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Banshee is a classic now and open to new builds.


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The frame is the last piece I haven't modified yet and the 3k from Lonestar for stock geo is pretty off putting to drop 30 pounds on a trail snail. Removable subframes are a nice touch same withy custom powder coat options. Just steal whatever Tfaith comes up with and try to mass produce it.

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4 hours ago, Fearnot said:

The frame is the last piece I haven't modified yet and the 3k from Lonestar for stock geo is pretty off putting to drop 30 pounds on a trail snail. Removable subframes are a nice touch same withy custom powder coat options. Just steal whatever Tfaith comes up with and try to mass produce it.

Does he get a cut on every frame sold?

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Well, I was not into the yfz 450 stuff on a banshee before. However after my conversation there is alot to be gained there. The guys who bought all the laeger jigs out of france are making a banshee with 450ish front suspension. That would be the one to copy if a guy was going to do that. A note on the lonestar frame, I believe that frame has a improved rear shock location.

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20 hours ago, DDQ said:

Exactly. The laegers and lonestar chassis' are much better than stock banshee, but it is super old technology and not as good compared to a modern design, like the yfzr. 

And rear shock change modification can be done to accommodate a yfzr shock to match the yfzr front end, but as tfaith discovered on my frame, the seat pan has to be modified. 

There is a super duper lot of research and suspension knowledge that goes in to designing a chassis like this, which is why tfaith is doing mine and I am not. I would recommend you buy several oem frames, including a complete yfzr and start measuring and experimenting. Get them on the track, test them, make modifications, etc. 

The other, easier option is to buy one of those tour de france banshee chassis' you are talking about and try to copy it without getting in legal trouble. 

 

I know how to design suspension. I have a problem wanting to make it to good at a specific thing though. Has to be good duning, track, whoops, jumps, etc. like the sundhal frame is a perfect example of this. badass baja bike, and suffers everywhere else because of it. I have a problem where I focus on one path and head straight down it. Like a decent frame would be with laeger pickup points, and honda 450 spindles. cr500 link, or no link(both are good in their own respects). The only downside to the 450 spindles is the kpi is 1 degree less. better for turn entry, worse for turn exit. I really need to put the laeger back together and check the castor. 

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  • 2 weeks later...

I can tell you right now that if you’re at the point of coming up with what it is that you want to offer, you’ve got a lot to contend with in the coming months/years.

If you can get a frame out the door for $1500 and break even, then it either isn’t good steel, the tabs are going to rip off, it won’t pass x-ray, or it isn’t going to be accurate at all. The weld count and material alone will cost that plan out. If I had to do a run of OEM geometry banshee frames that wouldn’t have me sweating in a courtroom, they’d be sitting at over $4k/pop. Yeah Lonestar does it for $3k but they have a legal team, in house QC, every welder has company certs, every batch of wire is accounted for, every stick of tube has paperwork, and a whole wad of engineerings are running around scared to death to put stamps on anything. If you change even the weld procedure from what any existing chassis has, their engineering stamp no longer applies to you and it probably wasn’t good enough for today’s standards to begin with. Do you know what filler wire Laeger’s used 15 years ago? I don’t and Mark probably doesn’t remember. Mark Laeger and Doug Roll did this shit 20 years ago when it didn’t really matter. Times are different.

Laeger’s also had 250R geometry but it wasn’t actually 250R geometry. To my knowledge, there was only 250R geometry aftermarket frame ever made that was true 250R geometry. Mine is the same with the YFZR. Laeger’s pro trax front end was great but you don’t need a protrax front end in any way. What made them great was nothing you couldn’t do with just good hardware on stock knuckles and 1 more modification. I know that last sentence is going to compel people to say I don’t know what I’m talking about, but I don’t give a shit because I dont make fabrication and engineering decisions based on “seems like” or “feels like.”

Now I’m not going to go into how to solve all of these problems because at this point you’ve established yourself as a direct competitor of mine, but for every 12 hours I spend in my shop, 3 more go to properly documenting it and another 3 on the phone sorting out just what the hell has to be done to make sure that I’m not going to spend the rest of my life paying someone’s family that died on one of my frames because they wanted to get shitty drunk at the fall ride in some desert in Oklahoma and jump 3 toy haulers for 80 views on YouTube (yes Dave but also not Dave).

I see what you’re wanting to do but also consider that your market will have people that you’re gonna have to really, really impress or people that aren’t gonna pay because they don’t know what they’re looking at.

Let’s also remember that Apex (not sure if that’s the correct name) did sell a turn key YFZ based race quad that used a lot of factory stuff and it was absolutely wicked on a track but literally no one bought them. Why? $14999. People would rather pay $20000 over 5 years than to pay $14999 once.

By far the biggest thing to me personally is that if you understand suspension geometry and vehicle dynamics, why are you stealing a design? I’ll be able to point at my chassis and look someone in their eyes and say, “See that? I made that shit.” That’s something you can’t buy and you certainly can’t steal it.


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@tfaith.
Ddq frame being designed for mx?
I need a desert setup.


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It sure is.

Got a desert design ready to go.

Pm me or text me if you don’t mind, I don’t wanna hijack this fella’s thread too much.


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59 minutes ago, tfaith08 said:

I can tell you right now that if you’re at the point of coming up with what it is that you want to offer, you’ve got a lot to contend with in the coming months/years.

