E-Bike Racing: 2011 World Challenge

[Thud]

.......I just hope (at least one of) my bikes are in compliance once the decisions are made. Yawn.
Please, just don't schedual a conflict with the Death race.(assuming they have another one next spring)

 

[Arlo1]

What is the weight limit? My bmx with a x5 and 10 ah 24 s lipo is 78lbs last i checked. But im in for the race if i can!

 

[AussieJester]

What is the weight limit? My bmx with a x5 and 10 ah 24 s lipo is 78lbs last i checked. But im in for the race if i can!

Wasn't 45lbs the cuttoff tossed around? Or was that kilo i forget now...

 

[REdiculous]

Back on the first page I think it was 70.5lbs. later

 

[liveforphysics]

What is the weight limit? My bmx with a x5 and 10 ah 24 s lipo is 78lbs last i checked. But im in for the race if i can!

Wasn't 45lbs the cuttoff tossed around? Or was that kilo i forget now...

45lbs would definately make it a true e-bike race, bikes would be very cheap to build (all like grinhill's RC bike in a 700c frame, or a cute hubmotor in a 700c rim) with maybe $200-300 in total battery cost. But... then it would be a sissy world championship It would be a boring half-pedaling, half-motor race that would be won my the best rider rather than by the best ebike.

70lbs will make a race of monsters. I know Arlo will have no trouble getting his 5305 powered ebike running extremely good scooter tires down to 70lbs, and it's going to be a hell of a force to deal with on the track.

 

[AussieJester]

45lbs would definately make it a true e-bike race

Yes it would and isn't this what it's meant to be :?

70lbs will make a race of monsters. I know Arlo will have no trouble getting his 5305 powered ebike running extremely good scooter tires down to 70lbs, and it's going to be a hell of a force to deal with on the track.

IMHO the idea of having 70lb bikes is ludicrous might as well just have a free for
all and let lecky motorcycles race to. Has to be a distinction between bicycle and motorcycle Luke
All of the bicycles competing should be lightweight and made exclusively from bicycle parts not
a mix of motorcycle/scooter parts and bicycle parts. jm2c, don't care either way i wont be attending



KiM

 

[Evoforce]

70lbs still sounds a little light. Worried about causing flagship events to be too restrictive. We want the participation of many. In keeping everyone in the game, we would do justice to the fun and involvement of many, as well as increase our spectator base. Not to mention, adding inspiration for new blood to try.

 

[liveforphysics]

New idea for rule structure.

No longer use the word bicycle or bike.

Just a sub 70lbs 2wheel ev with pedals "run what you brung."
If you can pedal it, it doesnt have more than 2 wheels, and it doesnt exceed 70lbs in race ready form on the scale, its good to go.

I dont like the idea of banning trikes/quad builds, but if you dont, then anyone who wants to win will make 6ft wide tadpole trikes with 8" kart front tires on kart spindles and the rest of the kart 1" off the ground, and it will be impossible to out-handle, and mess up passing dynamics for all the 2-wheelers.

 

[liveforphysics]

Isnt the whole idea behind calling an event "world championship" inherently imply only those dedicated to wanting to be champion should enter?

I think what we're finding here is that we do need a class structure similar to Thuds suggested rules. The serious about racing/winning class, and the fun-run class(es).

70lbs still sounds a little light. Worried about causing flagship events to be too restrictive. We want the participation of many. In keeping everyone in the game, we would do justice to the fun and involvement of many, as well as increase our spectator base. Not to mention, adding inspiration for new blood to try.

 

[AussieJester]

Isnt the whole idea behind calling an event "world championship" inherently imply only those dedicated to wanting to be champion should enter?

Thats another thing that should be dropped, the term "world Championship" Luke (or put "unofficial" in front of it?).
Seeing there is no established organisation or governing body a racing series etc etc just a thread with a title on a small internet forum. Its as meaningless as a person taking an e-bike to the drags, running a time and then proclaim he is the world champion after it.
Any one could start a thread proclaim World Chamionship E-bike race, hell, ill make one myself, Timma, Matt.P myself and Rodgah will all compete to see who is crowend world champion! Everyone is welcome to attend as it is the world championship of all world championships!! See what i'm getting at Luke? I know you do :wink: Hell! might as well just save everyone a whole lot of time box your bike up and freight it and the trophy to Tiberius

Keep it as ebike world challenge mate :wink: Maybe have it as the Endless Sphere e-bike Championship even...if the powers that be
permit?

