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HotCanadianChick posted:So you're willing to shell out all the extra money to get an expensive high end sumo instead of a cheap DRZ, but now you're balking at spending the scratch to get a properly matching high end slipon? Haha I guess, though seriously with the introduction of the Husky the Venn diagram of 'supermotos' and 'bikes you can Actually For Real take the highway with' went from 1 to 2.
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Oct 16, 2016 18:35
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Well, HCC, we don't all enjoy the "money is no object" lifestyle of being a professional Hater and Shade Thrower that you do. I like Akra's logo, and their exhaust systems look great. I also understand their inflated price tag being such so that they can properly fit into the pricy KTM landscape. I do think that they are laughably overpriced, and don't really want to support that tomfoolery. This opinion is my own, and I choose to act on it personally by simply not buying their products. High Protein posted:Haha I guess, though seriously with the introduction of the Husky the Venn diagram of 'supermotos' and 'bikes you can Actually For Real take the highway with' went from 1 to 2. Isn't it amazing? I was on a day trip yesterday with a pillion, and they suggested we take the highway back since it was getting dark. It was so nice to have that option with no problem (though I may need a small wind screen), and not worry about running out of power two up, or getting knocked around a bunch. Coydog fucked around with this message at 18:43 on Oct 16, 2016 |
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Oct 16, 2016 18:39
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Coydog posted:Well, HCC, we don't all enjoy the "money is no object" lifestyle of being a professional Hater and Shade Thrower that you do. Yeah exactly, especially the headers have insane prices. Still, it's a good racket, as they're the only officially approved parts. Some consolation is the fact that the magic words Full Akra do increase the value of your bike when you try to sell it though. I feel many other KTM parts are reasonably priced though, now when I had my Buell, that was just insane. I've looked at the Wings exhausts and I've heard a lot of positive things about them, but they don't have eu-approval which isn't that important, but slightly more so when riding in Germany. Unsurprisingly, the Germans are sticklers for that kind of thing. Bolting on a pipe approved for the SMC is still technically illegal, though at least the pipe has the proper certification plate riveted on.
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Oct 16, 2016 18:49
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"$1000 for 26 inches of pipe lol, I wonder if they make car exhaust" $3750 for an axle back  Nice scam.
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Oct 16, 2016 21:21
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penus penus penus posted:"$1000 for 26 inches of pipe lol, I wonder if they make car exhaust" That's not a lot for an exhaust in the high end market, and I'm not sure how it's a 'scam'. BlackMK4 fucked around with this message at 23:08 on Oct 16, 2016 |
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Oct 16, 2016 23:04
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Some people ITT don't understand how much it costs to properly test a true performance exhaust to make sure it actually improves performance over the stock exhaust rather than merely being 'louder'.
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Oct 16, 2016 23:24
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I actually do, not to be a dick. I know little to nothing about the intricacies of motorcycle exhaust so I'm not commenting on that. A $3750 axle back for a car, however, is a literal scam. There is no "properly testing" worth $3750 for two mufflers and exhaust pipe. You could argue that price - maybe - for a set of low volume headers that were an engineering marvel. For twin turbos. They price it that high because people will buy it that high, no further reason required.
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Oct 16, 2016 23:48
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$3700 for an axle back is ridiculous unless it's made of titanium but I don't really understand why you would make an axle back out of titanium unless it's for a car that already costs 200k. $1000 is pretty reasonable for a high quality motorcycle exhaust though. Most manufacturers don't cheap out on materials. I paid about 900 for my full Yoshimura exhaust on my FZ. I was really impressed with the fit and finish even at that cost.
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Oct 17, 2016 00:11
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They are made of titanium, and by axle-back I'm guessing he means what Akrapovic calls their slipon line. I'd love to know what he does to be able to ballpark the R&D of a full titanium exhaust for a low volume car since they aren't just simple pipes.  
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Oct 17, 2016 00:37
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guy: "pffft i could make that for less than $3700"
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Oct 17, 2016 00:40
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Sagebrush posted:guy: "pffft i could make that for less than $3700" It does look hilariously similar to this abomination:  that i had on my old VW T3. Cost me about 40 quid at an autojumble, and required highly complex installation (involving a pair of tin snips and a hammer) not to mention only the most careful tuning (chucking some Weber carbs off a bus on there, twiddling things until it stopped catching on fire).
