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cave weta
29th June 2011, 20:46
I had seen “The World's fastest Indian” movie 3 times.
I had even begged the poster from the cinema manager!
Then, after about 7 years nurturing of a quiet little passion for anything a little left of centre that had been made to travel extremely fast. I saw a partly dismanted Postie Bike on a trade Me advert.

<a href="http://tinypic.com?ref=v8g55i" target="_blank"><img src="http://i55.tinypic.com/v8g55i.jpg" border="0" alt="Image and video hosting by TinyPic"></a>


The tiny bike's shape was fluid and lithe..... the 1960's ohc motor produced 7 horsepower. I was smitten! It went straight onto my watchlist and 4 days later, after a bidding frenzy I earned the right to travel 300km to Dargaville in a small noisy and smelly van .The bike and its small mountain of spares were home that night and spread out across the shed floor.

How to keep this fabulous score a secret from the good lady?....
I had to be ruthless, anything that was not needed on the bike to provide forward motion was removed.
The spare parts that would never be needed on a pure sports version and anything that was duplicated in the parts bin was put straight back on TardMe.
The rest was pushed into a corner of the man cave and hidden with an old couch that I had promised to fix for her but ended up sitting on during my late night 'gazing at my old bikes' sessions.
For the next few nights my time was spent searching internet forums and websites to determine the best way to get a bike with a top speed of 78kph to crack the ton!
Trying to coax sufficient tricks and ponys out of a tiny old fashioned motor was just asking for grief .
<a href="http://tinypic.com?ref=16c9opv" target="_blank"><img src="http://i53.tinypic.com/16c9opv.jpg" border="0" alt="Image and video hosting by TinyPic"></a>
So, seeing as this whole thing was about having a laugh without spending too much moolah,
I decided that something radical might be in order... I investigated fitting a GSX-R 750 motor that was cheap and even wondered about fitting a German stationary Diesel engine that was on 1 dollar reserve!
Then I looked at a form of bike that I appreciate even less than a Heritage Special Road King FLGH

…. Did you know that high quality racing pit bikes are actualy packed with tech features and fancy materials at crazy cheap prices?

I started by spending a lot of time on a USA forum and discovered that their top selling pit bike brand was fitted with engines that I could buy from a pit bike dealer in Auckland. EASY!
More about the motor soon – but now my work was starting- rebuild the wheels with some nice new chrome spokes. Measure up the bikes bolts and screws and trundle off to Fortress fasters and hassle them with my fussy and complicated order of 137 assorted bolts. nuts, scews and washers in stainless steel.
Rebuild and rechrome the tiny front forks and find an alternative to that heavy duty front guard. Gettin me some o them fancy gas reservoir rear shocks from those nice people at NZ Motor Factory too. I set about lengthening the swingarm and adding rearset pegs and controls. Woohoo! I found that although I couldnt use that GSX-R 750 motor, I was able to use the lightweight pillion pegs off the bike.

I had started a ''World's Fastest Postie Bike' FaceBook page weeks earlier to share the madness with friends.

https://www.facebook.com/pages/worlds-fastest-postie-bike/140117289361834

The positive comments had promped me to think sponsorship. After a brainstorming session with the dog we decided that four companies could supply me with the bits and pieces that were needed to get this bike to the track.
I wrote up a proposal and approached Cycle Treads Superstore for tyres and a Tauranga company that I had used for years for some hot new paint. Linkup Paint Supplies BOP loved the idea and have even arranged to have the frame and parts to be professionally prepped and painted so that I dont have to!
House of Custom in Paeroa have sorted my paddock stand and a great little 125cc fairing in fibreglass so that we will have somewhere to write wonderful things about the sponsors.

But right at the top of the heap is New Zealand Motor Factory (http://www.nzmotorfactory.co.nz/main/index.php)in Auckland. they import that great little racing pitbike engine the FORZA 155HO plus a pit bike range and quads as well as scooters. Yhey have massive premises in East Tamaki and carry spares for all models.
The FORZA 155 high output is the backbone of the american pitbike racing scene. It is a sold there as the Daytona 160 but the agreement with the factory dictates a name change for sales in other countries.

<a href="http://tinypic.com?ref=3c3li" target="_blank"><img src="http://i53.tinypic.com/3c3li.jpg" border="0" alt="Image and video hosting by TinyPic"></a>


Now, these motors bolt into standard Honda mounts and share the same 'laydown' format. Everything else though is a world away from the Honda C50 C75 C90 and CT110 that inspired it.