KiM

 

[liveforphysics]

Isnt the whole idea behind calling an event "world championship" inherently imply only those dedicated to wanting to be champion should enter?

Thats another thing that should be dropped, the term "world Championship" Luke (or put "unofficial" in front of it?).
Seeing there is no established organisation or governing body a racing series etc etc just a thread with a title on a small internet forum. Its as meaningless as a person taking an e-bike to the drags, running a time and then proclaim he is the world champion after it.
Any one could start a thread proclaim World Chamionship E-bike race, hell, ill make one myself, Timma, Matt.P myself and Rodgah will all compete to see who is crowend world champion! Everyone is welcome to attend as it is the world championship of all worldchampionships!! See what i'm getting at Luke? I know you do :wink:

Keep it as ebike world challenge mate :wink: Maybe have it as the Endless Sphere e-bike Championship even...if the powers that be
permit?

KiM

You've got a good point there Kim, and you're absolutely right.

 

[Tiberius]

Here's a suggestion for a format. I said earlier I didn't want to see 120 formulas and 120 prizes but I did also say right at the beginning that some extra classes/formulas would be good.

We should try to accomodate the fun runners. I'm not so sure, however, that we need to bend over backwards to create classes for those who've said they're not coming whatever.

It is an event for e-bikes not electric motorcycles, so a distinction needs to be drawn. So there is an overall requirement for every class:
Working pedals
Two wheels
Max 88 lbs / 40 kg
(If some one has a better distinction than a weight limit, let's have that instead)

Within that overall framework, there are various races

1. Hill Climb (max weight 70 lbs / 32 kg)
2. All comers race (How far can you go in 30 mins. No further rules)
3. Efficiency race (12.5 miles / 20 km. A limit on battery Wh, probably set to be about 20 Wh/mile)
4. The F1 race (max weight 70 lbs / 32 kg, 12.5 miles / 20 km)

Repeat several times over a weekend and add up the points.

The idea then is that races 2 and 3 are open to general, run what you brung, factory or homebuilt e-bikes. In fact race 2 looks a bit like the Spooky Tooth Death Race.

Race 3 is an opportunity for low powered e-bikes to have a chance.
Because race 2 is an endurance (ie time rather than distance), its not the same as race 4, so bikes that are set up for the F1 race won't necessarily be able to beat the all comers.

Nick

 

[AussieJester]

Sounds good to me Tiberius. I'm still backing Luke to clean up in
all events he enters....

KiM

 

[NorCalTuna]

Just to throw some more numbers into the pool- I weighed my pretty typical current setup tonight. It's a 19" chromo, rigid MTB on 26"s, 6 fatpacks, an 18fet lyen and an x5. It's 76 lbs. The fatpacks are about 12, iirc. I'm pretty sure somebody weighed just the x5...

Whats the lightest setup on the list, for purposes of comparison?

 

[AussieJester]

Just to throw some more numbers into the pool- I weighed my pretty typical current setup tonight. It's a 19" chromo, rigid MTB on 26"s, 6 fatpacks, an 18fet lyen and an x5. It's 76 lbs. The fatpacks are about 12, iirc. I'm pretty sure somebody weighed just the x5...

Whats the lightest setup on the list, for purposes of comparison?

IIRC Timmas MTB build is ~25 kilo hits 75km/hr in quick time
would be a good ride to take to a go kart track IMO.

For those that haven't seen this bike Lipos are inside the frame not carried in a backpack etc.

This sort of style ride is the style of bike that will do well in a race, multiple
gearing and the power to weight ratio is obscene.

KiM

 

[dogman dan]

Renaming the event world challenge instead of world championship makes me a lot happier about the rules being anything you want. If it exlcudes the heavy bikes, fine. 70 pounds just seemed too exlcuding of the hubmotors to me for a "world championship"

 

[liveforphysics]

If we decide to do it in the Seattle area, we can also add a just-for-kicks obsticle course style event.

