for these sorts of bikes. Front/Rear
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User avatar
toratora
Posts: 3161
Joined: Wed Oct 11, 2017 1:05 am
Location: San Francisco
Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
x 1768
x 1977
Contact:

RS50 super score: Chain

Post by toratora » Fri Nov 24, 2017 5:59 pm

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This is the chain I run on the 05. It's the nice one they have at Treats: ER 420NZ3
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If you don't want to spend that kind of money on a chain this one is a nice option: EK SILVER 420
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User avatar
toratora
Posts: 3161
Joined: Wed Oct 11, 2017 1:05 am
Location: San Francisco
Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
x 1768
x 1977
Contact:

RS50 super score: Trans Oil

Post by toratora » Fri Nov 24, 2017 6:03 pm

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You'll need to put some fresh oil in the tranny. The Motul expert transoil is the way to go with these bikes.
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toratora
Posts: 3161
Joined: Wed Oct 11, 2017 1:05 am
Location: San Francisco
Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
x 1768
x 1977
Contact:

RS50 super score: Top Ends

Post by toratora » Fri Nov 24, 2017 6:52 pm

There are a wide range of top end kits available for this bike. I'm only going to post kits that work with the stock stroke. If you want to go beyond that then you'll need different parts for the carb, and pipe too—pretty much everything changes when you go to those kits!
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User avatar
toratora
Posts: 3161
Joined: Wed Oct 11, 2017 1:05 am
Location: San Francisco
Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
x 1768
x 1977
Contact:

RS50 super score: Oil Pump Cover

Post by toratora » Fri Nov 24, 2017 6:55 pm

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With any of the aggressive kits you'll need to go pre-mix. Anything with the 24mm should be pre-mixed, and anything that is going to rev beyond 11K at an extended length should go pre-mix.

This means removing the oil pump (which you need to do or it will burn out). It's simple enough. Just remove the pump, and replace it with one of these plates. There are a number of different ones—the Voca come is black, and red.
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User avatar
toratora
Posts: 3161
Joined: Wed Oct 11, 2017 1:05 am
Location: San Francisco
Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
x 1768
x 1977
Contact:

RS50 super score: Clutch

Post by toratora » Fri Nov 24, 2017 11:20 pm

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The moment you add something to this bike to get it to deliver more power than stock you have to upgrade the clutch. You can start out with just springs, and for the stuff I've listed above a disc pack with springs should be okay.

If you really push the power though you probably should consider one of the serious clutch upgrades—which basically bring it up to stock Derbi levels.
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