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Are Loud Pipes an Effective Survival Strategy?

copyright Ken Condon 2018

Like politics and religion, it’s usually a very bad idea to bring up the Loud Pipes debate in mixed company. But, this website is here to discuss such topics, because your well being is at stake.

Before you assume this is an anti- or pro-loud pipes opinion piece, rest assured that I am sympathetic to both sides of the argument and you will discover here which tells more about the best pipes durability and performances. I’ve had bikes with loud exhaust and stock exhaust.

My intent for writing this article is to shed light on the effectiveness of certain strategies for surviving the streets on a motorcycle, including loud pipes.

See the complete list of Riding in the Zone articles here.

Sirens, and Horns

First, let’s discuss whether noise is effective at getting drivers’ attention. Before that can be answered fully, we must first define “attention”. A loud noise intended as an alert, such as a siren (EMS or law enforcement), a fire alarm, or a horn is perceived as something that requires attention and triggers immediate response. Additionally, if you’re a property owner and your fire alarm system or water-based fire protection system is not functional, then you are required to implement a fire watch. You may seek expert help from a professional Fire Watch Company in Miami Lakes.

The appropriate response depends on the noise. A siren heard while driving means you need to pull over. A blaring horn means you may be about to collide with another car (or the other driver is just being a dick). Either way, you snap out of any stupor you may be in and frantically look for the problem.

A siren blasting from a municipal building means a risk to the public, like an approaching weather or seismic event. Even this depends on where you live. In Kansas it’s likely to be a tornado. In California, think earthquake. It also depends on where you are. In a movie theater this may mean fire. You get it.

An Example

Did you know that drivers colliding with stationary construction crews is a big problem? Hard to believe, but I guess it’s a thing.

Several methods have been tried to mitigate this all-too-common problem with the latest being sound. An article from the Iowa DOT talks about their trial using audible attenuators to alert drivers of construction crews in the roadway. Read the article here.

Below is an accompanying video demonstrating the attenuator. Take a look. I’ll wait.

Loud Exhaust

Many of you will take this attenuator solution as justification to run loud pipes.

But, hold on. There are differences between this system and loud motorcycle exhausts.

Noise Direction
Considering that exhaust noise is directed rearward, is a loud exhaust more effective in this situation than being seen?

 

One big difference between the attenuator and loud bike exhaust noise is that the attenuator is directed toward the driver and is accompanied by bright flashing lights. The sound from a motorcycle exhaust is mostly directed rearward.

Sirens and horns are pointed forward for a reason. And when you consider that most multi-vehicle motorcycle crashes come from in front, not behind, you can see the argument against loud pipes being responsible for saving lives.

Also, sound bounces off buildings, etc and is absorbed by vegetation, etc. This means that locating the source of the sound is tough. And the time it takes for a driver to identify your location could be way too late.
Can You Hear Me Now?
Modern cars are well-insulated from sound.

Another argument against loud pipes is that even the loudest exhaust may not be heard and then responded to in time. This is because cars are sound-insulated to the degree that moderately loud music or an AC fan on high can mask, mute or muffle the sound until it is just part of the background noise.

An open window certainly helps in this regard, but almost every vehicle on the road today has efficient air conditioning, which means fewer and fewer people drive with windows open.

Loud pipes are seen (and heard) on sport bikes, as well as cruisers.

OK. Let’s assume that your loud pipes alert a driver that you and your bike is in the vicinity. But, to avoid a collision requires the driver to know exactly where you are. Knowing you’re in the vicinity isn’t enough.

An example is a driver traveling in the same direction (you’re not riding in a drivers blind spot, right?) not being able to see you and then cutting you off. Unfortunately, your loud exhaust noise won’t tell him or her whether they can change lanes or not. They may look first, but maybe not.

One scenario that was pointed out to me that may justify loud(er) pipes is when in very slow traffic (think L.A.) and you are lane splitting. At these slow speeds it’s possible that a driver could hear a bike approaching from behind and will think twice about changing lanes. But, thankfully most riders don’t have to endure (or at least avoid) that extreme traffic situation, which brings us back to questioning th validity of the loud pipes strategy.

Mixed Meaning

Let’s assume that loud exhaust systems can get attention. But what exactly is the noise conveying? It’s not telling drivers’ to pull over or run for cover, so what do we expect drivers to do exactly?

A Reliable Solution: Be More Visible

If your real goal for having loud pipes is to get drivers’ attention so they don’t cut you off or crash into you, then the arguments made in this article suggest you’d be wise to consider other (or additional) strategies. Here are some suggestions that are likely to be effective.

