Author Topic: Vintage Speed Part Mashup - 1976 CB750F (Read 67165 times)

calj737 · « **Reply #125 on:** June 19, 2015, 08:12:35 AM »

You can use that. Or, order them from Slingshot, or, buy a brake line tubing bender tool, plus the flaring tool, and buy the ferrules you need and make your own.

I dealt with Slingshot to make mine, but he's a neighbor

754 · « **Reply #126 on:** June 19, 2015, 08:24:10 AM »

It won't work unlesd you have a seat at proper depth like stock caliper..
And you can't run a washer unless the hex portion is bigger, to form an even surface to bear hard enough. On the washer to seal.
Just search for 3/8-24 to AN-3........straight adaptor.

slikwilli420 · « **Reply #127 on:** June 19, 2015, 09:02:56 AM »

Frank, I found the adapter which I plan to use, but I like Cal's idea of a hard line from the master to the lower tree. How would I make that work?

754 · « **Reply #128 on:** June 19, 2015, 09:15:18 AM »

What's wrong with. Braided top and bottom?

slikwilli420 · « **Reply #129 on:** June 19, 2015, 10:44:11 AM »

Nothing wrong at all. It's probably the way I will go but always looking at other options. A hard line sounds different and interesting.

SOHC4 Cafe Racer Fan · « **Reply #130 on:** June 19, 2015, 11:14:20 AM »

I was wondering about the hard line from the MC to the triple tree. Won't you need it to be flexible for steering travel?

calj737 · « **Reply #131 on:** June 19, 2015, 11:35:16 AM »

Quote from: CB750 Cafe Racer Fan on June 19, 2015, 11:14:20 AM

I was wondering about the hard line from the MC to the triple tree. Won't you need it to be flexible for steering travel?

Come now, Don, think about that! The MC is statically fixed on the handlebar/clip-on. The relationship between MC, a spot on the tree, and the tree to caliper doesn't change provided these fittings occur on the same side.

The issue of flexibility comes into play when the line from the MC runs past the headlight and down to the splitter, then loop it's way over to the MC. If you did use a hard line (and I'm with Frank, I like SS) it could leave the MC and plug into a fitting on the top clamp on the MC side of the stem. Exit the top clamp underneath through a fitting, down to top of lower clamp to another fitting, then exit underneath on either both side. Let's say it exist on left side for single disc. Fitting to a shaped, hard line hooking it's way to caliper. No length or distance changes whatsoever in the lines.

I used SS instead and have done it this way (excluding the top clamp) on the Joker, and merged from SS to hard line for the caliper line. (Controlled the alignment and length a little bit better for wheel interference).

Tintop · « **Reply #132 on:** June 19, 2015, 12:47:39 PM »

Quote from: calj737 on June 19, 2015, 11:35:16 AM

Quote from: CB750 Cafe Racer Fan on June 19, 2015, 11:14:20 AM
I was wondering about the hard line from the MC to the triple tree. Won't you need it to be flexible for steering travel?
Come now, Don, think about that! The MC is statically fixed on the handlebar/clip-on. The relationship between MC, a spot on the tree, and the tree to caliper doesn't change provided these fittings occur on the same side.

The issue of flexibility comes into play when the line from the MC runs past the headlight and down to the splitter, then loop it's way over to the MC. If you did use a hard line (and I'm with Frank, I like SS) it could leave the MC and plug into a fitting on the top clamp on the MC side of the stem. Exit the top clamp underneath through a fitting, down to top of lower clamp to another fitting, then exit underneath on either both side. Let's say it exist on left side for single disc. Fitting to a shaped, hard line hooking it's way to caliper. No length or distance changes whatsoever in the lines.

I used SS instead and have done it this way (excluding the top clamp) on the Joker, and merged from SS to hard line for the caliper line. (Controlled the alignment and length a little bit better for wheel interference).

You will need flexible line from the lower triple to the caliper to account for suspension travel. Easy enough to make a hard line from the MC to the lower triple. However, I won't take it through fittings on the top triple. Every extra fitting is a leak point.

