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Old 11-22-2019, 05:10 PM   #61
MikeJustice55
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Alright, so this is starting to come along, i think i need to get a rear tire to be able to actually figure out where i want to weld my axle plate. Also after mounting the shock i need to try to move it forward at least 1.5 inches to be able to fit a tire without putting a ridiculous stretch on the rear.(so ill be cutting off the work i did today) I dont exactly want it to look like a dragster or a hillclimber with a 4ft swing arm. We gotta keep it looking like a restomod with a little class.
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Old 11-22-2019, 05:21 PM   #62
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Default Re: 1966 Bsa 650 on a budget

In photo #2, showing your top run of tubes in the foreground: Might you have the (shock, etc.) clearance to make the bend earlier? I mean the bend where the tubes converge on the downtube. The bends in the pic look about like Triumph's factory angles, and those stick out awkwardly when you mount a seat with a skinnier front -- as you might want to do.

I don't know if I'm being even slightly clear. I mean: think about giving your rear top tubes a 30 bend, beginning farther toward the bike's rear, instead of the roughly 45 bend they appear to have now.

Whew.
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Old 11-23-2019, 04:14 AM   #63
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Default Re: 1966 Bsa 650 on a budget

What about all those fancy mountain bike shocks ?
im pretty sure there shorter than what you have there.
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Old 11-23-2019, 04:43 PM   #64
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Quote:
Originally Posted by Ratso View Post
In photo #2, showing your top run of tubes in the foreground: Might you have the (shock, etc.) clearance to make the bend earlier? I mean the bend where the tubes converge on the downtube. The bends in the pic look about like Triumph's factory angles, and those stick out awkwardly when you mount a seat with a skinnier front -- as you might want to do.

I don't know if I'm being even slightly clear. I mean: think about giving your rear top tubes a 30 bend, beginning farther toward the bike's rear, instead of the roughly 45 bend they appear to have now.


Whew.
Ah, i see what you mean with that ill have to mock it up to see whats going to happen with the seat issue. I want to mount the back side of the shock before the bend so the bend in the tubes will be more for looks and nice lines. It may be too tight of a bend as youre saying though. I wont know untill i get it set up.
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Old 11-23-2019, 04:44 PM   #65
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Quote:
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What about all those fancy mountain bike shocks ?
im pretty sure there shorter than what you have there.
I used one of those for a seat mount before but i dont think they have the weight capacity for the whole rear suspension with my fat ass on it.
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Old 11-24-2019, 02:08 AM   #66
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Default Re: 1966 Bsa 650 on a budget

check out AVO , I've used them for Vincent front shock and am pretty sure they make them for the rear too. A 'pedal pusher' shock won't cut it on a m/c IMHO.

There are other shocks used on Vincent's that have good reviews . Armstrong, SPAX.

Is running a pair in tandem a non starter?.

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Old 11-24-2019, 08:08 AM   #67
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check out AVO , I've used them for Vincent front shock and am pretty sure they make them for the rear too. A 'pedal pusher' shock won't cut it on a m/c IMHO.

There are other shocks used on Vincent's that have good reviews . Armstrong, SPAX.

Is running a pair in tandem a non starter?.
Yeah i just need to modify the one i bought. Monshock is cheaper ($45) and looks cool imo. I am keeping close track on the money part of this build and want to keep it under $2k from start to finish. Thats what makes this challenging for me.
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Old 11-25-2019, 05:37 PM   #68
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So i put the jugs on with new piston rings, almost forgot my lifters though. Then inspected the gear selector plate before putting the trans in and it looked almost like new. There was hardly any wear on it at all. Also checked for any chipped teeth or anything else unusual and all looked good. The bearings were also in very good shape so i put some fresh oil all over everything and put it back in. Also managed to take 1 3/8" out of the shock mount on the frame and made the rear shock mount and crossmember for the upper part of the swingarm today. Ill get the swingarm in place for the wheel and take a pic tomorrow if i get a chance.
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Old 11-26-2019, 05:25 PM   #69
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Here is the basic stance. Thats a 5.5 inch stretch from the original swing arm. Ill be working on the front end now to put a rim on the front and set it on the table so i can really get measurements for my axle plate for the rear. Then lots of bracing and measuring to make sure nothing moves when i weld it. It had an older sportster front end on it just finger tight so ill be machining and fabbing spacers to fit the harley front end. (I would prefer bsa front end and wheels but i dont have them and i would like to have disc brakes anyway)