This crate motor kit with exhaust, carb, CDI, coil, irridium sparkplug. Unifilter filter and Motul 15w-40 oil costs less than the wrecker was going to charge me for a fifteen year old GSX-r motor.
I just knew that I had done the right thing .To the uninitiated observer it looks just like the original motor. Okay, okay- apart from the massive flatslide carby and the headerpipe that is the diameter of a cucumber! Oh and the high capacity oil cooler and the liberal finning on all the hottest parts of the beast. That 28mm flatslide carburettor makes the motor so snappy from down low. Its a bit of a shame that the bike wont be used on a circuit against other bikes, Im sure that with lower gearing this bike would be a screamer with its close ratio box and 6 plate high performance clutch.
<a href="http://tinypic.com?ref=9jj813" target="_blank"><img src="http://i54.tinypic.com/9jj813.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

The FORZA Engine uses the Honda pattern primary sprocket which makes ratio selection cheap and easy with ten dollar sprockets available from 13 teeth to 17 teeth. In the rear same applies. The old CT90 had two variants, Postie and Farmer with different ratios. Also those tiny Honda Monkey Bikes and the ST70 and ST90 had tiny 32 tooth and 34 tooth sprockets because of their low overall wheel diameter. Based on my redline on The FORZA155HO of 12,000rpm I will have gearing to rival the takeoff speed of the Airbus A370. This is going to be fun!.

The frame and parts are now painted with 3 coats of Linkup Paint Supplies twopack "Monza red"- so shiny, I can see my nose hairs in the reflection.
<a href="http://tinypic.com?ref=4ta8g9" target="_blank"><img src="http://i52.tinypic.com/4ta8g9.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

Cycletreads Superstore's Bridgstone Battlax sticky tyres are fitted and the wiring is sorted. A 15,000rpm rev counter, rearset pegs. a steering damper and the cutest set of clip on bars make it look like a salt racer. <a href="http://tinypic.com?ref=2euj2bk" target="_blank"><img src="http://i51.tinypic.com/2euj2bk.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

<a href="http://tinypic.com?ref=nprhua" target="_blank"><img src="http://i55.tinypic.com/nprhua.jpg" border="0" alt="Image and video hosting by TinyPic"></a>
It is sitting here next to me now with a tiny foam pad for a seat and its highest point a good handwidth lower than my belt and Im thinking, “With this 50 year old girth under my belt- how am I going to get top velocity from this red rocket?
I need a 48kg female with big balls- thats what I need!” Luckily I know just the Person..... bwahahahahhaa! (evil laugh)

Last years NZ 125cc GP winner Avalon Biddle, young, keen, tiny and brave. Perfect!


Well- the bike is now assembled and ready to roll.....
I'm taking it up to meet its rider in two weeks and it will be on the burnout pad at Cold Kiwi in September. See you all there!

Ocean1
29th June 2011, 20:56
Nice.
Very very nice.


Wonder if you could splice another cylinder over the existing one...

cave weta
29th June 2011, 21:41
Here is a couple more shots..
<a href="http://tinypic.com?ref=2wqx5jk" target="_blank"><img src="http://i51.tinypic.com/2wqx5jk.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

<a href="http://tinypic.com?ref=1z6net" target="_blank"><img src="http://i54.tinypic.com/1z6net.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

merv
29th June 2011, 21:53
Mate that is just fantastic. When is the movie going to hit the theatres?

Big Dave can you do the filming as your last job before you eff off to Oz? :gob:

cave weta
29th June 2011, 22:01
Mate that is just fantastic. When is the movie going to hit the theatres?

Big Dave can you do the filming as your last job before you eff off to Oz? :gob:

What if we made BD ride it for a KiwiRider Test.....

bogan
29th June 2011, 22:10
good shit, looks bloody good, for a postie bike anyway! So you reckon it'll crack the tonne then?

jaffaonajappa
29th June 2011, 22:17
Agree with all the guys above - that looks farken Cool!
Nice work.

Tony.OK
29th June 2011, 22:25
Love it..............great project fella.

Keep us posted eh.

jaffaonajappa
29th June 2011, 22:32
I need a 48kg female with big balls- thats what I need!” Luckily I know just the Person..... bwahahahahhaa! (evil laugh)


Anyone got some scales?
241774

wharfy
30th June 2011, 02:48
Bloody nice - great read too :)

shafty
30th June 2011, 03:31
LOVE it! Go Weta! :woohoo:

Paul in NZ
30th June 2011, 06:03
More awesome than a burning ninja on a skateboard doing a triple backflip while chucking throwing stars at a slime monster eating toyko....

Sweet bike.... Well done....

YellowDog
30th June 2011, 06:18
I always thought that you had some room for expansion on that frame.

Fantastic work. Well done.

You now have to work out a per hour hire rate :yes:

unstuck
30th June 2011, 06:31
Well done that man.:first::niceone:

Edbear
30th June 2011, 07:24
More awesome than a burning ninja on a skateboard doing a triple backflip while chucking throwing stars at a slime monster eating toyko....

Sweet bike.... Well done....