Bright Clothing

Now, I know that hi-viz jackets, vests and helmets may not be your thing. But, you don’t have to go all HAZMAT to become more visible. Harley-Davidson predictably sells mostly black jackets to satisfy their traditional customer base, however look beyond the badass blackness and you can find a few more visible options.

Those of you not as encumbered by traditional style requirements have many options available to you, including the aforementioned hi-viz, but also white or bright colored gear that looks both sporty and stylish…and helps you be seen better in traffic. Check out this Scorpion jacket at Twisted Throttle.

Lane Positioning
Lane position strategies are effective for helping drivers see you.

One of the MOST effective tools for being seen and avoiding crashes is effective lane positioning.

Select lane positions that put you in open view so drivers can see you. This means not tailgating the car, which may be using a new car shade, or truck in front and riding in the left or right portion of your lane to make sure drivers waiting to turn into or across your lane can clearly see you. It’s up to you to select lane positions that put you in plain view.

Even if you are in plain sight, don’t assume drivers see you. There’s this thing called “motion-induced blindness” where stationary objects disappear when surrounded by a moving background, such as busy traffic. Get drivers’ attention my moving within your lane. You can simply change lane positions, or do a slight weave as you approach.

Horn

Perhaps a train horn will do the job. Notice the motor mounted behind the backrest that powers the horn.

You can rightly argue that a horn is in the same category as loud pipes. But, there is a difference. Unlike loud exhaust, a piercing horn has a more commanding meaning than the noise from loud pipes (yes, even from a “barking” throttle blip). Remember earlier when I talked about how the types of sounds communicate different meaning? Yeah, That.

The horn on most motorcycles is anemic at best and unless you fit an aftermarket blaster on your bike, you can only rely on this being effective at low speeds. Check out aftermarket horns at Twisted Throttle.

Your Choice

Before you get all cranky thinking I’m not on your side. I believe that any added tool for being seen is worthwhile.

However, (you knew this was coming, right?) loud pipes can’t be relied on for adding the kind of conspicuity necessary to avoid collisions…visibility. People have to see you!

I’m no scientist, and this is not based on empirical evidence, but experience and logic suggest that relying primarily on loud pipes for visibility is a weak strategy. Does it help? To a degree. But, in my opinion, the effectiveness is trumped by the risk of discrimination from authorities, the disdain from your neighbors and the perpetuation of the outlaw image puts us in risk of heavy handed regulation.

Of course I know that this won’t convince anyone already enamored with the badass sound of their bike to dig up the stock exhaust from the basement. However, I hope this article gives you pause before you repeat the old saw “Loud Pipes Save Lives” without at least considering that this strategy may have a relatively minor effect on preventing crashes.

Admit it…loud pipes make your bike sound better and is a way to experience the raw, visceral power of your awesome machine. But, ask yourself if perhaps they aren’t as effective as most people think at saving lives.

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Video: Cornering Seminar with Ken Condon

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At the request of the district manager for the Northeast Region, I booked several dates during mid-to-late winter of 2018. One event was held at Wilkins Harley-Davidson, located in South Barre, Vermont. As with each of the talk, around 100 people attended to learn about cornering…or learn more about cornering. Wilkins recorded the seminar in its entirety.

My aim with these talks is to spread the good word about the benefits of life-long learning…safety and MORE FUN and satisfaction. A secondary goal is to encourage participants to join me for one or more of the training opportunities I offer or am involved with.

And finally, I bring a stack of books for people to buy.

OK. On with the show. It’s over an hour long, so find a comfy chair.

 

 

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Video Lesson: Learn by Following an Average Rider

Here’s a video of me commenting while following an average rider through a twisty road. I point out the rider’s body position, cornering lines and throttle timing, and comment on how he could do better. Notice his mid-corner adjustments. This is an indication of several cornering problems that are correctable. This is the sort of cornering detail we work on during on-street training where student hear my comments in real-time using Bluetooth communicators. If you’re in the Northeast, consider signing up for a private training day or a group training tour. I bet I can help you with your cornering.

-Ken-

I have a lot of other videos on my YouTube channel.

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Video Lesson: Uphill Hairpin Fail

Here is another installment of “Videos Lessons” where we pull from the seemingly never ending supply of rider videos from which we can learn. Even though these are 2 very slow speed crashes, the injuries could have been serious. I hope everyone is okay.

This particular video shows the seriousness of slow speed mishaps and of course the importance of rider training.