If you can get a frame out the door for $1500 and break even, then it either isn’t good steel, the tabs are going to rip off, it won’t pass x-ray, or it isn’t going to be accurate at all. The weld count and material alone will cost that plan out. If I had to do a run of OEM geometry banshee frames that wouldn’t have me sweating in a courtroom, they’d be sitting at over $4k/pop. Yeah Lonestar does it for $3k but they have a legal team, in house QC, every welder has company certs, every batch of wire is accounted for, every stick of tube has paperwork, and a whole wad of engineerings are running around scared to death to put stamps on anything. If you change even the weld procedure from what any existing chassis has, their engineering stamp no longer applies to you and it probably wasn’t good enough for today’s standards to begin with. Do you know what filler wire Laeger’s used 15 years ago? I don’t and Mark probably doesn’t remember. Mark Laeger and Doug Roll did this shit 20 years ago when it didn’t really matter. Times are different.

Laeger’s also had 250R geometry but it wasn’t actually 250R geometry. To my knowledge, there was only 250R geometry aftermarket frame ever made that was true 250R geometry. Mine is the same with the YFZR. Laeger’s pro trax front end was great but you don’t need a protrax front end in any way. What made them great was nothing you couldn’t do with just good hardware on stock knuckles and 1 more modification. I know that last sentence is going to compel people to say I don’t know what I’m talking about, but I don’t give a shit because I dont make fabrication and engineering decisions based on “seems like” or “feels like.”

Now I’m not going to go into how to solve all of these problems because at this point you’ve established yourself as a direct competitor of mine, but for every 12 hours I spend in my shop, 3 more go to properly documenting it and another 3 on the phone sorting out just what the hell has to be done to make sure that I’m not going to spend the rest of my life paying someone’s family that died on one of my frames because they wanted to get shitty drunk at the fall ride in some desert in Oklahoma and jump 3 toy haulers for 80 views on YouTube (yes Dave but also not Dave).

I see what you’re wanting to do but also consider that your market will have people that you’re gonna have to really, really impress or people that aren’t gonna pay because they don’t know what they’re looking at.

Let’s also remember that Apex (not sure if that’s the correct name) did sell a turn key YFZ based race quad that used a lot of factory stuff and it was absolutely wicked on a track but literally no one bought them. Why? $14999. People would rather pay $20000 over 5 years than to pay $14999 once.

By far the biggest thing to me personally is that if you understand suspension geometry and vehicle dynamics, why are you stealing a design? I’ll be able to point at my chassis and look someone in their eyes and say, “See that? I made that shit.” That’s something you can’t buy and you certainly can’t steal it.


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250R A-arms bolt right up to the laeger. I will not have the capacity initially to be making a bunch of different parts. People being able to buy stuff and bolt it on is a good thing. I would not take a design that was being used by someone else and "Steal it". The frames are no longer in production and you cant get them. The plan is to make most of the bike out of 1020 US made DOM, I may decide to use 4130 on the bend bars, There is not that many feet of tubing in a banshee/hybrid frame. Sure if you only buy 3-5 sticks at a time you pay full pop. I have an established relationship with a steel yard and my pricing is good. I would like to keep the cost as low as I can. My cost for a certified welder is 250 a frame. That leaves $250 for tacking it together and fitting all the tubes. I understand your motion ratio reference on the protraxx. My experience comes from circle track chassis. I don't want to necessarily compete with people making expensive frames. I want the frame simple, not to far outside of the box, not alot of "special" parts. Buy it, bolt some shit on and go. "Oh hey, this thing has great pipe clearence and handles good". Thats what I want people to say.

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250R A-arms bolt right up to the laeger. I will not have the capacity initially to be making a bunch of different parts. People being able to buy stuff and bolt it on is a good thing. I would not take a design that was being used by someone else and "Steal it". The frames are no longer in production and you cant get them. The plan is to make most of the bike out of 1020 US made DOM, I may decide to use 4130 on the bend bars, There is not that many feet of tubing in a banshee/hybrid frame. Sure if you only buy 3-5 sticks at a time you pay full pop. I have an established relationship with a steel yard and my pricing is good. I would like to keep the cost as low as I can. My cost for a certified welder is 250 a frame. That leaves $250 for tacking it together and fitting all the tubes. I understand your motion ratio reference on the protraxx. My experience comes from circle track chassis. I don't want to necessarily compete with people making expensive frames. I want the frame simple, not to far outside of the box, not alot of "special" parts. Buy it, bolt some shit on and go. "Oh hey, this thing has great pipe clearence and handles good". Thats what I want people to say.

I’m not trying to piss on what you’re doing but I think you really need to sit down and re-evaluate this from a task-by-task start to finish standpoint.


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I was not trying to sound argumentative. I appreciate your input. For me most of the expense is in the tools. The time aspect for me is not really important(not saying it wont get to be that way). I used to fab chassis, I enjoyed the work, I enjoyed building things. My current career pays good but is boring as hell. There is very little thinking. This is something I am doing for enjoyment, and hopefully it pays for itself. I might finish the first one and go straight back to the drawing board because it sucks. Failure is the best teacher.

I have been running some math on these front ends, the bump steer is garbage on all of them. There seems to be something to be gained in changing the inner pivot a bit, but short of redesigning the way these things steer there does not seem to be a good solution. On pavement cars we can get that shit perfect, zero change on the RF and a tiny bit of bump out on the LF.  These things bump in massively, that can be made to work if you slice the bike in half and only worry about one corner at a time. but in a straight ahead scenario its going to act like a speed brake. Maybe there is not enough grip to matter, I wont know for awhile.

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