It's why I bought an EV motorbike instead of a 125cc. I've got 8000w peak power and 72v 48ah battery on my electric dirt bike and it's fully UK road legal as well. 0-30 in 2.9 seconds is what I've measured lol and it's restricted at 54mph sadly which is strange as it can maintain that even up a kind of steep gradient.
I only wear one at night, in the day time...naaa 😂.. its safer like but ya just look stupid wearing them 🤣.. I thought about wearing more a motorcycle helmet but that's just OTT for a Ebike that goes 30mph. I'll risk it for a chocky biscuit plus you only live one very short life so might aswell live it to its maximum 🫡
I Myself am a teenager and you are correct in a way haha. i have the 2000w kit and oh man, the temptation of just full accelerating all the time. dw i do keep safe by only going high speeds on empty roads or off-road. but going 20-25mph in a town where i can be the same speed as the traffic makes me feel so much safer and more relaxed.
I have a 2000w kit and for me it’s plenty. Going 35mph down my favourite trails is more than enough to get my adrenaline flowing. It’s always a good idea to upgrade your brakes to handle the extra speed. 🤘
4 месяца назад
what battery did you get ? or other battery from amazon?
I’ve had the same sized powered ebike kit (not Kirby) on a Halfords pushbike for nearly 5 years and I’ve done 50mph only one time (on private land) just to see what it was like, it was ok but I honestly believe the sweet spot is 27 mph for this type of combination of ebike. Having so much power is great for the acceleration up to the cruising speed of 27mph and it’s very handy for getting out of a potential conflict with another vehicle.
Mine does 35 top end speed and I agree that 28-30 is the ideal cruising pace. Plus I can gear nearly every bike to have a comfortable pedalling cadence even at that speed I still like to pedal.
UK law on them sucks. The only good thing about it is that it's not enforced because our government have underfunded them for the past decade :). I ride my 1500w like I'm on a normal bike and nobody even looks twice. In a rural area like where I live you need to be able to get to the next town really quickly if needed and a quick ebike is perfect for that.
15mph is a joke, when you can pedal faster. I did well over 40mph going down steep hills in Wales, it feels so much faster. I don't cycle on the side of the road if there's potholes about, that's too dangerous. Drivers complain if you cycle further out, but they also complain if you swerve to avoid a pothole.
I can get to 40mph on the flat, 45 down slight incline(15.5mph without special effects obviously) running a 52v 20ah battery, 45a peak on 1000w hub motor from 1000w Terradise kit & Risunmotor controller & display combo. Doesn’t sound overly quick but for anyone that isn’t familiar with the availability of speed on a 20kg bike, it’s too much or at least can be. When I started on 500w with a 15.5mph limiter, it felt great, got up to speed with no issue, battery lasted ages at limited speed etc… that got boring so I removed the limiter and managed 24mph(was 36v at this time) I then shunt modded for more torque and went over the top pulling 1800w peaks which caused me to replace the battery fuse for higher amp as it kept popping. I then went for a 48v 13ah pack, slightly better acceleration, wasn’t keen on the 7V voltage sag under load but it was fun nonetheless. Top speed at that point was 28mph which prompted me to get a better controller with field weakening which got up to 32mph. Upgraded to a 20ah 48v battery which gave more range and less sag. Then upgraded the controller to a 2000w one with no field weakening, dropped top end to 30mph. Bought the 1000w kit with a better wound hub motor which gave me 35mph top speed. Got the new Risunmotor controller and that gave a little more. Eventually ended up with a 52v battery on the 1000w hub and Risunmotor controller, shit torque for 2kw but nice top speed. My point? If I was to jump straight from no power to 52v I would have definitely killed myself several times over. Start lower speed and work your way up once you’re fully comfortable and competent. My next step is gonna be a shunt mod on the risun controller for more torque; whether my battery can handle it, we will see. Here’s a question for you though Dude Stuff; do you have any recommendations for low turn motors with a high top speed and maybe high turn motor with great torque but high efficiency and power at low speeds? (Non geared) would be interesting to test the difference at the same power levels.
