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If the weld breaks, there's still two other wheels they can roll on.
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Dec 19, 2012 05:31
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| # ? Jun 11, 2024 19:00 |
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Ugly welds can be plenty strong. There's no way to tell from those photos how much penetration they've got or anything like that. You calling their welding abilities into question? Geometry, on the other hand...
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Dec 19, 2012 05:39
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Can you weld a couple pieces together then cut them in half to see if the metal is solid all the way through both pieces? It's hard to tell just by looking at these pictures, although MIG welding a single pass around pipe like this is something I find very difficult. It's not really the best process for it. The geometry could use some work too on the triangulation. I am not sure what you think the braces are doing in the bends like that, but it's probably not what you think it is. I don't know a lot about motorcycle side carts, but I think you might be in a little over your head here if this is meant for serious racing not just driving around in your back yard. Just my two cents.
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Dec 19, 2012 06:44
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I just tried to find example of butt welded single pass MIG pipe as examples and I couldn't even find one. It's really not the right process for this sort of thing.
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Dec 19, 2012 06:52
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No you don't get it man... ugly welds can be strong!
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Dec 19, 2012 07:01
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eggyolk posted:Somebody rides around this awesome thing around Brooklyn all the time. she's perfect. Snowdens Secret posted:I want to like this but for every one that gets 'finished' and ridden around there are like a thousand that get ruined and trashed or listed as 'project bikes' on CL for $$$$, many of which started out as perfectly viable runners before they were processed. Good on that guy for actually keeping it moving and here's hoping it's a genuine survivor and not a nice bike he acid washed and crap to get 'just the right patina' etc. eggyolk posted:
GnarlyCharlie4u fucked around with this message at 07:29 on Dec 19, 2012 |
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Dec 19, 2012 07:25
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 Ugly welds aside. The main thing I would be concerned about here is that neck. That poo poo is scary for a street bike let alone anything you would consider pushing to its limits. You basically went from 1 or 2 failure points to having at least 3 or 4 points where that neck can fail. The only time I have seen goosenecks like that has been on weird show bikes that have no pretensions of being ride able bikes. In fact my roommates bike has a very mild gooseneck and it almost broke. That was from very normal riding and not anything approaching racing.
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Dec 19, 2012 08:18
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Holy hell this thing is nuts https://www.youtube.com/watch?v=-IHrkCw8dZI
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Dec 19, 2012 13:47
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2ndclasscitizen posted:Holy hell this thing is nuts Jesus. It looks like you could 12 o'clock that thing by sneezing at an inopportune moment.
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Dec 19, 2012 13:56
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I didn't do the welding. I don't know poo poo about welding. I didn't design it, I don't know poo poo about designing sidecars. So far I swapped cylinders and laced the rear wheel. The other guys in the project have built multiple street sidecars before and decided on the shape based on reading articles and talking to other people who race vintage sidecars. As should be obvious in those photos, the frame is like 30-40% done. A significant number of bracing tubes are yet to be added, especially around the steering head. You guys are the least fun part of the internet. I'll be sure not to show you any of our t-shirts lest you be concerned over the strength of the weaving processes used!
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Dec 19, 2012 14:36
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Alright, enjoy your deathtrap I guess. Sorry!
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Dec 19, 2012 15:23
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Rev. Dr. Moses P. Lester posted:I'll be sure not to show you any of our t-shirts lest you be concerned over the strength of the weaving processes used! Would you rather we be like every other bike forum on the internet and say HELL YA BRAH LETS SEE SOME WHEELIE PICS Can you seriously look at those welds and say to yourself "Yeah, thats something I would take to the absolute limit at a racetrack with another human being in it"? I'm willing to give it the benefit of the doubt if its less than half done, but man, there is a reason you dont see that poo poo on actual race bikes.
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Dec 19, 2012 15:45
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Jim Silly-Balls posted:Can you seriously look at those welds and say to yourself "Yeah, thats something I would take to the absolute limit at a racetrack with another human being in it"?  Yup. But I also have plates in my face 
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Dec 19, 2012 15:57
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Jim Silly-Balls posted:there is a reason you dont see that poo poo on actual race bikes. Seriously? Racing history is full of cludges and "improper" engineering. The legendary John Britten seriously hurt his test rider on the first V1000 when the first version of his carbon fiber front end just loving sheared under hard braking. Colin Chapman famously installed a sheet of card spray painted silver instead of a firewall on an F1 race car. Don't even get me started on guys like Burt Munroe. Edit: Pictures for the Picture God 
ReelBigLizard fucked around with this message at 16:58 on Dec 19, 2012 |
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Dec 19, 2012 16:53
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Look at the frame on that thing. Yes it's bendy but it's not just filled with a bunch of rather sketchy looking welds. He used a pipe bender to shape the frame it appears. I don't know enough about welding to have any real opinion, but I think if you're going to race something you probably should...