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Oct 17, 2016 01:10
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Buhbuhj posted:I paid about 900 for my full Yoshimura exhaust on my FZ. I was really impressed with the fit and finish even at that cost. Whoa whoa, slow down there bub. 1000 is for the *slip on*. If you want to add a bit of bent pipe to that for the full system, that's gonna be 2 grand. Akra and whoever can charge whatever they want, and I'm not blind to the quality of a well made component. It's certainly not the only product with a hilarious markup because of the enthusiast market, and better than the process of giving money to people who piggy back on the R&D of others.
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Oct 17, 2016 02:22
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Coydog posted:. If you want to add a bit of bent pipe to that for the full system, that's gonna be 2 grand. That piece of bent pipe (header tubes and merge collector) is where the majority of the money spend developing a proper exhaust goes and where the power is made.
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Oct 17, 2016 02:23
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I bet I could replicate it with a bit of copper pipe and some RTV. 
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Oct 17, 2016 02:26
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Funny thing is the akra pipe for the Drz is one of the worst performers. You'd think they would sink the r&d into it considering it was likely to be a high volume seller and would shape people's perception of the brand, but there you go.
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Oct 17, 2016 02:30
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Jim Silly-Balls posted:Funny thing is the akra pipe for the Drz is one of the worst performers. You'd think they would sink the r&d into it considering it was likely to be a high volume seller and would shape people's perception of the brand, but there you go. But the drz itself is a pretty lousy performer, tbh. also you fucks are adorable. 12 thousand for a dirtbike on slicks, but bitch about a thousand dollar pipe.
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Oct 17, 2016 02:49
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Well, if we are going to get on that subject, I don't think the dirtbike on slicks should cost 12 thousand, either. Supermoto markup is also hilarious. $7200 for a new DRZ-SM LOL get out of here, stalker. (Not that my 690 isn't worth every penny and I'm not about to skimp on what I spend on it.)
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Oct 17, 2016 02:58
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cursedshitbox posted:But the drz itself is a pretty lousy performer, tbh. Yeah except the mrd pipe really makes a difference, much more so than the akra. The yosh pipe, the Leo Vince all of them vastly outperform the akra Which means they didn't do their homework
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Oct 17, 2016 03:09
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I'd guess there is a little bit of a difference in dB  I know the MRD and Yosh Ti make ears bleed.
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Oct 17, 2016 03:11
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I wonder what an exhaust would sound like if you made it out of instrument bronze, like a cymbal or a saxophone.
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Oct 17, 2016 03:18
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https://youtube.com/watch?v=J187Pw6UkCM Wonder no more.
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Oct 17, 2016 03:55
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Do you mean, brass? ...Wouldn't it melt? Do they make instruments out of bronze?? Now someone's gotta put a trumpet slip-on video on youtube. Preferably with auxiliary pneumatically-actuated valving so you get trumpet trills at anything above 7K RPM.
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Oct 17, 2016 04:00
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Slide Hammer posted:Do you mean, brass? ...Wouldn't it melt? How hot do you think exhausts get?  No, I meant bronze, since it's used in things like bells for its wonderful ringing resonance. But brass would probably be neat too. There's a lot of metallurgical overlap between alloys classified as "brass" and ones classified as "bronze" these days anyway.
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Oct 17, 2016 04:57
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Coydog posted:What is wrong with people.
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Oct 17, 2016 10:16
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BlackMK4 posted:That piece of bent pipe (header tubes and merge collector) is where the majority of the money spend developing a proper exhaust goes and where the power is made. Honest question -- why is this? Is it just that the headers represent the most 'restriction' on a system that would otherwise just have a slip on?
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Oct 17, 2016 16:12
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Fishvilla posted:Honest question -- why is this? Is it just that the headers represent the most 'restriction' on a system that would otherwise just have a slip on? I don't know all of the science and engineering behind it, just the tip of the iceberg. There are formulas that take into account cam duration, header tube length, collector design, number of valves, etc that allow you to use the vacuum pulses generated by the exhaust gasses for an individual firing event to pull more air through the cylinder if you time them right through your header design. This allows more air/fuel to occupy the combustion chamber... and make more power because of it, though it's possible to 'overscavenge'. The merge collectors are designed to smooth the transition from the individual header tubes into the main pipe and maintain exhaust velocity. Maybe someone else has a really good explanation.