Mate, most of the time no helmet, no tax, no insurance and riding that fast on the pavement where kids could wander out of their houses... I really do think you should have a word with yourself.
why are there all these creepy trolls trying to defend the dangerous behaviour. these are the same cowards that will cry like a baby when they caiuse an accident.
That one is definitely OTT. Insurance is really about liability to others particularly in terms of injury. If somebody stepped out of their garden onto the pavement that you were hooning down at a ‘loose’ 15mph and you hit them it would make a tidy mess of both of you so it needs to be mandatory for a machine like that. However, an eBike speed limit of somewhere around 25mph without all the regulations seems to be reasonable to me.
Thats the name of the kit when it happens the BONKERS kit. PS where are the hi power riding flip flops. Got my 2000w kit a couple days ago just waiting on a few parts to turn up b4 fitting TANUS tire liners to avoid punctures and the aggro of changing a rear flat / 220mm front disc & the mount to switch from 160mm. Rewatching your full fitting video for the 10th time
Put schwalbe tires on your bike as well mate if you don't want a flat. My bikes done 3000 miles in the past 11 months through some awful maintained country lanes as well as the city and never had a flat. The tires are still in excellent condition as well I reckon I can do another 3000.
Seeing this I definitely want to go for the 2000watt kit.... I was in a motorbike accident and broken Fractured my femur pelvis and hip 5 years ago.... Not my fault either... Please just be careful definitely a helmet is required for this
There are plenty of ebikes that are made to and can handle 60mph . While I don't agree that anyone should be able to ride one I agree that there should be some special licence or training course for it similar to cbt . What happens however it you then need to add brake lights, indicators etc which then adds more weight to the bike . It should be in a class of its own as it will weigh far less than a 125cc . @@RMF76
People would absolutely buy this kit including me. Sometimes that power isn't necessary for top speed but rather for people who live in areas with a lot of steep hills. 1500/2000w is good enough for flat roads but when you approach 30° hill it just dies on you. Couple things for you to consider-you should try to find controller that's compact enough so it can fit inside the triangle of M/L frame. In order to do that you should sell batteries with smaller capacity. 24ah is amazing but for most people who commute to work/school etc 20 or even 18ah will be enough. Second thing is not for you to consider but rather for people who buy this kit. UPGRADE YOUR BRAKES. Top speed is not the most important thing when it comes to ebikes if you can't stop it properly. Shimano saints, magura mt5 etc are the brakes you need. Those cheap tektros, old avid brakes will be cooked after few aggressive "15"mph rides :D
There's one hill on my commute where even with 1500w on full power + my leg power I still can't go faster than 14mph up there and it goes on for almost a mile...🤣. I feel like that's the only time where I think to myself I'd like more power.
Tbh the problem with most of these cheap Chinese DD motors is that there are no options to have different windings. I'm pretty sure if there as less windings the torque is higher, but top speed is lower for the same amount of volts and amps put in. Also, where are you that 2000w is dying on you ? Must be steep😂😂
Nice build my brother. Upgrade that fork to a through axles and 38mm you won't worry about the speed wobbles so much anymore. Bigger and better brakes are a must for stopping that weight. Cheer's
That set up on a dh bike would be mega, u need a slack head angle at them speeds to keep it stable and big brakes. Im thinking saints with 240mm rotors. Been on a 40mph set up on a commuter bike and it was terrifying but thats what made it so fun😅 i wouldn't be on the pavement tho someone pulls out of there drive your toast
You're spot on with the analysis of 15mph is too slow, I have a 250 Watt mid drive bafang motor fitted to my mountain bike and it's not quick enough to get you out of trouble, I've had many occasions where I wish I had more power just for 10-15 seconds to get me out of danger. On the other hand I still like the 250 Watt because it still encourages me to use it for exercise. It depends what you want the bike for, I do agree 15 mph is too slow.