First, take a look at the video. The crash happens around 1:15. I’ll wait.

Pretty scary, right? It’s hard to see, but it seems the first rider to crash was actually in the lead, and the rider with the passenger had to slow and go around his friend as he tipped over. The second rider (with passenger) watched his friend fall and appeared to be putting his right foot down to stop, but failed to use his front brake and rolled off the road.

I want to point out that at about :45 the Harley riders demonstrate some apprehension about their ability to handle the tight turns. You can see this as they approach the right hand turn marked by a 20mph road sign. They are smart to slow down because there is a yield sign before a narrow bridge, but they seem to slow more than necessary. This is often indicative of serious cornering anxiety. The confirmation of weak cornering confidence comes when the mishap occurs.

It’s interesting to note that this mishap is different than others where the rider enters a turn too fast (for his/her ability) and runs wide (see this video). In this case, both riders fell on the inside of the right-hander. Why?

Crasher #1

Let’s begin by discussing the rider who first crashed. He says that he hit a hole in the road and then rode over the patch of sand. I don’t doubt this. I also don’t doubt that the hole and the sand contributed to upsetting the bike’s stability (at least a little bit).

Even so, the real questions needed to be asked are:

1. why did he hit the hole when there was opportunity to ride over smoother pavement?

2. why did he fall over?

Here is my explanation:

1.Why did he hit the hole? The reason the rider who first crashed hit the pothole was because of poor visual skills. It’s human nature to look down when we are anxious. It is likely that the rider wasn’t looking far enough ahead to come up with a plan to manage the tricky hairpin, resulting in him being taken by surprise by the tight radius and and steep slope. As he rounds the bend, he sees the hole and the sand which further increases his anxiety and triggers his survival response that includes staring at the hole. When we panic, we tend to target fixate on hazards. The problem with staring at a hazard is that we tend to steer toward it like a super-powerful magnet.  This tendency of going where we look is called Visual Direction Control and is likely what causes him to run over the hole…and then the sand.

Solution: Looking well ahead allows you to avoid surprises. Also, looking at an escape route rather than the hazard could have kept the bike away front the surface hazards. Seeing hazards early is critical for keeping these dangerous survival triggers from taking over.

2.Why did he fall over? Hitting the hole and sand did not make the crash inevitable. Factors that caused the actual fall probably included an overreaction and extreme tension. This would result in the rider clamping on the handlebars and chopping the throttle at a time when he was already moving very slow on a steep uphill hairpin. This reaction hindered direction control and killed what little amount of stability the bike had, causing gravity to take over and the bike to fall over.

Solution: Motorcycles are more stable with speed. Had he kept steady drive the bike’s suspension would have handled the bump better and stability would have been maintained. As far as the sand goes, easy acceleration and a light grip on the handlebars while reducing lean angle slightly would have allowed the tires to deal with the sand while allowing the bike to remain in its lane. As I mentioned earlier, had the rider kept his eyes up, he would have likely selected a path that avoided both the hole and the sand. Problem solved.

Crasher #2

The lead rider’s crash was caused by the same two reasons I already outlined: Looking in the wrong place and insufficient speed for stability.

1.Why did he ride off the road? Because we tend go where we look. The lead rider looked over his right shoulder, causing the bike to drift to the right and drop off the shoulder and down the ravine.

Solution: Same as above. Look where you want to go. Yes, seeing your buddy fall over can grab all of your attention, but it’s imperative that you always remain in control and that means keeping your eyes ahead until you can come to a safe stop.

2. Why did the bike go off the road so quickly? Because of a loss of directional stability. When the rider decelerated on the steep slope he slowed down enough for gravity to take hold of the bike and send it down the hill.

Solution: Same as above. Had the rider maintained positive drive he would have completed the corner on two wheels.

This video demonstrates the importance of two of the most critical skills motorcyclists need to maintain control: Visual direction control and Speed for stability. Think of these two hapless riders the next time someone suggests taking a parking lot course that covers basic slow speed maneuvers and cornering techniques. The techniques would have saved these two a world of hurt and embarrassment.

Even better is if they had signed up for on-street training where instructors can observe problems at real world speeds and conditions.

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Ground Clearance & Grip

Cornering on a big cruiser requires a respect for clearance limits.
Cornering on a big cruiser requires a respect for clearance limits.

I just received another letter from a Motorcycle Consumer News reader, this time about a situation he encountered when riding on a twisty back road in Cali on his Street Glide. Here’s his story, followed by my response.