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Oct 17, 2016 16:33
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You also need a certain amount of backpressure in the pipes for scavenging to work well, having too large of a pipe will actually rob low and midrange power without necessarily giving more power at the top end (you need the right cams, tuning, and intake work to take advantage of a very large increase in exhaust flow at the top end). Basically if you do it wrong, you'll reduce your power output over a large rpm range with no corresponding boost at the top end. But it'll probably be louder than stock.
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Oct 17, 2016 16:48
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Those explanations make perfect sense. Thanks.
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Oct 17, 2016 19:16
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BlackMK4 posted:I don't know all of the science and engineering behind it, just the tip of the iceberg. FWIW in motogp (and presumably other classes) there are header length shenanigans wherein they change the length of the headers to try and move the torque curve around a little bit for different tracks. I imagine chaz davies' bike having a totally different exhaust to the usual panigale setup, and shakey byrne's bike having a 999 type setup, also have something to do with this.
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Oct 17, 2016 19:39
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Also the collector matters a lot - tuning relies on consistency in how the exhaust pulse travels through the exhaust, and if you have rough edges or odd shapes in the collectors, it creates turbulence that has an unpredictable effect on the exhaust pulses (or an inconsistent one, at least), and that means it's more difficult to tune out properly. Also, the length of the collector, the step down size, etc, all affect things as well, as that's where the individual power pulses start to interact with each other. Exhaust tuning is complicated.
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Oct 18, 2016 01:37
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And that's not even talking about 2-strokes.
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Oct 18, 2016 02:18
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Z3n posted:Also the collector matters a lot - tuning relies on consistency in how the exhaust pulse travels through the exhaust, and if you have rough edges or odd shapes in the collectors, it creates turbulence that has an unpredictable effect on the exhaust pulses (or an inconsistent one, at least), and that means it's more difficult to tune out properly. Also, the length of the collector, the step down size, etc, all affect things as well, as that's where the individual power pulses start to interact with each other. There's a very simple solution: zoomies on everything.
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Oct 18, 2016 08:12
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Old chain on xr650r was knackered, so I bought premium renthal one and a link remover to get it to size. Any advice? Can I cock up really badly? Never done it before.
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Oct 19, 2016 15:05
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Nah, it's super easy. Not sure if your tool is just a link remover, or if it is a remover and a press. I'd spring for a good chain tool, if not, as it makes the job a breeze and you less likely to mess it up. I hate buying specialized tools, but this one has been worth every penny: https://www.amazon.com/RK-UCT-4060-...ycle+chain+tool Otherwise, just make sure not to press the link too tight when you are connecting it together, and allow it free movement. You don't want a binding link from the get go. If your chain is a clip master link type, go buy a backup master link right now and put it in your bike's tool kit. It's nice to have, and only costs a few bucks.
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Oct 19, 2016 16:03
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I never bother with the link removers, not worth the time. I just use a dremel or similar cut off tool but measure/count links atleast twice before you cut. Though it's hard to make a mistake if you're not changing sprocket sizes and have the old chain avaliable. When you rivet it just measure a normal link with a caliper and get the joining link to be the same width near both pins. (you can use the cutting tool opportunity to make a hipster grinding video shot)
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Oct 19, 2016 18:33
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Thanks, I think I just bought a breaker. It's the crimping stage at the end I'm over thinking.
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Oct 19, 2016 19:45
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We don't all work on bikes within range of a power outlet, so some wireless tech like a chain tool is worth it's weight in gold.
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Oct 19, 2016 19:51
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Yeah but just go for the harbor freight chain tool, it's cheap and it works
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Oct 19, 2016 23:58
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So I've been getting bike fever over the past few weeks to the point where I think I'm probably going to actually go through with it. I really like the look of Triumph Bonnevilles but looking on Craigslist I'm not sure I wanna drop that much on a starter bike. What are some similar bikes I should be looking at?
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Oct 20, 2016 01:47
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Don't buy the bike you have bike fever over for your first bike, sorry. If that was a wise move, there would be one less ducati superbike in the world. If ptwin standards are your thing, check out the GS 500. You'll hate a bonnie for your first bike, because it's so fat and heavy and subpar. Trust me, riding a bike, any bike, will make you feel exactly the way you feel about *insert dreambike* right now.
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Oct 20, 2016 02:12
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