I watch your clips over and over on the tv then comment on my phone man keep the videos coming I’m gonny get my self a helmet for when I upgrade my next bike I kinda want the 60 amp now haha .. I’m still loving the 2kw kirbe kit no complaints mate your videos are what sold the kit to me best money I’ve ever spent lol just would love to know what the bms is like in my battery but I don’t want to open it up and mess about at the same time 🙈 recommend a battery dude please 😂
Been thinking about an Ebike conversation since about 4 days ago when I was advised that the noise on my 19 year old two seater convertible I bought new is the Alternator bearings that's damaged the pump and A/C pump which is going to cost around £1,000 and not to mention I used steel seal for a cracked head that was caused coming back from Holiday in Cornwall that got me lost resulting in a 9 hour drive that F ed the Head so I've had enough of cars and paying out. I want one of these bikes when my car grinds to a halt. Luckily it still passes the MOT with advisories. Thanks for the great video best wishes from East London.
I like diy full suspension MTB with 2000w rear wheel and 1000w front... 45a/22a dual 48v batteries. I've built 4 ebikes to find what I think is a perfect combo. I'm building a 3000w/1000w bike now, but I think that is overkill. 32 mph a safe top end.
Nah cant agree on the licence thing . Road cyclists can hit 20mph and even 40mph down hill . Should be like america with 750w limit at least . Registration isn't a big deal and insurance but that's it .
A pretty usable bike in my opinion, that would make for a good commuter. I totally agree that if you hold a driving or motorbike licence, you should be able to ride more powerful ebikes.
Great video, I'm looking for my next bike build, still running my 1980's Raleigh on 72v, so time for an upgrade, could you sometime do a video about what make the best bike candidates for hub motor conversion?
"As just as safe on my motorbike to myself and others." From a man on his bike on b road with no helmet or leathers. I hate to be that guy but kids have died all over the country pushing there parents to buy similar bikes on the back of videos like this because there not wearing safety gear. Hit and runs in parks is another issue and another 2000w at the wheel doesn't really improve safety vs the motorbike either . Not to mention the mandatory training to handle the motor bike but you made ot all about insurance... Kinda weird. Every death is another inch we move to stricter regulation, something I dont want either. Your not Hitler but some on the stuff you say clearly is not a fair comparison. You want to tackle the stigtism of ebikes but the stigmatized use of safety gear is the bigger issue.
A few seconds into the video: No helmet. All dark clothing. Hands constantly leaving the handlebars. Small front brake disk. Untested load bearing capacity on a random donor MTB. Very poor road positioning with a car following. Every point can and will be used by "the powers that be" to ban e-bikes in general. E-bikes really need to be in specific regulated classes. Requiring different levels of insurance, speed rating, frames, geometry, brakes, helmets, lights, mirrors, suspension, etc. It's not all negative: The video was well filmed and recorded. With clear sound and very informative dialogue by an experienced e-biker/motorcyclist. Final note: The European 45kph/28mph "Speed" e-bike class, with pedal assistance and NO throttle is a nice performance level. When the machine is specifically designed to cope with this speed.
The UK government are having a review today (29-2-24) about ebikes. On the table is doubling wattage from 250w to 500w. Also allowing a throttle. Max speed would be the same though. Better, but is it enough? I'd like to see 20mph upper speed limit on the table too.
It would definitely be an improvement but I rarely see the government allow anything that just makes life better for people without lining their pockets or adding some more control over the average man. But fingers crossed!