Like something to keep us all laughing while we're BBQ'ing and chomping down on steaks and relaxing.

I'm thinking an array of traffic cones (I personally have like 10, I bet other folks could bring some as well) out on the basketball court and paved driveway area, and you've gotta run a pattern, something really low-speed and technical, similar to a motorcycle licence safety test with a tight slalom and some short radius turns and things you gotta make. And have a rule like each time a foot touches the ground, it adds 2 seconds onto your time or something. We've got awesome fixed lighting to make it almost like daylight when it's night, so it's something 1 person at a time could run while the rest of us are socializing, sipping drinks, laughing, fixing bikes for the next day's races etc etc.

 

[AussieJester]

an e-bike version of gymkhana

KiM

 

[liveforphysics]

an e-bike version of gymkhana

KiM

Exactly. But cars don't just fall over, with this event, we get to laugh as people fall over at 2mph trying to avoid a foot-touch. What could be more fun to watch while relaxing and enjoying some great food with good like-interested buddies?

 

[AussieJester]

we get to laugh as people fall over at 2mph trying to avoid a foot-touch.

I would win this one eeeeasily Luke hehehe stabilizer wheels FTW

Gymkharna X Motorcycle trials for e-bikes is more apt Might coax GWhy into attending if there is mention of e-bike trials hehe

KiM

 

[gwhy!]

If we decide to do it in the Seattle area, we can also add a just-for-kicks obsticle course style event.

Like something to keep us all laughing while we're BBQ'ing and chomping down on steaks and relaxing.

I'm thinking an array of traffic cones (I personally have like 10, I bet other folks could bring some as well) out on the basketball court and paved driveway area, and you've gotta run a pattern, something really low-speed and technical, similar to a motorcycle licence safety test with a tight slalom and some short radius turns and things you gotta make. And have a rule like each time a foot touches the ground, it adds 2 seconds onto your time or something. We've got awesome fixed lighting to make it almost like daylight when it's night, so it's something 1 person at a time could run while the rest of us are socializing, sipping drinks, laughing, fixing bikes for the next day's races etc etc.

Now this is my kind of event flick turns,back wheel hops, stopping in a box area feet up for 5-10 secs, bunny hopping, getting the bike over obstacles all with feetup.... begining to sound like a trial :wink: could have a simple trial scoring system 1 point for each dab, the person with the least amount of points wins. not about speed just about control no weight limit so every one can have ago

your quite right AJ

 

[AussieJester]

your quite right AJ

OH yes i knew that would get your attention buddy haha...I have just started an Alternative reason for using regen thread i think you might also find of interest?

http://endless-sphere.com/forums/viewtopic.php?f=28&t=19218

This would/could also be of interest to anyone building a race bike i guess, would mean hitting power exactly when you want (ideally the apex of the corner) would be possible something i have found not so easy with a freewheeling setup for reason outlined in the above linked thread.

KiM

 

[Arlo1]

This is mine its 10ah 24 s 20 c lipo with a 18 fet mothods controler and a x5 and other then tossing off batteries I dont know how to get it down to 70 lbs

 

[liveforphysics]

I dont know how to get it down to 70 lbs

Perfect This means the event won't just be the 2011-world-enter-my-normal-bike-and-kick-ass, it will still be the 2011-world-Challenge for you as well. I was a little worried you were going to be able to just enter your bike as it sat and kick some ass. At least this way you get some weight puzzles to creatively solve.

 

[Thud]

Arlo,
I see you haven't even attempted to "LOSE" the weight on your build.

Friendly suggestions include:
#1 cut out every other spoke
#2 what do you need that heavy down tube for...cut it out.
#3 cut off 1/2 of your handle bars/remove the grip from the remaing one
#4 remove the seat
#5 sandblast off all the heavy paint
#6 drill holes in every thing thats left. such as-frame members, axels, nuts, cable housings, rims....be creative.
#7 re-wire with "aluminum" wire.
#8 replace all duct tape on batteries with scotch brand celophane

Just a few helpful suggestions from a fellow competitor

(ps-no one should take this serious!)