750 Sport restoration project

[ducinthebay]

Speaking of it why would one make adapters to keep the 280mm discs on a Sport that`s modified for track instead of using the 320mm discs made for those wheels and just make an adapter for the caliper ?

G.

I may have to do with the rules for the class he is racing in.
Vintage motocross limits travel on your suspension, for example.
While the bike is 20 years old, the photo is rather recent, as evidence the gear he is wearing. I would assume he is running in a historic class. Forks look to be stock too.

Cheers, Phil

[bmw851]

Speaking of it why would one make adapters to keep the 280mm discs on a Sport that`s modified for track instead of using the 320mm discs made for those wheels and just make an adapter for the caliper ?

G.

I may have to do with the rules for the class he is racing in.
Vintage motocross limits travel on your suspension, for example.
While the bike is 20 years old, the photo is rather recent, as evidence the gear he is wearing. I would assume he is running in a historic class. Forks look to be stock too.

Cheers, Phil

Good call Phil, it is exactly that, G. there are many various classes in Post Classic racing here as I imagine elsewhere too most likely called the same, with lots of what you can can't do's, here it is usually referred to as Period 1, Period 2 and so on through to P6 and Forgotten Era as well in there somethere, and very roughly if something was readily available when the bike was made you can run it if want to, don't think anything had the 320mm rotors back then, hence I would think the 17's but 280mm Rotors, sure someone will correct me if I'm wrong

[Andrew2]

Progress.The frame is in getting powder coated.I should get it back by the end of the week.

Cheers
Andrew

[ducinthebay]

Andrew,
How much did the powder coating cost you? I am looking at my project and its basically a motor and frame right now, so it might be a good time to do that.

Cheers, phil

[Andrew2]

Andrew,
How much did the powder coating cost you? I am looking at my project and its basically a motor and frame right now, so it might be a good time to do that.

Cheers, phil

Phil,
I've been quoted $250 which includes sand/bead blasting the old paint and powder coating.I rang a few places and that was about average.From watching Youtube videos I would say it would be cheaper in the states though.

Cheers
Andrew

[bmw851]

Progress.The frame is in getting powder coated.I should get it back by the end of the week.

Kraft Cheese's Andrew don't forget the red cable ties as well

[ducinthebay]

I talked to a local guy yesterday and he inferred that it would cost between $300 - $600 to my frame. That includeds a bead blast to remove all the paint, primer, color coat , and clear coat on top. He wouldn't quote me over the phone. I have to bring it in to him.

Cheers, Phil.

[Andrew2]

That seems expensive Phil.I had one guy here who quoted high like that but he was a specialist restorer and quoted like one.I checked out S.F. and you have a lot of powder coaters to choose from so I would be getting some more quoted.I'm not sure why it needs to be primed and cleared though.
From Wikipedia-
The powder coating process involves three basic steps:

1-Part preparation or the pre-treatment
2-The powder application
3-Curing

From my understanding this is all they do,blast,coat and cure.I chose my powder coater because a mate has had 6 frames done by him and he's picky about his bikes (now that I've said that it will probably turn out crap ).

Cheers
Andrew

[ducinthebay]

Yeah, for that price, I'm thinking a regular painter is a lot cheaper.
or I can buy a lot of really nice rattle cans for that.
Cheers,
Phil

[paso750]

I'm not sure why it needs to be primed and cleared though.

It doesn`t. As Phil wrote those layers need to be removed.

I`m a bit surprised about the prices mentioned by Phil. I guess summing up the frame and all small bits I had powdercoated I ended up paying around €150. The frame itself did cost 80.
I did check several paintshops. Most said they painted only cars and the one I found who was willing to spray the frame quoted a few hundred € which made sense because they would have had to sand the whole thing (or get it media blasted), then primer, then filler, then paint. Eventually also clearcoat. There`s a lot of preparation and sanding required and most importantly a huge part of the paint used will not land on the frame but in the filters of the spray cabin which is usually heated as well. Hence the high price.
The powdercoater instead does media blasting and powdercoating inhouse. It`s not a dedicated restoration, car or bike shop (which no doubt would impact the price). He said resin in standard colours like shiny or semi flat black, silver, clear or red are purchased in sacks of 100kg and larger and wouldn`t be expensive. Powdercoating being an electrostatic process would suffer from very little overspray which is recovered, too. Hence not the issue of a normal paintjob. The only manual job he would have to do is mask threads or areas where bearings are fitted.
The most expensive he said was the electricity bill for the oven.
I`ve been a happy customer for approx. 10 years now

So I`m wondering how a powdercoater can quote more than a painter.
Of course there are differently priced resins on the market which may impact the price, but that much ?!

G.

[Andrew2]

I'm not sure why it needs to be primed and cleared though.

It doesn`t. As Phil wrote those layers need to be removed.

Ah yeah I see now.You're understanding of English is better than mine G but I did have half a dozen beers in me when I read it

Cheers
Andrew

[ducinthebay]

I talked to a local guy yesterday and he inferred that it would cost between $300 - $600 to my frame. That includeds a bead blast to remove all the paint, primer, color coat , and clear coat on top. He wouldn't quote me over the phone. I have to bring it in to him.

Cheers, Phil.

Actually, I wrote very poorly in hindsight. That was the sequence of the work. Bead blast all remnants of the past coatings, spray a primer, spray the color coat, spray a clear coat.

I think it a bit over the top, but I'll talk to him none the same for education, and hang uot with a guy named Lupe'.

[paso750]

so the 3-600 you mentioned is for a paintjob ?

[ducinthebay]

Its for bead blasting, primer coat, color coat, and clear coat.

Is the Sport frame powder coated form the factory, or is it wet paint?

Cheers, Phil

[Andrew2]

I got the frame back today and am very happy with it.The cost was $200 which included blasting,undercoat and powder coat.











Now to paint the motor and start reassembly.

Cheers
Andrew