CB550 Cafe Racer ..... It is finally done

Re: CB550 Cafe

You may want to pick up a bunch of those drill bits & some cutting oil; unless you have a good bit sharpener, you'll go threw a hand full by time you’re done with a rotor.
 
Re: CB550 Cafe

That was the drill bit that I was recommended, is there a better one out there for the job?
 
Re: CB550 Cafe

Just curious, why do you want the rotor drilled?

Brake rotors are extremely hard to drill accurately. I've seen many messed up ones. That said, I'm sure you are more than capable of doing it right. You have access to the right tools. All I can say is do it slow and use lots of cutting fluid. (I was going to say lube but didnt want this thread hijacked with a bunch of off color comments! :p )

I've done them in the past but it was on a large industrial drill press with very low feed rate and a rotation rate of about 60rpm. Slow process. I imagine you could do it faster but the disc I was drilling was unusually hard.
 
Re: CB550 Cafe

Cobalt is pretty good; It’s that or Carbide.
You will also want to try and drill the hole in one relatively steady pass because the stainless steel will work harden as you drill!

Also, I recommend at least 90 holes for good braking and weight reduction results.
Something like these:
http://www.vinmoto.org/gallery/v/VinMoto-Garage/album03/Godfferys-Garage-123/album185/Brake+Rotors+_+Thinned+and+Drilled/
 
Re: CB550 Cafe

Thank you Godffery,

And Terry, the only real reason I am doing it is because the customer wants it.
 
Re: CB550 Cafe

Hey guys I have some updates, I got the wheels all laced and trued. Tomorrow I will either get the wheels pin striped or the tires mounted. All new wheel bearings and I did a little bit more polishing.

_MG_5709.jpg


_MG_5710.jpg


_MG_5717.jpg


Future shock mounts (will have updates tomorrow )

_MG_5718.jpg


New headlight?

_MG_5719.jpg
 
Re: CB550 Cafe

That looks really good. I really like your speed hole pattern on the brake drum.
 
Re: CB550 Cafe

Thanks John, the rims are D.I.D.'s I believe they are from the 70's they had enough corrosion on them, that it sure looked like it.
 
Re: CB550 Cafe

Looks great, G. Any more info on that sprocket? Alloy?

And 43 teeth?? I went up to a 40-tooth, from the stock 37, and it's a little over geared for my liking...I can top the bike out at about 110mph (indicated), but it's only topped out because of revs, not lack of power. It feels like it wants to do more, but I don't like pushing it past 10,000rpm. Just something to think about.

Great work man!
 
Re: CB550 Cafe

Great build! Love how the engine turned out. Wheels look great also. I'll be tuning in.
 
Re: CB550 Cafe

Sprocket sizing is definetely something you gotta get right for your riding style. The stock cogs on my Thruxton are a 18 front and 43 rear. The previous owner raised it to a 19 front and a 40 rear. Give me nice low cruising RPM but I feel like I'd enjoy a little more low end acceleration.
 
Re: CB550 Cafe

I got the tires mounted up, now I am just on lunch waiting on the shock mounts to be welded. As far as the sprocket goes, the guy is just going to use this bike as a bar hopper/a weekend warrior. This will be his first bike so, I don't think he will be making any long hauls on it yet. When the time comes, we can change the sprocket. And speaking of the devil the welder just called and I am leaving now to get the frame.
 
Re: CB550 Cafe

Here is the update for today, I got the tires all mounted and trued. The shock mounts were welded up and its now a roller. I still need to do a lot of work but I am making up new spacers for the rear wheel. And I am just piecing it all together before it goes to the powder coater.

_MG_5721.jpg


_MG_5724.jpg


_MG_5722.jpg
 
Re: CB550 Cafe

So you mind sharing where you sourced the sprocket?
 
Re: CB550 Cafe

I think it was just an ebay find. The hub is a 750 hub. I made up new spacers and trued the wheel over a .5" to get the wheel to line up.
 
Re: CB550 Cafe

Ah, thanks!

On a side note, sure looks like a lot of filler on the BCR pieces. He's churning out enough bodywork to make quality moulds, you would think. They could be so much lighter... ::) Sorry, he irks me. Nothing to do with your build!
 
Re: CB550 Cafe

I know I am not impressed by the craftsmanship of Benjies stuff at all, I think the customer I am building the bike for got a reject part, or they might all be built to that quality. Here is just an idea I had, but he didn't go for it. Here are some more updates. Velocity stacks, rear fender/chain guard, rear brake stay from a xs650 cut and re-welded and the front brake assembly.

IMG_20111231_154418.jpg


_MG_5806.jpg


_MG_5811.jpg


_MG_5812.jpg


_MG_5813.jpg


_MG_5815.jpg


_MG_5819.jpg
 
Back
Top Bottom