I would like to see ebikes with motorbike suspension brakes indicators and mirrors dirtbike and road bike styles. Basically lower powered electric motorbikes with Pedal ability but a range of speeds from maybe starting at twenty and going up to to sixty. So that they can accommodate people of different age and experience and also be more affordable than the motorbikes we have now😊
15mph is too slow and can be quite dangerous in stop start traffic but on the flip side common sense escapes a growing number of human beings these days. Just because something can do more than 15mph it does not mean we have to do it I consider it as a safety cushion to have more than necessary whether it be a bike/car or time.
I would buy one, not bothered about it doing 50mph just one that can get me to work and back and get up hills easy. I’d be even willing to insure it. Great content. 👍👏🏻👏🏻👏🏻
the QS273 with a bit of mechanical skill will mount to mtb if you find the right one. check out e-bikeguy honestly a QS205 v3 with statorade and hub sinks for cooling is a real lot of power, will fit mtb just fine. and Id argue that is enough sickeningly fast, 5T version is like twice as fast as sur ron. with a fardriver ND530 or 680 and those 2000W motors are great, and can get you to top speed. But with a higher end controller and motor, the pull is strong.
I have a 2000w kit I use for commuting and for me it's perfect other than I would like better range but dont want a huge battery. This kit would be fun but pointless for me personally. I just want good torque with a good range.
I would buy this it's fast enough but still looks like a bicycle, I would cruise and maybe open it up on long stretches where you can see way ahead. I want an ebike but they're either ugly or look like motor bikes, my road bike will roll at 35mph on a slight descent.
@DudeStuff Hey just a quick question- What are your thoughts about pushing 4kw through 1.5kw/2kw hub? My idea is same battery, same controller just 1.5/2kw hub. I know it's not designed to do that etc but weight difference is quite substantial. Plus it would be a bit cheaper to get smaller hub motor. Want to know if you have tested that kind of power on these 2kw hubs?
Much more chance to get stopped and fined by the police with a moped looking e bike 🚨👮🏻♂️ Whereas a e bike that looks like a bicycle won't draw attention to the police!
Sweet!✌️ Specks looks great, just ar fast moped! What range does it have at full blast? How much did all kit cost, where did You get it? I want one, just not sure if i can afford it..🤔
it is an interesting video and topic - although considering youre on busy roads, and roundabouds with no helmet, eye protection, no hi vis, no lights, no rear view mirror, no brakes at speed, it seems dangerous and thoughtless to other road users? if you had at least - a rear view mirror, hi vis, good brakes and eye protection, it would be more reasonable - in terms of reducing your chances of causing an accident.
Yeah, and not be riding at 50mph on the sidewalk. I'm no nanny but he is being irresponsible and dangerous here. No one needs a 4000W mountain bike. That really is motorbike territory.
@@sharpvidtube when a small fast object dressed in black is flying down the road, its hard to see. hi vis is designed for daylight - it doesnt function in the dark. your lack of understanding on hi-vis use is concerning - its not a complex topic, high visibility clothing makes you highly visible (obviously) - and every moto instructor teaches it. it sounds like you "shouldnt be on the road" ? hopefully you wont be getting yourself or anyone else killed with your lack of understanding.
How hot are the brakes getting? It would be interesting to see stopping distances with current brake setup. Maybe take it somewhere out of the way and set up a couple of cones and brake down from 50/40/30. Then see how many times you can brake from say 50 to 40/25/10 before brake fade. Also, with the bigger kits like this, what are the stresses on the frame over time. Is metal fatigue going to be an issue due to flex. Some might say it is a mountain bike, so OK. I am concerned this is may be too much for a standard frame. Stay safe, dude.
Seems like a bike you'd need motorcycle gear for that and yeh for someone whose only ridden a push bike. It's a bad idea. Although looks mental and like the colours. Does it look more purple when it's not on camera?