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Dec 19, 2012 17:01
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Rev. Dr. Moses P. Lester posted:I didn't do the welding. I don't know poo poo about welding. I didn't design it, I don't know poo poo about designing sidecars. So far I swapped cylinders and laced the rear wheel. The other guys in the project have built multiple street sidecars before and decided on the shape based on reading articles and talking to other people who race vintage sidecars. As should be obvious in those photos, the frame is like 30-40% done. A significant number of bracing tubes are yet to be added, especially around the steering head. You guys are the least fun part of the internet. I'll be sure not to show you any of our t-shirts lest you be concerned over the strength of the weaving processes used! I'd tend to agree usually. However when a dude who lurks CA shows up and says the welds look sketchy and his avatar is a dude welding underwater, I might step back and consider his point.
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Dec 19, 2012 17:18
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ReelBigLizard posted:Seriously? Racing history is full of cludges and "improper" engineering. The legendary John Britten seriously hurt his test rider on the first V1000 when the first version of his carbon fiber front end just loving sheared under hard braking. Colin Chapman famously installed a sheet of card spray painted silver instead of a firewall on an F1 race car. Don't even get me started on guys like Burt Munroe. John Britten was forging new ground. Carbon fiber was a relatively new technology. A carbon fiber front end had never been done. There was no precedent set to know whether or not what they had done was "good". Colin Chapman got lucky. Burt Munroe is hardcore. Welding a frame is not breaking some new ground. An old aircooled boxer is not some exotic piece of machinery that requires some outlandish never before tried fabrication solutions. I'm also impressed no one noticed the fork tubes bent backwards to be some sort of structural piece. This argument is dumb. If you're taking something very obviously sketchy racing, especially with someone else onboard, then good luck, but dont say no one warned you.
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Dec 19, 2012 17:25
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Jim Silly-Balls posted:Would you rather we be like every other bike forum on the internet and say HELL YA BRAH LETS SEE SOME WHEELIE PICS I want to see some wheelie pics :/
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Dec 19, 2012 17:28
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Actually, yeah, does anyone have any pics of hacks pulling wheelies?
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Dec 19, 2012 18:41
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ADINSX posted:I want to see some wheelie pics :/ 
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Dec 19, 2012 18:42
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Dec 19, 2012 19:04
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Dec 19, 2012 19:06
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Dec 19, 2012 19:18
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WHEELIES   Don't cross the wheels 
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Dec 19, 2012 19:22
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Dec 19, 2012 19:31
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Speechless. This should be the CA wallpaper
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Dec 19, 2012 19:46
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And to think, this morning I was struggling with what I should do for the office secret santa...
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Dec 19, 2012 19:57
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Want this full size in velvet so bad.
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Dec 19, 2012 20:06
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 Wheelie with Virginia scenery.
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Dec 20, 2012 00:31
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Yeah wheelies are cool, stoppies are cooler. 
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Dec 20, 2012 00:57
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You can actually see the poo poo stain rapidly forming in his pants. Brad Pitt on some very uncomfortable looking cruiser.  I wonder what happens when a pebble shoots off that open primary.
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Dec 20, 2012 01:06
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I am guessing it either bounces off onto the road or worst case scenario, dings his shin. Actually I'm just joking, it will eat his pants and he will die in a fire. 
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Dec 20, 2012 01:10
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What's the point of a 3/4 helmet with a full visor like that? Besides letting people know you're Brad Pitt. I'll bet you can barely hang onto that thing when it takes off...looks like fuuuuun
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Dec 20, 2012 01:27
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They're very common? It feels significantly more open than a full face while doing a great job deflecting bugs and keeping eyes from watering. Add a mask, scarf or dickie and they're fine for winter too. Most of the people I know IRL use a 3/4 with full visor like that. They all say they don't use a full face because it's too cramped/uncomfortable/suffocating/etc. The chin bar on a full face gets annoying by blocking the vertical peripheral vision enough to not notice the idiot lights on tank based instruments as well.
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Dec 20, 2012 01:46
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3/4 helmets are nice if you want hardware in your face and soft food for the rest of your life: http://www.flickr.com/photos/roentgenator/2450912496/
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Dec 20, 2012 01:58
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Where I live helmets aren't common. Sounds like comfort is the only reason, and that just seems silly to me if you're already going to the trouble of having that much helmet on. The full face doesn't seem like that much more. Hell just get one of the flip-ups. Vision issues are bullshit, I expect to hear that from the no helmet crowd.
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Dec 20, 2012 02:00
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  I still find stoppies terrifying and bottle out before i get up that high. I can roll them if I do them at higher speeds but the prospect of the repair bills for a fuckup put me off.
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Dec 20, 2012 02:01
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nsaP posted:What's the point of a 3/4 helmet with a full visor like that? Besides letting people know you're Brad Pitt. That's his security team in the Suburban next to him lol.
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Dec 20, 2012 02:07
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I was giving the dude the benefit of the doubt that he was just talking to a buddy on speaker phone
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Dec 20, 2012 02:08
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http://news.motorbiker.org/blogs.nsf/dx/brad-pitts-new-shiny-orange-motorcycle.htm Lol in his case it's for style for sure. Scooter? No gear. Street bike? Full face. Cruiser? 3/4. Fashion gear. Edit: Bahah he even has a Ewan get up. 
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Dec 20, 2012 02:11
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