SOHC4 Cafe Racer Fan · « **Reply #133 on:** June 19, 2015, 02:16:50 PM »

Quote from: calj737 on June 19, 2015, 11:35:16 AM

Quote from: CB750 Cafe Racer Fan on June 19, 2015, 11:14:20 AM
I was wondering about the hard line from the MC to the triple tree. Won't you need it to be flexible for steering travel?
Come now, Don, think about that! The MC is statically fixed on the handlebar/clip-on. The relationship between MC, a spot on the tree, and the tree to caliper doesn't change provided these fittings occur on the same side.

Duh! Momentary mental lapse!

slikwilli420 · « **Reply #134 on:** August 17, 2015, 08:10:13 AM »

Well, I am officially at the next level of fabrication! I just got my mill set up in my garage and started modifying my top triple clamp to better reflect my vision for it. This opens up a whole world of opportunity for this build and any future projects.

I will also be getting my 8x16 lathe set up in my basement in the next few weeks.

My head is literally spinning with ideas. The first major task I am taking on is getting a jig built to replicate a Seeley swing arm for this bike. I know that I already have the Dresda copy but I want to have options, don't I?! I already have most of the raw material for the arm itself but need to design a plate for the hold down fixtures.

I have a variety of other things I want to tackle as well, and once I am up and running, I will be offering services here, with an initial focus on custom triple trees. I know there are already quite a few options but my focus will be on the one-off market. The guy who has looked high and low for something especially unique will be my target.

At any rate, here are a few pics of my work last night.

calj737 · « **Reply #135 on:** August 17, 2015, 03:06:15 PM »

What's the material you used on that?

seanbarney41 · « **Reply #136 on:** August 17, 2015, 03:33:51 PM »

How much to do me up a GL1000 top triple?

SOHC4 Cafe Racer Fan · « **Reply #137 on:** August 17, 2015, 04:34:18 PM »

Dime City makes a billet triple for the GL1000 for $129. It is pretty basic in design with stock offset. It also has mount points for gauges and ignition. http://www.dimecitycycles.com/vintage-cafe-racer-caferacer-bobber-brat-chopper-custom-motorcycle-steering-parts-billet-aluminum-gl1000-top-triple-tree-12-2145.html

So, if you are going to do a GL1000 triple, you may want to offer something different in terms of design to differentiate it.

slikwilli420 · « **Reply #138 on:** August 18, 2015, 04:09:54 AM »

Quote from: calj737 on August 17, 2015, 03:06:15 PM

What's the material you used on that?

I believe the material is 2024 since that's what I could get at the time.

Quote from: seanbarney41 on August 17, 2015, 03:33:51 PM

How much to do me up a GL1000 top triple?

Sean let's talk about what you want. I have almost 20 different designs or we can design something else if you have some ideas. Send me a PM and we'll talk.

SOHC4 Cafe Racer Fan · « **Reply #139 on:** August 18, 2015, 06:14:29 AM »

Custom one off triples! Now we're talking!

slikwilli420 · « **Reply #140 on:** August 18, 2015, 07:38:25 AM »

Don, I had such a problem finding what I wanted since I needed a wider spread and wanted something that looked period. I want to be able to help the guy out who can't find what he wants and loves the feel of a handmade one off part. Here is a pic of the designs I have come up with so far. They could all be recreated with custom offset and spread from your choice of material thickness. Im not quite ready to advertise to the world but if someone sees this post and is interested, I'd be happy to try and help.

754 · « **Reply #141 on:** August 18, 2015, 08:11:21 AM »

What kind of mill, is it CNC....nice work.

SOHC4 Cafe Racer Fan · « **Reply #142 on:** August 18, 2015, 08:27:00 AM »

Quote from: slikwilli420 on August 18, 2015, 07:38:25 AM

Don, I had such a problem finding what I wanted since I needed a wider spread and wanted something that looked period. I want to be able to help the guy out who can't find what he wants and loves the feel of a handmade one off part. Here is a pic of the designs I have come up with so far. They could all be recreated with custom offset and spread from your choice of material thickness. Im not quite ready to advertise to the world but if someone sees this post and is interested, I'd be happy to try and help.

