@@DatHondaBoi223 you don't even understand how gears work, for some reason I don't believe you. O wait "dathondaboi" didn't realise you was only 12 my bad
The gear ratio its all that matters not necessarily the gear size. The gear ratio for those who don't know is basically the amount of spin that the wheel will do, and you get that number by dividing the number of teeth of the sprocket by the cog. In this case its a 102T sprocket and a 16T cog, so the GR will be 6.3 so for every revolution of the pedals the rear wheel spins 6.3 times. Also you can achieve gear ratios like this by using different sizes of sprockets and cog, like for example you could use a bmx cassette with 9T and match it with a 53T sprocket and you would get around the 6 revolution mark like this bike does but without fabricating any parts.
Tire size increases the speed front gear size increase the speed also rear gear must be the smallest that only exist in some bicycles if you can made smaller one do it the smallest the gear on rear tire is the more speed you get combined with larger tire on rear is matter fronter tire keep it small to reduce the weight
Looks like a bit of fun especially on down hills :) , it might be a bit hard on the knee joints on the flat though , but as others have said electric assist would make it really cool. Very clever making the gear mate , 10 points for innovation .
Будет тяжело крутить педали. Важнее то, что диск почти касается земли. Высока опасность повредить этот диск при въезде на возвышенность, если это небольшая ступенька. На холм скорее всего не заедет из за того что слишком тяжело крутить педали.
I have always thought of this combined with a pedal assist 250volts bldc motor hub to give a start and then the cruising will be much easier. Hope you try to make a project with electric pedal assist and try. It would be a great combination
I thought there might be flywheel action. The important ratio is pedal speed to wheel speed for how fast you can go. Engineers who design bikes use a lot of data. This might be visually entertaining but there is a reason most bikes have many gears.
The one problem I've always had with mountain bikes is that the highest gear ratio was always way too low when going down steep roads. This solves that and then some! If only there were a derailleur big enough to allow switching to a cog that big...
@@KTB23 Я рад слышать, что вы против неофашизма. Тогда вы противостоите неонацистским группировкам внутри России и США. Значит ли это, что Москву надо разбомбить к чертям и на месяцы отрезать от воды, еды, электричества, интернета и связи, пока город «деназифицируется»? Нет. Это было бы вопиющим примером когнитивного искажения, известного как «магнификатион» (т.е. утверждение, что Москва захвачена нацистами, тогда как на самом деле там есть лишь несколько небольших нацистских групп, представляющих крайне небольшую часть населения). .. и это когнитивное искажение, которое кремлевские пропагандистские СМИ ежедневно реализуют.
I cannot for the life of me remember the company that makes them but there’s a manufacturer that makes mountain bikes with a gear cog specifically made to go high way speeds. You have you normal gears and cogs as you normally would have with any other mountain bike but then there’s an “over drive” that more or less shifts the chain onto a gear set from a speed bike
I did a similar thing to my mini bike, the little 2HP thing screamed. Just keep in mind the larger diameter drive sprocket the more torque required to turn it.
When sprocket ratio gets change, there is a change in torque and rpm but power remains same... In short, in this case rpm increased but same time required torque goes high... End result - You get speedy ride but for short time only. After few minits, you get tired by applying more and more power....
True but imagine the speed you get get bombing down hill. The issue going down is that eventually you max out the speed because you can't peddle fast enough to overcome the rear ratchet (wheels spinning at a higher rpm than you can get it to using the peddles). This would be the fastest down hill bike provided you have a long enough hill. I want to ride it down spruce knob. Bet I could get it to 80 mph 😆
@@hikermichael9443 Good point but i'm thinking how could anyone drive this bicycle uphil? Got to have very strong legs for that. This is for fun but not for everyday use.
При такой передней шестерни, трогание с места и набор скорости будет проблематичен, особенно неподготовленным физически человеком. Изматывания ваших сил, вот и всё!