How low is too low? I plan on keeping the center stand and mounts but may modify the stand a bit.
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Old 11-26-2019, 10:26 PM   #70
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Default Re: 1966 Bsa 650 on a budget

I think there's something basic that I don't understand about how your suspension is going to work.
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Old 11-26-2019, 10:36 PM   #71
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Default Re: 1966 Bsa 650 on a budget

For comparison, here's a Vincent rear end; the seat mount is pretty clearly part of the front frame member. ... So, are the top tubes (with your seat mounted to them) going to move fore and aft as the suspension deals with road irregularities?

Sorry if I'm simply failing to see something obvious.
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Old 11-27-2019, 04:02 AM   #72
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Default Re: 1966 Bsa 650 on a budget

This shows how Vincent did it in their last year; the seat is on a subframe.

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Old 11-27-2019, 10:51 AM   #73
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My seat will be mounted to the front part of the frame as well. The only thing that will be mounted to the swingarm assembly is my fender and chain guard. Vincent is a very similar set up with dual shocks instead of a mono shock.
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Old 11-27-2019, 12:39 PM   #74
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Default Re: 1966 Bsa 650 on a budget

I am gonna shut up and see what happens next.
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Old 11-27-2019, 07:51 PM   #75
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Quote:
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I am gonna shut up and see what happens next.
Haha i dont mind hearing any ideas at all. This was a new idea for me and there are a lot of things I overlooked right away. At least i know i can always take the shock out, weld some tubing up for a rigid hardtail and it will still be cool. Might throw hours of work out the window but hey, shit like that happens sometimes.
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Old 11-28-2019, 12:57 AM   #76
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Default Re: 1966 Bsa 650 on a budget

Yeah well a guy with your skills, and I guess I can say your vision, it's probably a good corrective to have to throw time and deeds out the window once in a while. Plus, should you decide to go in a different direction, I have no doubt you could make a rear frame like this one from scratch.

Wish it was easier to see what's going on there in frameland.

* Pic is from this site's Board, p. 303. The thread is "Great wrap up ... ," and it's post #1.
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Old 12-02-2019, 12:00 AM   #77
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Quote:
Originally Posted by Ratso View Post
Yeah well a guy with your skills, and I guess I can say your vision, it's probably a good corrective to have to throw time and deeds out the window once in a while. Plus, should you decide to go in a different direction, I have no doubt you could make a rear frame like this one from scratch.

Wish it was easier to see what's going on there in frameland.

* Pic is from this site's Board, p. 303. The thread is "Great wrap up ... ," and it's post #1.
Very cool bsa. Looks fast.
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Old 12-02-2019, 12:09 AM   #78
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So i knocked out the old bsa cups and machined in some inserts to run standard 1 inch roller bearing and cups so the harley front end fits. We keep these bearing sets in the tool room for some of the shop equipment so i got them for free along with the steel scraps i used to make the adapters. These are exact measurements i used if anyone wants to put an old sporty front end on a bsa. I made everything .001 press fit. (Tapped in with a hammer nice and tight) now im going to disassemble the front end, put new seals in and shorten the spings up 2 inches and assemble with tires to see if im happy with the ride height.
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Old 12-02-2019, 12:11 AM   #79
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Also, the adapter i made for the front end is - 1.125 inches. So that dropped the front 1 1/4 already so im hoping 2 more inches will give it a nice look.
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Old 12-04-2019, 10:45 PM   #80
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Default Re: 1966 Bsa 650 on a budget

That's a lot of work to get HD bearings on the neck. I have a 68 TR6 and have a sporty front end on it. I machined off the brake and fender tabs and welded a tab on the right leg to fit the Triumph brake drum. Lobrow sells adapters for the neck bearings to install the sporty trees. Is your Beezer different?? Thought they might be the same.
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