Ahhh, yeah... Wot he sed... I think... :blink:

Brilliant! You may have started a whole new racing class, the Postie Bike GP! :first:

White trash
30th June 2011, 07:57
That is fan-freakin-tastic. Can't wait to see what it can do in the highly skilled hands of Ms Biddle.

Shaun
30th June 2011, 09:19
Brilliant work and story mate, KIWI lives:yes:

Paul in NZ
30th June 2011, 09:34
This makes me want this bike even MORE

http://www.trademe.co.nz/Browse/Listing.aspx?id=387951005

'course I wouldnt cut THAT up but the left over bikes from his resto and....

oldrider
30th June 2011, 09:55
Great project, best of luck! :first: :clap:

Murray
30th June 2011, 10:51
Doe's this mean we will get the mail earlier!!!!

Love it, my wifes a postie and does the bike run occasionally, she can ride it for you if your looking for someone

cave weta
1st July 2011, 18:41
This makes me want this bike even MORE

http://www.trademe.co.nz/Browse/Listing.aspx?id=387951005

'course I wouldnt cut THAT up but the left over bikes from his resto and....

If you want to get into little cuties again contact merv Garrett in tauranga.
he has a mint collection of small hondas upto 350. they are all perfect examples- he knows where all the old ones are. I will give you his email if you wish.

avgas
1st July 2011, 19:49
WANT.

When's it get Turbo and NOS?

nallac
1st July 2011, 19:52
man that looks cool..A job well done.

cave weta
3rd July 2011, 18:16
WANT.

When's it get Turbo and NOS?

No turbo planned yet- But I have a nos kit here that will be fitted once it is run in.
I will start it tomorrow and video first fire up....

cave weta
4th July 2011, 19:16
Well- it didnt get started today. work got in the way...
plus the bloody rev counter instructions are in only Japanese!
and I forgot to buy some fuel line while I was in town:facepalm:

So-
1: who can read me the japanese wiring and setting up of the rev counter?
2: can someone please email me 320mm of 7mm fuel hose ?

what I can do is fit my new tubes from Cycletreads and start wrapping the exhaust with asbestos heat tape.

my_r32
6th July 2011, 14:21
Bloody hell, thats awesome man! I'd love to deliver my round on a bike like that :D (I'm a motorcycle postie in Dunedin) I can get my new work bike up to 93km/hr lol

cave weta
6th July 2011, 17:44
Bloody hell, thats awesome man! I'd love to deliver my round on a bike like that :D (I'm a motorcycle postie in Dunedin) I can get my new work bike up to 93km/hr lol

You must be a lightweight! I can't get a standard one over 83kmh!

I think this is shaping up to be the best fun bike Ive ever owned!
here is the video of the first startup today.

<iframe width="425" height="349" src="http://www.youtube.com/embed/kA9iWnZYhBE" frameborder="0" allowfullscreen></iframe>

Paul in NZ
6th July 2011, 17:48
If you want to get into little cuties again contact merv Garrett in tauranga.
he has a mint collection of small hondas upto 350. they are all perfect examples- he knows where all the old ones are. I will give you his email if you wish.

Thanks but we already have the AC50 / A100 hybrid and I really want to do an A100 cafe racer first....

so - anyone got an a100 cheap?

NordieBoy
6th July 2011, 17:49
Oh yeah!

:scooter:

Geeen
6th July 2011, 20:01
Noice effort there! Cant wait to see it on the move:scooter:

my_r32
6th July 2011, 21:19
You must be a lightweight! I can't get a standard one over 83kmh!
Haha yeah, female just over 50kgs :p I had this bike since brand new trained it to go fast ;)

cave weta
14th July 2011, 20:41
When will this rain stop? I want to ride the thing!

Edbear
14th July 2011, 20:43
When will this rain stop? I want to ride the thing!

Supposed to fine up Saturday...

Ocean1
14th July 2011, 21:05
When will this rain stop? I want to ride the thing!

It's a postie bike innit?

"Neither snow nor rain nor heat nor gloom of night"...

On yer bike, wuss.

cave weta
14th July 2011, 22:11
It's a postie bike innit?

"Neither snow nor rain nor heat nor gloom of night"...

On yer bike, wuss.

Bling sent!:facepalm: Saturday low tide- far far end of the beach.
Oh I must share a website... www.pmmc,com.au its posties as art

Newo
14th July 2011, 23:10
Thats awesome.

I never thought I could ever take interest in such a bike till now.

cave weta
18th July 2011, 21:43
<a href="http://tinypic.com?ref=210hwz9" target="_blank"><img src="http://i52.tinypic.com/210hwz9.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

I had a few hours at the beach on Saturday...


<a href="http://tinypic.com?ref=2zibw3m" target="_blank"><img src="http://i54.tinypic.com/2zibw3m.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

<a href="http://tinypic.com?ref=k39gsy" target="_blank"><img src="http://i51.tinypic.com/k39gsy.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

White trash
18th July 2011, 21:58
I had a few hours at the beach on Saturday...



