Kimjon

Check out ebay...you can get even "cheapererrŕ"

https://m.ebay.com/itm/Rear-Axle-Complete-Assembly-Carrier-Hub-50-70-110cc-ATV-Quad-Bike-Buggy-Go-Kart/111789342017?_trksid=p2504926.m5232.l9681

https://m.ebay.com/itm/Complete-Rear-Axle-Assembly-w-Carrier-Hubs-110cc-125cc-ATV-Quad-Buggy-go-kart-/281750687459?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D20150519202348%26meid%3Dda3346f0c1aa46819ebd38154d770c15%26pid%3D100408%26rk%3D6%26rkt%3D12%26mehot%3Dpp%26sd%3D111789342017%26itm%3D281750687459&_trksid=p2056116.c100408.m2460

This is a real good deal at $100 to $130 posted to nz.

1 hour ago, Muncie said:

I'll be using my V-twin might have to begrudgingly find a go kart axle as that engine smashes anything thats not performing including wheel's bearings and riders.

Good idea.

Surprisingly the big 50mm axles often work out cheaper as they are more common. Hence the hardware like hubs, sprocket carrier etc...all are in abundance at cheap(ish) prices.

Have you seen these guys "Detroit hood tv"...it' ghetto as fuck...but once you get past the gangsta bullshit it' got some mad mini bikes racing.

Shows the potential of these Honda clone engines.

23 hours ago, Muncie said:

Where do you keep finding axles? Do you have a wrecker they come from, building one for my son now as im keen to hoon one as well.

Trademe... that's my go to.

The naomi trike used a proper gokart axle, with the hangers welded on the original drift trikes rear tube. Axle goes through it all. This was a real tidy way of doing it.

The other way I use a lot is a kids quad bike rear axle assembly. The only negative is you have to lathe out the centre of an alternative sprocket to get a suitable gear ratio to suit whatever motor you use. The positive is they normally come with a brake rotor and if you're real lucky a caliper too.

Rear brakes are everything on these. Front brakes are almost pointless. Rear will stop you and you can initiate the skid too. 

Just now, peteretep said:

good job with making so many of these things, but why do you keep making them? is it for mates or something? 

 

also, you should put the wajax motor into something else

I put it down to some kind of undiagnosed disorder. 

Oh and I've set myself a goal to make a total of 9 of these before September for a group of mates. Then we'll all get together and let loose. Equal parts alcohol to equal parts clueless enthusiasm...

Wajax would be cool. But I really like the velo-bike as it is. I still take it for a ride down the road a few kilometers and back once a month...ummm just because.

Progress is slow...but progress is progress:

Oh I do like the way you guys think. Someone ditched the trolley not far from home...I drove past it everyday for a week, until I couldn't resist anymore. The kids love it!

I work a full week like most guys do. I'm just very lucky to have the space and tools to do things with, whenever the urge is there.

6 hours ago, Mof said:

Have you thought about taking the sleeves off the rear wheels and starting a racing series? 

I like the way you're thinking. However they won't turn a corner at all without sleeves on the rear...the kart tyres grip so much that the front end just ploughs straight ahead.

With sleeves they still do about 40-50kph...and stop amaisingly well. And sideways is just a bonus:)

What' better than 1 drift trike? How about 5 more?

Oh yeah...

Block in place. Needs a tidy up...but concept works.

I think I'll call it a day here. Finish up the little bits another day.

Next up is to figure out carburetor.

Carburetor in normal position.

This is the way it needs to face...but the carburetor bowl hits the motor.

"The Furze" cut and tig welded his intake at a wonky angle so it faces forward and on a 45° angle to the side of the downtube. Functional...but ugly. 

I'm going to machine a manifold out of this block of aluminium to space it high enough to just clear the motor. It will is give me an opportunity to machine in a vacuum port so I can run a diaphragm pump to a petrol tank mounted lower than the carb.

Here we go...

Gusseted frame.

Pink bits exposed and well penetrated with a butt weld...hehe...

We have a roller.

Axle and sprocket sorted.

Motor just sitting there for inspiration.

Bom bom. Bom... bom bom...bom....

No more diamond in the sky...the diamondback is no more...

Lest we forget...

I'm procrastinating...I just can't bring myself to sentence this bmx to death! It's just so much fun to ride.

But all good things must come to an end, so my dear bmx friend...it's been fun while it lasted...but your time is up buddy!!!

1 hour ago, Valiant said:

Hope it's not an 80s NZ Bmx to be cut up.

Nope...nothing that cool. Though I did search for a supersport for nostalgia reasons 

3 minutes ago, nvmyvl said:

I've asked about bmx bikes, thru my brother who works for avanti..  if your still keen on some, I will let you know what happens.

 

Thank you. I'm sorted now...but really appreciate the thought.

19 hours ago, Valiant said:

Colin Furze would be truly proud!

Where did you get the motor from? how much was it?

 

 

 

Totally. 100% credit to the furze!

I got the motor off trademe. $75 and came with a very smashed pit bike. Dude must have tried back flipping it or something as only the front wheel and motor were salvageable...the rest was bent or twisted.

I brought a bmx last night. It' way to cool to cut up...but fuck it...I'm going too. So everything is coming together.

Cvt is best. And belts are cheap to replace.

Clutch is okay...but a disposable item. And if geared incorrectly won' last long at all.

Either way will be fine though. Your project is looking pretty sweet!

Love it!

And a licence plate holder/rear bumper/ something to hold on to when lifting it out of the ute.

This will make more sense later on

So I need a 1:1 ratio from motor to axle based on wheel size.

This is the sprocket off the gearbox output shafts. 

So it's as simple as using another one the same eh...yeah/nah... problem is, its fucking harder than hell! Most likely some kind of cyanide harding treatment after machining. That's awesome for wear resistance...not so awesome for me to machine out to 1" to fit my axle.

Solution: dremel time!

After an hour...and I'm slowly loosing the will to live. About now I'm thinking 30K for a cnc laser isn't that much money to find???

Another hour later, i have a strange sense of achievement... i can smell succes near by...

Queue celabration song: 

53 minutes ago, chris r said:

No and yes

Bugger 

2 stroke goodness...yes...yes...yes!

There's gotta be something that'll fit with  bit of cutting and welding. Hmmm cogs are turning in my head???

14 minutes ago, chris r said:

You want a freee pink girls bmx thing? 

Maybe... Are you in the waikato? And does it have 20" wheels?

Slowly taking shape.

Ironically I'm struggling to find a cheap donar bmx to form the front end. Trademe bikes are lsited at ridiculous prices for junk. I want junk...just don't want to pay new prices for it. But I'm sure something will turn up soon.