@@user-vg2vr4do3m надо просто встать на педали... пару нажатии и го... набираешь хорошую скорость... а из тормозов есть дисковые тормоза даже гидравлические но думую механические подойдут КаК раЗ
@@one-bq2nf пробовали. Ездить только по асфальту, а по пересечёнке звезда везде цепляет. И на пидали хошь вставай, но очень много сил надо приложить. Мы делали, только с толчка разгоняешь, прыгаешь на ходу, и всё равно тяжело.
Your max speed is always going to be limited by aerodynamic drag vs. power input. When the drag equals the available power there will be no further acceleration and that's your top speed. I should say "your theoretical top speed" because if your gearing is too low or too high you may not be able to reach that top speed. This applies to all vehicles, not just human powered vehicles, including aircraft. When drag equals power, you don't go any faster. I once owned a car with 147 hp and a ridiculously high top gear which would give 180 mph at the 6000 rpm redline. Needless to say the car would never reach the redline in top gear or go anywhere near 180 mph, unless it were driven on the moon where there's no air resistance.
@@alihasanashrafi6058 I think you just have to train yourself to pedal at a faster speed (turn the cranks faster). You are going to blow out your knees pushing that insanely high gear. I've been bicycling all my life and I have friends who have destroyed their knees because they never learned to use their lower gears and spin the cranks faster. But it's your choice.
That's easy to solve though, just draft fast moving vehicles and that'll take care of the drag problem. If you are feeling particularly adventurous get a buddy to fly a plane near ground level and give you a solid draft, you'll never want to draft a platoon again once you've experienced drafting a plane
I had a single speed khs one as my daily commuter and would put anywhere from 5-20 miles a day. I got the gear ratio up to like 48/18 after a few years. It was awesome and I could easily keep up with traffic, but eventually the torque stressed the frame and ripped the down tube in half just behind the head tube
Pedaling forces of any sort from even the most elite athletes won't cause frames to fail. Defective manufacturing is why your frame failed. 48/18 is a very common single speed setup
You can't tear a frame apart by simply riding the bike. Won't happen if the frame is good enough. Take a steel frame, muffed + welded would be best, those things won't break. They can bend but they won't break.
Да зачем такое вообще нужно то???... С горки только разгоняться... А так по прямой даже устанешь педали крутить... В подъем вообще не заедешь... Будешь пешком велик толкать
I've studied on bike gear ratios for a long time and i'll drop my 2 cents. First of all there is a point where depending on its ratio, a huge gear might be beneficial as the longer you pedal the more torque you can produce at lower RPM but NOT significantly more horsepower which determines top speed, but it depends on the rider and the conditions of the road, tire pressure, saddle height and ride's mood. Most times if you are used to it you can achieve the same speed with much lower crank RPM than your lowest gear ratio, but even a slight slope can take away the benefits of riding calmly. I've used to have a top speed of around 50-52kph on a 26" mountain bike with 42t front gear, changed to 48t but regardless if some gears can come close to what they where with 42t, the effort it takes to accelerate or going over a slope or hill took away my physical ability to maintain as high speeds as with 42t even with the stamina being unchanged, however if i ride at lower speeds the effort it takes it's like i'm walking compared to revving the crap out of my legs for no reason. The only good solution for bike gearing is a CVT alike system like Nuvinci, because there are many factors that make the same gears not perform the same for a second time on the same cyclist, but all these come with many downsides. The rule is: Big gears = need more torque = high saddle height = decreased ability of high RPM = Less top speed. Decreased saddle height = Ability for more revving with high gear ratio = most times better acceleration and top speed = knee pain that lead to problems. Choose your side, that's all with bikes.
@@armanrocks8778 not all speeds are the same, every gear has a sweet spot where being extremely high or low gear ratio offers benefits depending on the rider's torque, if this was on my bike i guess i would be riding like nothing at about 20-25kph, top speed might be decreased. There's no such thing as fast or slow gear.
@@armanrocks8778 i bet you can run even faster but you walk at 5kph with the same energy it takes to pedal a bike to 15kph, almost everyone can ride a bike to 30kph for miles and when you stop you're sitting and it still rolls for quite a while, you can't do that with your legs. I'm not by any means a cyclist in my mentality, but i've used to do speedrun races and occasionally use it as transportation regardless if i use a motorbike and cars, but let's admit it's the most energy efficient thing a person can use to move under its own power.