Nice designs and finished product. When ready, you should definitely list yourself in the classified services section. This will really help out members!

slikwilli420 · « **Reply #143 on:** August 18, 2015, 08:37:20 AM »

Quote from: 754 on August 18, 2015, 08:11:21 AM

What kind of mill, is it CNC....nice work.

Water jet for the basic shape. Boring head to final size the stem and fork holes. Then a fair amount of hand finishing.

Quote from: CB750 Cafe Racer Fan on August 18, 2015, 08:27:00 AM

Nice designs and finished product. When ready, you should definitely list yourself in the classified services section. This will really help out members!

That is definitely my intention. I want to take this low and slow to start because this is a hobby and I have to find time here and there to make it happen. Hopefully Sean will be interested and he can play test subject as my first customer.

MessnerMoto · « **Reply #144 on:** August 18, 2015, 09:19:44 AM »

I like simple design! Nice work!

seanbarney41 · « **Reply #145 on:** August 18, 2015, 01:25:02 PM »

Quote from: slikwilli420 on August 18, 2015, 04:09:54 AM

Sean let's talk about what you want. I have almost 20 different designs or we can design something else if you have some ideas. Send me a PM and we'll talk.

honestly, not too worried about looks, would be happy with a lump of alloy with holes in it as long as it works good. pming...

knottedknickers · « **Reply #146 on:** August 19, 2015, 06:27:40 AM »

Quote from: slikwilli420 on August 18, 2015, 07:38:25 AM

Don, I had such a problem finding what I wanted since I needed a wider spread and wanted something that looked period. I want to be able to help the guy out who can't find what he wants and loves the feel of a handmade one off part. Here is a pic of the designs I have come up with so far. They could all be recreated with custom offset and spread from your choice of material thickness. Im not quite ready to advertise to the world but if someone sees this post and is interested, I'd be happy to try and help.

I like your designs--especially the ones in Triple Clamps 2.jpg. I'm just wondering why most of them have a relief cut for a pinch bolt on the stem... Is that necessary? I noticed that the one you made above doesn't have a pinch bolt, so that made me look twice.

slikwilli420 · « **Reply #147 on:** August 19, 2015, 07:13:14 AM »

Quote from: knottedknickers on August 19, 2015, 06:27:40 AM

I like your designs--especially the ones in Triple Clamps 2.jpg. I'm just wondering why most of them have a relief cut for a pinch bolt on the stem... Is that necessary? I noticed that the one you made above doesn't have a pinch bolt, so that made me look twice.

The stock unit comes with a pinch bolt. Originally I was going to use a stem that was patterned after the stock CB one, but then I found the Ceriani stem with tension damper knob. That setup does not require the pinch at the top, but rather has a nut that is a tolerance fit to the inside of the top clamp. That fit eliminates the play that might be present in the other design. These are the designs I have to date, but they are by no means the limit of what can be done. I could combine features from each based on what the user likes and what is needed for the particular application. I can also provide a variety of clamping systems (Allen head, ARP 6pt and 12pt, etc) as well as different thicknesses.

Godffery · « **Reply #148 on:** August 22, 2015, 03:00:43 PM »

That is some beautiful work man!

BTW; Did I send you one of those Phenolic Caliper Pistons? Pretty sure I did, but want to make I didn't leave you hanging on that deal.

slikwilli420 · « **Reply #149 on:** August 22, 2015, 08:05:01 PM »

Quote from: Godffery on August 22, 2015, 03:00:43 PM

That is some beautiful work man!

BTW; Did I send you one of those Phenolic Caliper Pistons? Pretty sure I did, but want to make I didn't leave you hanging on that deal.

Thanks! Much appreciated. I'm trying to keep the unique old school race part look to everything.

I have all three rotors done by you but never did pick up the pistons since I switched calipers. I believe the Lockheed units have aluminium pistons stock.

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Author Topic: Vintage Speed Part Mashup - 1976 CB750F (Read 67165 times)