Beat The Clock

[JRK5892]

Re: 360 bobber/Brat new tires update

Thanks man. Hey is he still around? What a killer bike he did. Wonder what he did with the birds nest wiring that was in the factory light? If you see him tell him to stop in and see us.

Well Marc,...vintage Beer cans..., Ok I can dig it. Wouldn't be too bad. It would be cool to find a couple of very old copper or brass containers of some sort too. Good stuff my friends, good stuff..

Hey Joe would it hurt your feelings too much if I decided to make 2 girder front ends? If our bikes are going to resemble each other we might as well go all the way. I think it would look kick ass. However, Just putting different paint on them will give them their own idenitity. To be honest I'm still kicking around the Swagger trees. I really need to you to see what he has mocked up. It's pretty f'n sweet!

OOH HELL YA TROY! let me know if you need any $ or a set of tree's or anything! i can get you anything you need. after you are done send them both to me and i can lay some powder on them. I have a new powder that looks almost just like brass! since they come apart you can decide what you want what color and i can hit that up for you!!! man that would be AWESOME!

 

[my94f2]

Re: 360 bobber/Brat new tires update

OOH HELL YA TROY! let me know if you need any $ or a set of tree's or anything! i can get you anything you need. after you are done send them both to me and i can lay some powder on them. I have a new powder that looks almost just like brass! since they come apart you can decide what you want what color and i can hit that up for you!!! man that would be AWESOME!

show us this said powder. i wanna see

 

[JRK5892]

Re: 360 bobber/Brat new tires update

there is a whole line of powder dedicated to metal finishes... we have been playing with them for a few weeks now... some wild stuff... i do not have them on my PC here but i will have Sean send me a pic of it... he is in the shop right now. we have been shooting sample bottles for our displays for the past few days... this powder is VERY picky to work wtih but we have got it down, take a bit diff prep work

polished with our new clear over it... NO MORE DULLING DOWN when cleared!

black chrome

custom job with the chrome doing a fade with oven temps

and my personal fav

I am telling you Troy, if you can build the front ends i can do some WILD stuff with powder on them to really make it POP!

 

[troybilt]

Re: 360 bobber/Brat new tires update

Wow bro, I like them all. Love that last one. I think a a set of forks done up would be over the top. I'm still considering Swags trees, however right now I'm looking at funds to see where I'm at. I also need to look at the schematics for the girder to see if it is something that I can pull off. I actually feel pretty confident in my welding/fab skills and now I have my garage back. It is now empty of hay ;D.

Since custom trees are something that Swagger can fab up for anyone I wanted to share what he came up with for me. We've talked about a few things and he came up with some ideas that rock. He even has a mock up photo of the trees. So Swag if you are out there would you mind posting up what you sent me? I wasn't able to pull it off pm that's why I'm asking. Thanks, Troy

 

[my94f2]

Re: 360 bobber/Brat new tires update

there is a whole line of powder dedicated to metal finishes... we have been playing with them for a few weeks now... some wild stuff... i do not have them on my PC here but i will have Sean send me a pic of it... he is in the shop right now. we have been shooting sample bottles for our displays for the past few days... this powder is VERY picky to work wtih but we have got it down, take a bit diff prep work

polished with our new clear over it... NO MORE DULLING DOWN when cleared!

black chrome

custom job with the chrome doing a fade with oven temps

and my personal fav

I am telling you Troy, if you can build the front ends i can do some WILD stuff with powder on them to really make it POP!

the last pic your chrome powder?

 

[Swagger]

Re: 360 bobber/Brat new tires update

That's cool Troy...I can't pull it up either so I'll work something up and post here and probably the for sale area. The short story is, if you need it machined or fabricated I can do it.

 

[JRK5892]

Re: 360 bobber/Brat new tires update

the last pic your chrome powder?

last one is trans gold

 

[troybilt]

Re: 360 bobber/Brat new tires update

rode to my local shop today and took my camera.

I was told this is a 1971 Honda SL 175. The guy at the shop didn't have any idea "what the hell it looks like or what is was based on", but he said he loved it. He is selling it for the owner. I'm sure boardtrack was pretty much his inspiration. I like how he left the forks and handlebars raw. So this is the fork that I've been eyeing. If a vintage looking shock could be used I think it could work for me.

The bike is for sale. Asking price $2500. If anyone is interested you can send me a pm. With a little bit of work i think it could be very cool.

 

[CresentSon]

Re: 360 bobber/Brat new tires update

Brother, your ride is tits... but I am not digging that thing at all. :-\

 

[troybilt]

Re: 360 bobber/Brat new tires update

Yeah I hear ya. I'd have to change a few things for sure. I love old boardtrack racers and I think the builder made an attempt with a general boardtrack in mind but with his own rendition. I think with a little work it could be cool. However, its the forks that are catching my eye. Maybe not exactly like that but maybe something simular. I'm thinking with the right color and a vintage looking shock and the right headlight...

 

[chrisf]

Re: 360 bobber/Brat new tires update

Looking at the size of the coils and the leverage ratio he used (again, all by eye), that thing is running an insane spring rate and stressing the bejesus out of the stem.