I can get 38mph out of 1000watt hub 52volt battery 40amp controller get about 15 miles on a charge if i run it flat out constantly, 30 amp controller gives me 20 miles but wont go over 35mph and is shockingly slow of the line
I know you know what your doing better then anyone but maybe some triple clamps upfront might add that little extra weight you need keep the front end down 👌 worked with mine like
My bike does 40, maybe a tad more with the wind in my back and a tad less up a steep incline. That being said, mtb's are actually made to go *that* fast, or more... the world record for a downhill mtb is 167Km/h. There is a difference in quality of components, but he was using a stock frame. As long as you stick to the actual known brands, I wouldn't start worrying about the bike until I would probably double the speed I'm going now. Frame would hold that just fine. It's the brakes which would fail, since I'm using stock 2 pot xc brakes, not even proper DH brakes which would be fine. Most importantly, the component which would fail is without a doubt me the rider. Bicycle infrastructure isn't made for high speeds, not withstanding the 'other traffic' issue. Just because the bike could do it when prepped correctly, and probably I would be perfectly fine riding at a place designed for it, it's absolutely going to put me in a hospital if had an ebike which would do those speeds and I would use it on public roads. Mopeds due to their accident rate ( and consequences ) were forced to wear helmets here, when they are allowed to go only just as fast as en ebike. Hitting concrete or asphalt with that dome surrounding your brain. while not wearing a helmet, even at 40km/h can end quite badly. 40Km/h is plenty of fast when your bone's are the only structural part trying to stop all your mass from carrying on in the same direction. Once you're reaching 100km/h, you're no longer in moped territory ( tuned mopeds can but most don't go that far ). I feel like: if I wanted to go those speeds, I should be on something which fits the infrastructure I'm using. I ride my bike with shorts on all the time if it's hot, I wouldn't get on a motorcycle without propper gear on. Speed alone isn't an issue, it's the infrastructure and fellow users of said infrastructure and the gear you're using. I actually think most people would be perfectly fine on a 20mph ebike, it matches better with local infrastructure certainly when our politicians finally change the max speed in built up area's to that same ~20mph. It would decrease accidents by so much if all users are going around the same speed as traffic will be much more predictable.
Yup. I frequently get overtaken doing 30 in a 30. I got an illegal bike because I thought drivers would behave if I could do the limit but nope, my experience has been the complete opposite lol.
@@JudeTheRU-vidPoopersubscribeSame lol, I look back and see a car a mile back and think there going to take a while to catch up and not that long after they are behind me or going past me wtf.
@@sametribeeverytime2 I live in a rural area it's 7 miles by country lanes from my house to the nearest town and most roads around here have zero speed limit. The ones that are a 30 zone people just ignore and drive at 45mph instead.
This video will be used as evidence once police see it because it's now classed as a motor vehicle and not a pedal assist bicycle and no insurance you'll end up getting band from your other vehicle riding this conversion
Just becarefull as to not shear off the back with that amount of power😂. As ya say mate bicycles arnt designed with a motor inmind.. aluminium is light and kinda strong but not really 4000w power strong, the motor will stretch the aluminium which in turn will compromise the strenth at the back.. So basically one day youll pull the throttle and the back end will snap and the wheel will be flying around erverywhere 😂.. Anyways great video mate 👍 appreciate it
Wish mid drive would go to 4000w\higher without paying an arm and leg for custom😅. Sucks bafang is gimped and being regulated but other companies arent weird...
I own a Rize Electric Bike (Blade 2), with a 1000 Watt Bafang rear hub motor and a really great on board programmable computer. In the special "Unlocked" mode, my bike can do 50 km/hr. Even at the locked in limit of 32 Km/hr, the speed feels rather dramatic - Especially down hill. Now, my Blade 2 weighs in @ roughly 90 LBS. They list it @ 85 LBS, but this beast of a bike feels closer to moped frame weight than it does to a regular sports bike. One of the concerns I have about going at high speeds on electric bikes is can the bearings handle such highway speeds ? If you go 40 or 50 MPH on a bicycle frame which was not designed for it, then what can happen besides the possibility of high speed wobble ? Is it possible your front or back wheels could fail ?
