Joined in 2023 
82 
63 About this deal
After I finished the frame, I measured things and sketched up some rough plans (see the files section for the PDF). The setup with the wheels on live axles etc allowed me the flexibility to use those huge wheels which look great. It added a lot of additional work above sourcing some wheels that have disks already attached to the hub or even drum brakes inside. Here in the UK its hard to buy stuff like that but in U.S / Australia there seem to be many more things like that for sale. This setup means my minibike shoots off from a standing start like absolute stink and will pull power wheelies from a walking pace with a firm fistful of throttle. Nice :-) Plus, boasting a 120 psi pump, it’s another extremely powerful piece of kit, and can repair much more than just bikes, including footballs and basketballs.
I used a hole saw to notch the tubes (as shown) but those with patience can use a coping file too. I always try to get the best fit I can before welding to get a good strong joint. With all the angles a bit off from the tube bending, this was difficult to do! take your time here and it will pay off (as I should have done), While minibikes admittedly aren’t the most powerful or high-performance two-wheelers, they are nonetheless are capable of delivering a simple, stripped-down riding experience that maintains much of the thrills of full-size motos. The sensation of the wind in your face and the world speeding past you with nothing separating you from the ground is in no way lost on minibikes. On top of being cheaper to outright buy, minis are also far less expensive to register, maintain, and insure. If you don't fancy a torque converter, a traditional centrifugal clutch like this one will work fine. Cons: Expensive. Some maintenance to consider as the belt is consumable all will need replacing after a period. The unit is also quite wide giving the bike a fatter, and slightly lopsided look.
1. Dispatch of Your Order
The rights to return your items will not arise if the item/s have been used, damaged, modified or broken. This statement does not affect your statutory rights. The only changes I see today in the basic Duddel bug design is, the advancement in engine horsepower by almost 4 times (!), with over head valve engines. And the addition of a transmission. This improvement resulting in a 35mph top speed carrying an adult, and the machine now being wheelie capable ! In true OpenSource style, the design of my bike here is based on a bunch of ideas I've seen online remixed with my own twists which hopefully someone else can take and remix+share. What’s more, one can thoroughly upgrade a minibike with aftermarket parts for a fraction of what it would cost to build-out a big-bore moto project. And while it is a somewhat niche scene, there are thriving minibike racing leagues scattered across America (and the rest of the world), giving riders a taste of racing without the exorbitant overhead costs that typically come with two-wheeled competition (not to mention a markedly lower chance of injury). Attach the pump to the tyre valve. The hose head can be switched between Shrader and Presta valves easily.
The only small engines available were lawn mower engines. Usually about 1 1/2 hp. flat head engines. Top speed was about 25 mph, (down wind), and whieelie's. (were not invented yet), were not to be had in that limited horsepower range. And yet, with sound of the screaming engine, 25 mph seemed like 50 mph, combined with the teeth rattling solid suspension. It was an absolute blast !Spend a decent amount of time ensuring that the wheel is running true with the frame. I didn't have a scientific way of doing this so I just eyeballed it + used a meter rule to help see angles vs. the frame. Bash true with a wooden mallet if necessary. Style: Half-a-century-ago, the vast majority of mini bikes on the market looked a lot like the Honda Z50 or Suzuki Trailhopper, though today — much like the entry-level bike market — minibikes are available in a much wider and more diverse array of styles and genres, from off-road-flavored minis to pint-sized models inspired by naked sportbikes. The motorcycle world’s love for all things retro hasn’t been lost on the mini segment either, and as a result today’s market also includes a handful of contemporary production bikes that are directly modeled after two-wheeled wares of yesteryear. At MiniBikeKartel.com, we’ve carefully curated a comprehensive collection of Mini Bike Frames to cater to every need and style. Whether you’re a beginner or an experienced drifter, we have the perfect frame for you. I made my Duddle Bug in 1955 when I got into high school metal shop. 3 others were created in our class. WARNING: Since a lot of this was learning on the job, the photos/steps are not perfect. That said I'll make every effort to include enough information in the text for you to be successful. I also reverse-engineered some rough plans and a CAD model of the frame which should help!
The steering yokes (at least I think that's what they are called. The bits that the forks are mounted to) are cut from 6mm steel using an angle grinder / plasma cutter and drilled per the plans (1" hole for the forks. 16mm hole for the steering bolt. The distance between the yokes should be 160mm + enough space to add a couple of washers or bushing, In my case I added 8mm. (I think the plans show it a bit tighter). I was hesitating doing a write-up as I was sort-of learning/winging it as I went along since this my first build. It was also the first time bending tubing (which is something I've been meaning to figure out how to do for a long time!). Anyway the bike turned out great and is an absolute hoot to ride so I thought I'd go ahead and do an Instructables. Fit the tank - I found some runner door stops that made the perfect petrol tank mount. All that was required was to weld on a metal rod for them to slot over. Not a great picture but you can see all this on the picture of the frame sprayed.Like the Cykeway, it comes with ‘Presta’ and ‘Schrader’ valve attachments, meaning it is great for either road or mountain bikes, and its bike frame mount means it can be attached securely to your bike and will be held firmly in place, with being overly heavy so as to weigh you and your bicycle down. NOTE: not shown in the pictures/plans is a little cross-member tube i added to support the engine mount underneath. Simply just get an off-cut of the 1" tubing, not it both sides and slide into the gap + weld in place. Bend the pieces shown in the plans using a 3" CLR die. The digital level comes in to ensure both sides of the symmetrical 'U' shape pieces are straight. As you can see from the pics, mine didn't turn out totally level because I didn't take enough care. That said, it was possible to fiddle things later on to make them line up better. Versatility in Design: Our Mini Bike Frames come in various styles, ensuring you have options that not only perform well but also make a statement. When it comes to taking your mini drift trike to the next level, having a sturdy and versatile frame is paramount. That’s where MiniBikeKartel.com, the most trusted online platform for Mini Bike Frame Collections, comes in. We offer a diverse range of Mini Bike Frames that are built to enhance your drifting experience, using keywords like Mini bike frame, Mini bike frames, Mini bike fram, and Mini bikes frames to ensure you find what you’re looking for. The WIY Mini Bike Frame Collection
Great Deal 
New Comment