“Ken, your recent article (in Motorcycle Consumer News) on cornering traction was excellent.  I just returned to Las Vegas after traveling up the coastal hwy to Oregon then back down to Las Vegas. While on that trip I had an incident involving cornering that left me very puzzled.

While heading to the coast from the 101 on hwy 128 north of San Francisco I was enjoying the curves of the coastal range. I ride a Harley Street Glide and ride fairly aggressively but not what I consider unsafe. As I was entering one turn (posted at 20mph) I leaned the bike into the turn and suddenly heard metal screeching on asphalt and almost simultaneously was aware that I had lost traction and was heading for the outside of the corner and a steep drop off.

Automatically I jammed my left foot down to the asphalt, but with my speed around 30-40mph sprained my ankle pretty badly. Much to my surprise I regained traction on the outside of the corner and was able to hold it there through the last 1/2 of the corner. My conundrum is that I’m not sure what happened! I felt comfortable with the speed I had entered the corner and I had entered from wide to just inside the center lane when the incident occurred. Normally, if I’m leaning the bike too much I’ll be aware of the foot board dragging. In this case there was no warning, just metal screeching and loss of traction simultaneously. Also, the road was great, with fairly new asphalt and no noticeable asphalt compaction or debris. Your thoughts would be greatly appreciated as this incident has made me extremely apprehensive whenever entering a corner with thoughts of this incident constantly in the back of my mind.”

Fairly aggressive cornering on a cruiser can be done, if you respect the bike's limits.
Fairly aggressive cornering on a cruiser can be done, if you respect the bike’s limits.

My Response

Without having seen or experienced the actual incident, I can only speculate on the cause based on knowledge of typical scenarios like yours. The fact is that ground clearance just doesn’t go from sufficient to nonexistent without a reason. It could be that you were leaning far enough that you were about to touch your floorboard when the mysterious factor occurred and your bike was suddenly grinding hard parts. This levered your tires off the ground and reduced traction.

Most times, when a bike suddenly goes from adequate ground clearance to zero ground clearance, it is a sign of traction loss caused by undetected surface contamination or debris, or abrupt throttle, brake or handlebar inputs, all of which are rider error. Sudden traction loss while the bike is leaned will cause the bike to drop quickly. This usually results in the rider tensing on the handlebars and chopping off the throttle, which exacerbates the problem.

If neither surface debris nor rider error existed, then you have to look at the possibility of a sudden and undetected change in surface camber that reduces ground clearance, or perhaps a depression in the road that would cause the suspension to compress.

Predicting that conditions can change quickly is a key survival strategy and applies to seemingly perfect pavement. New pavement can actually make ground clearance-robbing features such as undulations and dips difficult to see.

Knowing that your bike is a low slung machine means that you must be particularly sensitive and aware of these clearance hazards so that they don’t cause problems. One way to help manage limited ground clearance is to slow down.

Hanging off the inside of the bike helps increase clearance.
Hanging off the inside of the bike helps increase clearance.

You can also learn to use body positioning to help increase ground clearance. By simply dropping your head and shoulder to the inside, you shift the combined center of gravity of bike and rider so that your machine doesn’t have to lean quite as much. Practice this in a parking lot and notice that your floorboards don’t drag as readily. My book has drills that can help.

If you are riding briskly on your Street Glide and continue to have clearance problems, perhaps you are exceeding the limits of the bike and need to consider trading in for a model that is more suited to your cornering exuberance.

Now that we’ve discussed the possible cause, let’s look at your reaction. The sudden loss of ground clearance, for whatever reason, triggered a panic response that not only had no significant effect on allowing your big Harley to recover traction, but also caused you to injure your ankle. This panic response is part human nature and is how most riders react when faced with a potentially life threatening situation.

Off-road riding helps train for minor traction loss events.
Off-road riding helps train for minor traction loss events.

To minimize these survival instincts from causing more harm, you would need to re-train your mind and body to feel okay with minor traction loss. This is not easy to do when you ride a road-going cruiser, but is easily achieved with some off-road riding experience. Off-road riders routinely experience wide variations in traction and become accustomed to traction loss so that they do not overreact and make matters worse.

But, please understand that training yourself to react correctly is not a substitute for being aware of hazards and preventing them from causing an incident from happening in the first place.

The results of overriding a bike's capabilities can be disastrous.
The results of overriding a bike’s capabilities can be disastrous.

I hope this helps.
Ken

Do you have anything to add? Have you encountered a similar situation? How did it turn out? Please comment below.

