Tucson01

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For those of you that can think outside the box!

http://www.neweramodels.com/cgi-bin/...p&part_id=1826

Sweet nitro [X(]drag bike!!

Tucson01

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On RCZ a poster talked to the New Era reps ...
"they are working on a street version of the bike to go along with the drag version"
More Pics.........

NitroWolf

At $500 w/o motor or electrics, it is still a sweet bike...for looking at only. Can you imagine the damage if you had a spill? Drag bikes need to be a little tougher. Don't get me wrong, I would buy one in a heartbeat, but not to put on the strips.

Tucson01

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Hate to say it but i have seen guys do $400+ damage to a R/C car. Have you ever watched a R/C plane take a dirt nap... if its a nice one your lucky to get away with
$400 in damage. I saw a SuperNitro Rs4 clocked at 100mph go for a bit of road rash..
it didn't look like a cheap fix.

Heh.. my wifes car was parked and a crazed lady backed into it BAM! $1200 damage.

My cousin jumped over his dog and broke his leg BAM!!! $30k in medical bills, spiral
fracture of the lower leg. Now he has a $30k 12 " titanium rod in his leg.


The bike looks well built.... Take a look at that rear tire.... its Built for speed!!!

The Pumilio Tiempo is $695 EUROs + shipping + (taxes & customs duties) find a Euro to Dollar converter. It has no motor or electronics.

Heres a Link: http://www.pumilio.fi/eb_main.html

NitroWolf

tuscon, the rear of the bike looks well built. I was more or less speaking of a front-end impact. I'm sure the bike would fly. I'm not knocking the bike for it's price or speed. Just the cost every time someone impacted the front.

evanspa

I am still working on mine! Brazed brake tubing(Kragen) and a four stroke. I need info on front end trail and handling....Anyone help?

LtlHdThnkr

Evanspa,

That looks sweet!!! Looks like your going to make it belt driven, cool! Hope you get enough thump outa' that pea shooter to make it sound semi-authentic...lol. At least throw a hot lookin' chick on the back with a "back seat *****" T-shirt!!!

LHT

NitroWolf

Hey, that's nice. Kind of the same approach I have exept I had planned on using music wire (to stiff to work with). I think an 1/8 inch mild steel rod will be fine though. Two stroke for me! What did you use for the tank and rear fender?

evanspa

The Tank and Fenders are fiberglass(no glass cloth) I shaped a piece of Styrofoam and coated it with 5 min Epoxy, mix alcohol with it to slow down the cure and thin it out a bit, apply with paint brush. Then, I go over that with 2 part fiberglass from Home Depot. After you get the shape and sand it smooth, pour lacquer thinner on the foam plug and it will dissolve away!
Don't put the fiberglass directly on the Styrofoam, it will eat it, use 1 coat of 5 min epoxy first.
If you sand and prep well you can get a mirror finish using regular model spray paint
I am looking for info on geometry for the fron end...trail, offset.....

NitroWolf

What size brake tubing did you use? The tubing is probably easier to work with, right?

Tucson01

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I found a site on the geomerty for the front forks.. Let me look around I'm sure i can find it again.

Thanks for the info on the Glassing technique.... It will come in handy for building other items as well.

Your setup is still very nice. From the looks though you wont be able to change the angle
on the head bracket that you have already brazed in.

From the pictures the turning radius wouldnt be too large due to the angle you have.
Think of it this way... Like the chopper the longer the forks or wider the angle the greater the turning radius. The wheel leans more than turning

Of course a smaller angle and a quick servo would flip the bike
end over end at high speed.. which is evident if you look at the wheelie vid. The driver over corrects the steering lets off the throttle and a few good bounces before its
road rash is over.

Tucson01

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Evenspa


Here is a good article on Steering Head geometry.
Link is below:

http://www.j-pcycles.com/shop/express4/techtalk.asp

evanspa

I went with about 30 degrees on the head, but increased that a little with the triple clamps. This gave me about 1/2" of trail. As far as tight turn radius' I don't plan on racing with this bike(prototype) but if it does not turn well at all I will attach wheelie bars and a big ass motor for drag racing!! (or build an airplane lol)

Jordan Krupp

OK , well , whats the scoop on how this thing works ? > BALANCE ? or no balance ? Good thing I like road racers or would make a 1/3rd scale PRO-STOCK with a SIX HORSE ENGINE ! Hey ! Thats a good idea ?!! I can see it now ! CMB POWER !

cutwag

Evanspa, I saw one time at R/C WRAM show in N.Y. Aguy that makes 1/4 scale Harley Engines. did you ever hear of them? The guy started it up too. It was exactly like a full size Harley. Sounded soooo good! And was like an exact replica. My Best, Dean Costa

nitrofreak74

for some reason that smells like a pile of bull crap,

papo

it is true
I saw one time at R/C WRAM show in N.Y. Aguy that makes 1/4 scale Harley Engines. did you ever hear of them
it works

Tucson01

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That is what I like to see....


Very nice photos thanks for the post


I saw a quarterscale Cosworth V8 with a supercharger somewhere on the internet. The guy wanted $3000 for it.

Working on the Suzuki HOR ....Vintage Kyosho Rowdy Baja.....Ripmax Alienator.... ATM

I should have some new pictures of the HOR up this weekend....

shredderx

I have designed and am currently building 1/10th scale Drag Bikes .....

I had built 2 to run in the IMDRA ( www.imdra.com ) at the National Race in May and 1 of them WON the Event in the Bracket class.... and ever since I have been building them for people that want Bikes !!!

see pics'

Robb
[email protected]

Spade115

Joined the Forum just to get information about the Drag Choppers. New to Rc Racing, looking at getting a Losi 22S Drag Car, rebuilt my HPI Rs4 Evo 3 Plus Nitro and bought a Rs4 Micro.