Kimjon

Through the magic of the internet, a cvt appeared in the mail today. This was a tad exciting, as up until today I've never actually seen one in person. Now the wajax motor on the bike is pretty fucked. Pete has raced it along the beach (that would have been fun!), unfortunately the salt has got into every crevice and caused severe corrosion to both metal and aluminium. However the silver lining to this situation is there was a second incomplete parts motor included...so fingers crossed I should be able to cobble something together out of the two? I "test fitted" front driven pulley of cvt on second motor, and it's going to fit with a bit of work done in the milling machine to square it up. The cvt is a big mother!!! I up-sized my combo and got a 40 series not realising the physical size of it. Hopefully it doesn't bend the crankshaft with all that weight hanging off it? Like everything else in this build...try and see i guess??? I mocked it up using a plywood template to check clearances, looks like it should work. Down tube will be tight, but I think with some creativity I'll find a solution for that. After all we want "no problems, just solutions"!

Sweet! Will roll with that, and go to plan B if it fails later on. Thanks for your advice.

So you go for it eh?

Any reason why this won't work? The hub still free wheels, is this good or a bad idea? I haven't welded it to the other sprockets yet, but that should hold it fine. More concerned about the strength of the two dogs that lock the hub up when torque is applied. Maybe I'm just over thinking everything now?

And a battery box. Cut about 100mm off its overall length, then cut out a hole out for the battery to sit in. I'll wrap fuel line around the sharp edge by cutting a slit on the outside edge. Welded together. Welding has never been a talent of mine, but I own a grinder! Mounted to frame. Its removable so I can get battery out. Kj

In the meantime, I figured just carry on and deal with rear wheel later. Made some cool struts to securely mount fender: Kj

Dude, that would be fantastic! Don't go out of your way, but if you're down this way sometime in the near future (10 minutes out of Cambridge) I'd love to get some expert opinion. Its a cheap wheel, so I do have concerns. I YouTube'd wiring and soldering spokes. That looks like a great idea too.

Oh Christ! Didn't realise the spokes would be under so much stress. My thinking was a wheel designed to be stoped by disc brakes should be strong enough, as rapid deceleration around the hub is equal and opposite to acceleration from a motor? Usually braking produces more torque than accelerating does. But the top end speed and weight of the bike has increased in this case...dam it...now I'm concerned. Has this scenario shown up in previous velobikes? Is it common to rip spokes out of the bicycle rims? Kj

Gave it another nudge today, got a fair bit done. Welded in new rear end View from behind, with new fat rear tyre. Moved jackshaft location and made up a lower mounting bracket to support it all. Starting to take shape now. Kj

As they say...to make omelettes, you've gotta break a few eggs! So, fully committed here goes: Limited time to spend on it, so mocked it up for a rough overview. Looks crappy now, but should all come together at the end.

Awesomeness! Thank you. Going to give it a try and see what happens.

On the velobike motor (2 cylinder, 2-stroke) there is no spark. How do I bypass the old coils, with another car coil and battery?

Yes, kind of. A little bit of everything, but some quad steering components were used. Its quite big at 1.5m wide and 2.5m long. Has a DR200 motor, so unfortunately no reverse gear. In that clip I'm being a pussy, as I ripped the shit out of my lawn doing donuts...so I'm trying more challenging grades to test its limits. Those hills are steeper than they look.

Not exactly epic progress, but I felt the need to make a bobber style license plate with my race number 52 on it. Then today at a car swap meet in Hamilton I picked up a cool chromed guard for $20...Yeah, I know...he saw me coming, but I really wanted it. Then I picked up a "fat bike" dirt cheap off trademe, with the idea of cutting it up. I want to use the rear end on this velobike and the front end for my next drift trike project. Problem is my kids found it and now I'll feel bad if I cut it up? Hmmm undecided on this one? Anyway, progress is progress...all be it rather slow. Kj

I got this off trademe, it has possibly the worst welding I've ever seen...but with minimal effort myself and mate of mine got it going last night. My mate reckons it looks like something out of a war torn African province, just gotta add a few machine guns and a flag! Hence the nickname. Now anything that goes is a rarity in my life...so this bad boy is fast becoming a favorite. Kj

Not this one, but I'm in a rural fire team and have used wajax pumps many times. Main issue is that this one has been butchered, and from what I've been told has issues with overheating. To get it running again will be a lot of work, and then it's going to overheat when it does...so I'm thinking of looking for an alternative?

Thinking of ditching the wajax motor, the drive system, and rear end...well pretty much everything from the forks/backbone back. I have some cool ideas to make it more my style...watch this space. Does anyone have any suitable donar motors out there for sale? What hp should I be aiming for to be amongst the pack? Is Dromeggedon happening this year? So many questions...sorry. Kj

I hate shopping, but even i would volunteer to do the shipping in that!

Scratch built velocity stack. There are easier ways of doing this...but I only had a scrap chunk of aluminum at hand. Yes I know you can buy these for very little money off trademe...but where's the fun in that?

This was an easy project. I drew it on a sheet of plywood, used a protractor to find angles...went to an exhaust shop and the dude looked over his shoulder a couple times and said "you do it, but do it quick before my boss gets back". He only charged me for the steel, and it only took 5 minutes to bend and expand the joins. Next time I go there I'll take him a box of piss for being such a GC. Kj

Yeah...umm, yeah... it's not a Harley, but it certainly makes anyone who uses it smile:D I even hooked up a dyno to power the head light. Kj

Some clever ideas. I'd over complicate it myself and it still wouldn't work as well as yours. Watching with interest.

Awesome! Should be nice and safe too

I've always been one to have a project or two on the go. Then there's the ones still in the "planning stage" i.e. they only exist in your imagination. Well there's nothing like a deadline you cannot negotiate an extension on (Christmas), and kids would have to be the toughest of all the negotiators to deal with! So when I foolishly thought out loud 3 days before Christmas about an idea I had - that may or may not work??? ...well the pressure to deliver was all on! So: String line and inclinometer dusted off Holes dug, posts in, concrete mixed and poured. Guy wires, main cable tensioned and clamped (that sentence sounded flippant-ly easy... this was a challenge) I had three bits of wire rope. The longest was 50m, so this became the bit between the two posts. I then machined up a connecting rod for each side, that hooks up to the guy wires. Complicated solution...but it enabled me to get the longest span with the free wire rope I was given. Its designed to slip, so tension remains the same in all components. I used basic trigonometry to calculate the forces involved. But if my theory is true, then it should all be good. So I'd call it a success. Now 4 months old and still working well Kj

Tank now fully attached. Two pairs of tabs front and rear, split so one is welded to frame and the other to the tank. This way I can unbolt the tank if I so choose. Kj