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Harley Goes Electric! Will it Fly?

Project LiveWire
Project LiveWire

Bob Dylan went electric at the Newport Folk Festival back in 1964 and his diehard fans nearly fell out of their Birkenstocks. Well, history is repeating itself with the release of the Harley-Davidson LiveWire electric motorcycle. We haven’t heard too much from the Harley Faithful about this apparent departure from what has made the Motor Company famous, but from past experience with the V-Rod and Buell machines, I can only guess that some American made folks will not be happy.

Bob held his ground even as his most devoted fans booed when he sang “Like a Rolling Stone” with a Fender Stratocaster in place of his usual acoustic guitar. It is said that Dylan “electrified one half of his audience, and electrocuted the other.”

Is this what Harley can expect? Boos from the Faithful? I hope not, because I believe that electric motorcycles just may be a big part of motorcycling’s future.

I recently rode a Zero electric motorcycle and was really impressed with almost everything about it. The power was smooth and instantaneous, the sound was soothing in contrast to the invigorating thrust from the radial flux permanent magnet, brushless motor. Sure, the range needs to be improved, but that’s coming.

Update: I also spent time riding an Energica e-sportbike on the racetrack and on the street. The full review is here.

Not Your Biker’s Harley

The LiveWire bike differentiates itself by more than just its motor. It also looks different than the traditional V-Twin cruiser that we’ve all come to know. It’s styling is more power cruiser, like a V-Rod or Ducati Diavel. From a marketing perspective this is smart, because there is no sense in trying to convert the already captured audience that Harley-Davidson counts on to pay its bills. Instead, aim for a wider audience who has an open mind to new technology, engineering and modern styling.

The risk is whether H-D will alienate the traditional rough and tumble segment of the riding community enough so that they harm their established image. Let’s hope we can all just get along and Harley can succeed at catering to both segments: young and old, modern and traditional.

Rolling Thunder

Harley’s are not known for their performance. Sure, they do fine for what they are designed to do, which is to cruise the boulevard or tour the countryside at a leisurely pace. The H-D technology doesn’t exude performance that more modern designs from Victory or the Japanese companies can deliver. But, that’s not the point. What Harley does deliver is a visceral experience of a rumbling V-Twin that means business, even if the performance numbers don’t exactly impress.

Part of the visceral experience of the Harley (and almost any other motorcycle that burns dino-juice) is the sound it makes. I like relatively quiet bikes, but I also enjoy the auditory satisfaction of an accelerating machine with a throaty exhaust note. The number one difference that people need to get used to when introduced to an electric motorcycle is the lack of exhaust noise. Now, for many of us socially responsible motorcycle riders, we see this as a good thing.

But, What about Loud Pipes and Safety?

For those who believe that loud pipes save lives, you will likely exclaim that e-bikes are more dangerous. But, I’ve never been a believer that loud pipes save lives. Sure, noise can add additional conspicuity. But, it’s more important to be seen.

Anecdotal evidence alert: My own experiences suggest that being loud is not a reliable safety measure. For one thing the physics of the way sound travels and my attempts to hear loud bikes as they approach from the opposite direction both convince me that a loud exhaust does nothing to make you safer. I have witnessed loud bikes coming my way and I could not hear them as they approached. That’s why I believe that noise is not a reliable strategy. Your perceptions may vary.

The proven way to avoid being involved in a crash is to be seen.  If a driver can see you, he or she can avoid you. Yes, loud pipes will let them know you are in the vicinity, but they won’t know where you are.

Electric motorcycles will polarize a lot of riders because of the lack of noise and the challenge to the status quo. But before you judge…ride. I found that the combination of seamless power and silent operation are just as satisfying as the rumble and roar of an internal combustion gas burner. Maybe you will feel the same way.

LISTEN to Ken being interviewed in this National Public Radio (NPR) report on the Harley LiveWire project

Thanks to the LA Times for this video:

Would you buy an electric bike?

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Harley-Davidson’s Dark Days

Harley-Davidson sold these Aermacchi models in the 1970s
Harley-Davidson sold these Aermacchi models in the 1970s

Harley history is rich in tradition, but there were times when the brand suffered from some serious PR problems. The AMF years embody many of those problems. This bike was seen at my town’s annual tag sale. It’s a H-D Aermacchi SX350, I believe. Not sure of the year. Maybe one of you can tell us?

I don’t know much about value of vintage motorcycles like this, but it seems like this model would be a logical addition to a collector’s garage, as a representation of the dark days of Harley history.