Chap 84: Streamlining a Zero SR
Using Zero's published SAE J2982 Standards for measuring range
Standard Zero in the city
Streamlined Zero in the city
|Advertised range 151 miles |
With PowerTank: 185 miles
|Probably the same|
Standard Zero on the highway
Streamlined Zero on the highway
|SAE J2982 standards permit crouching |
Advertised range at 70mph: 77 miles
With PowerTank: 94 miles
|Sitting upright |
Expected range at 70mph: 114 miles in side-by-side riding
With PowerTank: 142 miles
Ability to carry two helmets and extra gear out of the elements
Rider is inside slippery bodywork, out of the wind and rain
|Lets begin with three basic reasons to streamline:|
Updated April 10, 2015
Reason #1: Go farther
Reason #2: Go better
Reason #3: Go faster
|Standard handlebars, seat footpegs, lighting, etc. |
Designed for rider comfort. Sit up riding style. Lots of storage. Room for two helmets and more.
The battery range can be doubled or "somewhat" increased, depending upon what you want.
Clip-on handlebars, Rear sets, Pad for seat, No lights, No license plates, Designed for speed
No consideration for comfort or protection from weather.
|Almost every part has been changed |
Terry increases his range by 100% over a stock Zero at 70-80mph. But the tail is long for the best streamlining.
Vetter Challenge Rules reward people for riding in comfort, carrying a useful load*, and being the first choice vehicle in the garage. After meeting these requirements, the winner is determined by using the least energy as measures in dollars and cents.
Terry's Streamlined Zero has been the mark to beat.
*A useful load is defined as 4 bags of groceries
|Most people want to look like racers they see on the track. They think it is cool until they have to ride this way for any distance.|
There is another reason to Streamlinine:
Reason #4: Streamliners are Babe Magnets
Ask Alan. Ask Terry. Ask Vic. Ask Fred.
Disregarding #4, one design cannot do everything
Refering to Design #1, #2 or #3, what is important to you?
(or send me a picture of something more to your liking)
|Jan 30, 2015: Eric says: Just throwing my opinion out there for a sellable fairing kit that I personally would be interested in. I like the idea of a full super bike race style fairing or a more sport touring version of such. I know this applies for myself and my customer base. If I decided to do a large across Canada tour (which I may) I would definitely look for a larger fairing with lots of storage. But still for a every day fairing would have to be sportier and tight. |
Craig asks: What is a "full super bike race style fairing?" Is it Design 1 or 2 or is it something else? How would you change the ones shown here to be more to your liking?
Justin says: Design 2 would suit my needs the best.
I find riding in a tuck for any length of time tiring, and as my bike is used for regular commuting, keeping it comfortable is important to me. Also as I'm looking at fitting faster chargers, the ability to extend touring range would be useful. I do not want to modify my frame in any way like Terry did on his bike
Range is important. .
Cost: I'd be happy to pay around $3000-$4000
Size, storage is not hugely important to me, enough room to carry an overnight bag.
Passengers: I rarely take pillion passengers, so range would be my answer here.
Riding position: I'd prefer to be able to ride upright.
Extra question: Would the proposed fairing require me to remove the tank plastics on the bike? Thanks for allowing me to have input into the design of this fairing, it is appreciated.
Craig answers: I think I can do this with no mods to the bike. It certainly is my goal.
Jan 29, 2015: Drew says: I know the three options are going to kill people, but I'd love to see a more road racing style fairing.
Craig asks: Does this mean Design #3 or something else? Can you describe the kind of riding you do? Are you willing to change the handlebars, the seat and footpegs?
Ben says: After ruminating about the faring dilemma of size vs utility, I think utility has to win out. I like the look of the #2 faring that you just put up on your webpage. As long as there is room for 2 Elcon 2500W chargers and a duffel bag in the back, I think that will be perfect. I prefer it to be not quite as big as Terry's, but want to be pretty comfortable sitting in an upright position for long periods of time. Also, being able to clip it on and off the bike easily is still very important to me.
Craig comments: My Windjammer Fairings were designed to go on and off in minutes with 4 bolts. However, once on, they stayed on. The streamlined bodywork I design today goes on and off in minutes with only three bolts. In five years, I have taken the nose off my Helix only to change the tire. Same with Alan and his 250 Ninja.
Being electric means there is no maintenance to do. Why is it so important to you to take this fairing off?
Terry Hershner summerizes the comments he has read: People seem to be satisfied with a 30%-50% increase in range, Windjammer quality finish, yet small, very light weight, easy to install, very quick to remove if in a hurry if need to work on bike for quick repair, then very fast to reinstall. Cost $1000-$2000, tail is the passenger backrest, a helmet and a dufflebag's worth of storage.
It would be helpful if you told me why you bought a Zero in the first place and the kind of riding you do with it.
Next: Reducing the length. Truncating the tail. What will happen?
Master Index to the Last Vetter Fairing Story
End Chapter 84
Updated April 10, 2015
Posted Jan 30, 2015