Para alcanzar los 100kms/hs en una mtb o bici de paseo debes reconfigurar los cambios y poner un sistema de 24 cambios punto a punto, frenos a discos, masas blindadas en las 3 masas, cubiertas de asfalto, llantas doble pared de aluminio y un adaptador para el manubrio o manubrio que te ponga en posición fetal para generar la menor resistencia al viento. Y por su puesto un buen entrenamiento. Con todo eso vas a poder alcanza los 100kms/hs. Sino compra la mejor de las mejores bicis de competición y entrena duro y alcanzaras los 100kms. Sino subete a una motito 110cc o a un auto y pisalo hasta los 100kms/hs. Saludos
This is an awesome invention the fact that you can maintain your speed with less effort is amazing. Saying that when starting from a stand still it is not easy to move. And many people think that the bigger gear you have the faster you go yes that is true but it doesn't necessarily mean that you will hit your top speed that simply means a "bigger gear take a lot less effort to move the crank and makes you go a little faster" but it doesn't mean you will hit your top speed.
This was the point of the giant front wheel, direct pedal bikes of 130 years ago. You ran to get them going, jumped up on the tall seat, then cruised till you hit a streetcar.
when i was a kid i welded a crank sprocket to a rear sprocket and had one to one gearing, slow 🐌 but easy off road riding. before the days of mountain bikes with lots of gears.
Your right. Speed record attempts are done with a large primary and small secondary sprocket, but they also use a vehicle fitted with a large board for the bike to run behind to mitigate the drag.
Yes indeed this will makes your bike really gets faster however, it will be very hard to pedal on the start up and you can never use this on even a slight uphill. there should be a gear shift incorporated.
Interesante para combinar con un motor electrico en la rueda delantera que funcione como asistencia de arranque y despues recargue las baterias con la velocidad ,yo con entrenamiento normal voy bien a 25kph casi 15km continuos con eso llego a los 50kph y soy mas que feliz ,mas rapido me parece arriesgado ya deberia tener otro sistema de frenos y una suspension reforzada,pero no la veo mal para el que hace trayectos largos y planos
Wow... Just WOW! Unlike all of the fancy guys that have metal working, do-it-at-home machine shops, this video could be replicated by almost ANYONE with at least 6 tools, many of which a friend or friends PARENTS could have! Very very very very VERY well done! My hat is off to you! I'd love to absolutely see the maximum speed of this bike on a flat street cruising alongside cars without the restrictions of a parking lot! Great job!
Можно брать с собой такой диск для ровных участков Например надо проехаеть несколько Км ровной дороги. Встаёшь где нибудь, меняешь свой обычный диск на эту громадину и едешь дальше Правда на разгоне будет очень сложно
If you make the gear ratio so large, the RPM generated would be very high but what about the force required to start the movement? The bike needs to be very light but again at high speeds maintaining balance would be difficult. It would be better to install multiple gears so as to balance the torque and RPM .
Al aire libre en llano levante 54.4kms/hs con una mtb 05 18velocidades y las subidas con 2da y 3era alcanzo los 20kms/hs. Las bajadas e podido alcanzar hasta 65kms/hs y no soy profesional. Mi mtb es standar con agregados y con el cuadro de hierro, no aluminio, ni menos limado.
My red lines or my jmc's always had a 52 in the front and a 12 in the back the '80s were cool ,this would be something else definitely would like to check it out 🤟😎✌️
Pra linha reta descida e otimo velocidade imenca quero ver subida fica extremamente pesado.esse tipo de coroa lugar planos onde tem muita subida nao funciona
Eu tinha um Speedo Peugeot antiga, com coroa maior de 52 dentes, ela era uma bike muito veloz pneu traseiro tubular feito de um tipo de lona emborrachada, 110 libras de pressão, eu nunca consegui por o pedal leve, chegava a mais de 100 km por hora, está aí nem numa super descida vai ficar com pedal leve!