Look, we don't care about your wrinkly old, leathers don't fit anymore arse posing on the Postie. We want answers to the real questions.

"How fucking fast is it?"

Edbear
18th July 2011, 22:05
And what's it's top speed as well...?

cave weta
18th July 2011, 22:09
Look, we don't care about your wrinkly old, leathers don't fit anymore arse posing on the Postie. We want answers to the real questions.

"How fucking fast is it?"

ha ha ha!~- I can't open it up to find out.. honestly, either I have a neck problem or my helmet is a wierd shape. Im not sure but I can't see more than 20m in front of me. The helmet face hole is too low, I can't see for shit. the gearing is way too low. It accellerates to 10,000 in 1-2 and 3. thats all I tried. its still pulling at 10,000 well.
I have a 14- 45 at the moment. I will try 15- 36 when they arrive. highest I can go is 17- 32.
and I need a steering damper and my forks need re bushing.
Lots of fun though.

cave weta
21st July 2011, 15:49
It has arrived!

<a href="http://tinypic.com?ref=2wdab1v" target="_blank"><img src="http://i56.tinypic.com/2wdab1v.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

and the sponsors board is printed- thanks to Forza moto, Cycletreads and Linkup Paints BOP.

<a href="http://tinypic.com?ref=2z9fq0i" target="_blank"><img src="http://i52.tinypic.com/2z9fq0i.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

NordieBoy
21st July 2011, 16:39
Even your shadow is faster than you man...





:woohoo:

Edbear
21st July 2011, 16:40
Really cool, but did you notice the spelling mistake on the board? :shutup:

cave weta
21st July 2011, 16:49
Really cool, but did you notice the spelling mistake on the board? :shutup:

Technically.... its a typographical error not a spelling mistake - but yes I did.


well spotted.




I can't wait to give it a sqirt of that Nos!

NordieBoy
21st July 2011, 16:52
Really cool, but did you notice the spelling mistake on the board? :shutup:

What's wrong with ditbikes?

They can be a ot of fun.

Edbear
21st July 2011, 16:53
Technically.... its a typographical error not a spelling mistake - but yes I did.

well spotted.

I can't wait to give it a sqirt of that Nos!

Them there typographs need to be very particular... :innocent:

NordieBoy
22nd July 2011, 14:10
Here's your competition...

501.94kph in 2.4km

<iframe width="640" height="390" src="http://www.youtube.com/embed/kV-TzPTtauE" frameborder="0" allowfullscreen></iframe>

1,000hp but...

george formby
22nd July 2011, 14:32
Here's your competition...

501.94kph in 2.4km


1,000hp but...

That motor sounded very much as if it was saying "I'm coming to eat you!!"

More Postie postings please, been ages since i drooled on my keyboard.:yes::scooter:

Edbear
22nd July 2011, 15:00
Saw that on the news! Awesome achievement! If Cave Weta can crack the imperial ton it'll be a vid worth the news, too! :woohoo:

george formby
22nd July 2011, 15:15
Saw that on the news! Awesome achievement! If Cave Weta can crack the imperial ton it'll be a vid worth the news, too! :woohoo:

160kmh postie bike. Brilliantly mad!

nodrog
22nd July 2011, 15:26
ha ha ha!~- I can't open it up to find out.. honestly, either I have a neck problem or my helmet is a wierd shape. Im not sure but I can't see more than 20m in front of me. The helmet face hole is too low, I can't see for shit. the gearing is way too low. It accellerates to 10,000 in 1-2 and 3. thats all I tried. its still pulling at 10,000 well.
I have a 14- 45 at the moment. I will try 15- 36 when they arrive. highest I can go is 17- 32.
and I need a steering damper and my forks need re bushing.
Lots of fun though.

My neck is ok, so is my helmet. Giz a go mister? :scooter:

NordieBoy
26th December 2011, 17:03
160kph yet?

TrentNz
3rd January 2012, 23:22
where have i seen this before o.o
might have seen it on the nz motorfactory website under testimonials or something
i think i would have preferred spending the money on the 155z pit bike though, but thats just me :rolleyes:

Grantman_
4th January 2012, 20:38
Far out, this is hands down epicly awesome!

NordieBoy
26th March 2013, 07:26
What speed did it reach in the end?

nzspokes
26th March 2013, 07:32
The Postie bike is for sale.

Willdat?
26th March 2013, 07:47
Soooo, what speed did it do?!

DonKiwi
17th January 2016, 11:48
Nice project! My 1986 CT110 is now demanding a new Monza Red paint job (thanks for the Linkup Paints contact) and insists on a "Kiwi Rider" decal as shown on your bike. Does anyone know where I can get them?