If you go this route, make sure you switch to tapered steering bearings--if you haven't already. I'd also look mountain bike shocks or really small scooter shocks. Just keep the spring rate down. One big bump and I could see the threads shearing right off the stem.

I'd consult heavily with Swagger on this one. I bet he has a lot to add.

--Chris

 

[Kev Nemo]

Re: 360 bobber/Brat new tires update

Looking at the size of the coils and the leverage ratio he used (again, all by eye), that thing is running an insane spring rate and stressing the bejesus out of the stem.

If you go this route, make sure you switch to tapered steering bearings--if you haven't already. I'd also look mountain bike shocks or really small scooter shocks. Just keep the spring rate down. One big bump and I could see the threads shearing right off the stem.

I'd consult heavily with Swagger on this one. I bet he has a lot to add.

--Chris

And considering what Chris said, think about where that coil is pointing; "Oh shit!" won't be the only thing going through your head if that spring comes flying off!

 

[Docta Jones]

Re: 360 bobber/Brat new tires update

I'm sorry, but is that shock actually doing anything? It doesn't look like there are any moving parts...

 

[Wonton]

Re: 360 bobber/Brat new tires update

Yep! I thought I had seen that bike before over at Honda Twins. I had no idea why it had made an impression on me. Apparently there was something to like about it ............and I agree, that suspension is sketchy.

 

[troybilt]

Re: 360 bobber/Brat new tires update

Yep! I thought I had seen that bike before over at Honda Twins. I had no idea why it had made an impression on me. Apparently there was something to like about it ............and I agree, that suspension is sketchy.

Looks way better in that photo, hehe.

Hey chris I was actually thinking about a mountain bike spring as well. That is if I went with a simular design. Although, I jumped up and down on it pretty hard and it didn't seem stiff at all. I was actually surprised. The biggest problems I see with the design is that the wheel has to articulate forward and the stresses placed on the stem threads. I didn't notice the placement of stresses until you pointed that out. So thanks man. I think there has to be better designs out there. However, I would be interested to see how this thing rides because i think improvements could be made to this design. So yeah I think the tapered bearings is good advice. And I think with this design maybe creating a larger top tree and connecting the top tree with the bottom would help distribute the forces more evenly. Oh yeah, And I would deffently consult with an engineer before deciding on a design. But brother thanks for the advice. It is greatly appreciated.
So I'm still looking at designs and this is just one.

Kev what chris is saying is that the angle of the shock would put a majority of the stresses on the stem threads. I figure if it sheared the threads at the stem the shock would stay where it is at still connected to the bottom tree. You would have way bigger problems than worrying about the spring comming off and at you

Doc Jones it pivots at the bottom tree and of course at the shock. Here:

 

[Swagger]

Re: 360 bobber/Brat new tires update

I wouldn't worry about tearing the threads, in this case the primary stress is in shear against the stem itself. I doubt it'd be an issue...breaking I mean.

However....I wouldn't ride that setup or one similar to it, above say 25mph. As Troy stated, the wheel's axle (and hence hte wheel as well) travels in a pretty drastic arc, so nearly every parameter of the front geometry will exist in a nearly constant state of flux. The wheelbase will change constantly depending on what you're doing....like....riding it. On the gas you'll notice a little lofting but nothing wacky....on the brakes that thing will stand up in the front like mad and could conceivably (more than likely) net you a case of un-savable tank slappers. Not only will the wheel base shorten considerably under braking, but as the axle travels rearward your trail (and wheelbase again)will change to the point that the front end could 'caster' like a shopping cart. That doesn't sound all that bad until you remember that the weight transfers forward when braking (or just decelerating)...think on that for a bit.
Now think about the last shopping cart you had with the eff'd up front wheels...shaking back and forth.........

Not good.

 

[Flugtechnik]

Re: 360 bobber/Brat new tires update

Seems like something like those girder forks would be the way to go. It's almost a double-wishbone suspension, in very rough form. Design it up so the forks aren't so long.

 

[troybilt]

Re: 360 bobber/Brat new tires update

Swagger, that is some awesome information! I've noticed simular designs before and I always wondered about the forward articulation, but never even thought about what would happen under braking conditions. Thank you bud!

Seems like something like those girder forks would be the way to go. It's almost a double-wishbone suspension, in very rough form. Design it up so the forks aren't so long

+1

 

[JRK5892]

Re: 360 bobber/Brat new tires update

I love how smart you guys are... all i could think of was

SHIT THIS CHICKS HOT

 

[dcwp]

Re: 360 bobber/Brat new tires update

Stem bearings are not to be fucked with. When I first got competitive about mountain bikes, I was using a mid-range bike that wasn't beefy enough for serious riding. Bombing down a rough hill one day the force jarred the headset right out of the race and cracked the frame around the bearings. "Oh shit" is exactly what I said just before making the rest of the descent on my face.

After that I still never went with suspension, but I always bought frames with heavy duty front ends.

Any way, that is a fun front end set up. As long as you can make it work it could be pretty cool.