THOUGHTS ON MY CRAZY 4KW MID DRIVE BUILD

[@cultureofcritique9735]

That speck of mud on the lens drove me absolutely mad throughout the entire video.

[@andykirby]

Think what it was like for me editing!!😅

[@christopherroberts22]

OCD!! ;)

[@fullmetalbacon5615]

Was pretty distracting until the second. Showed up that everything was cool...🤣

[@fullmetalbacon5615]

@@andykirby I'm a brilliant bike designer from Seattle and I just stumbled across your Channel, WOW! Bravo well done. You are doing brilliant things PS your editing is totally cool but it was much much better after the second speck Showed up adding in my opinion a beautifully balanced and earthy tonal balance to your filmatic endeavors LOL, cheers stay safe-B

[@solarfunction1847]

Andy every time you strip gear cogs on your rear wheel cassette gears, you need to replace the gears & replace the chain before it begins to wear out the large chainring on the cranks. The reason it's stripping teeth is because the old chain has been stretched where it does not fit properly into the rear cogs on the cassette. Before adding a new chain, strip it clean with engine degreaser & on low heat on the stove liquefy some household candle wax in an old pot you will never use for food again, once it's liquid take off the low heat & add to a clean old glass coffee jar 1/3 of the jar, add another 1/3 Paraffin Oil to the melted wax, add another 1/3 of Xylene & stir. Empty out your old pot of wax into a separate container for use at another time. Put in your chain into the pot & pour in some of the 3 part mixture of Wax, Paraffin Oil & Xylene into the pot to cover the chain, heat on low for several minutes then take out, hang up & wipe down. Put your chain back on your bike, the 3 part mixture can be put into a squirty bottle to use as a bike chain oil for when you need to touch up your chain after washing from going out in the mud. The wax, paraffin oil & xylene act as a lubricant & waterproofing that prevents chain stretching & improves the longevity of your chain to get around 9 times it's normal use if you just used oil so it will save loads of money in replacing chains & cassettes all the time if you take care of your chain which you are not really doing.

[@Spanky8402]

I am surprised that you don't do a fat bike, ebike. That would give you more convince and safer on loose surfaces but it would be more weight. I love my fat bike, ebike but for regular riding, I do get worn out faster but I also get more exercise, which is why I am glad I got it. I love being able to use the motor to an appointment and not being sweaty and then ride it like a regular bike back home, for a workout but yet have the motor to help with hills or getting across roads faster. I get cut off all the time, so the motor is amazing for getting up to speed, while being in top gear. I love my bike and I can be upset about something but the ride will make me happy and I forget what I was upset about or at least help me figure out a way to get through the problem or at least help pull me through the problem.

[@TheWebstaff]

also 4kw = 5.36409hp in case anyone's interested.

[@markifi]

that's a good pace for something with only 5 horsepowers.

[@FlyingFun.]

5 hp is not much by today's standards but think back to early motor car and even some planes flew on not much more than 15hp which is crazy. We are addicted to power in our cars etc these days , would be better to build more efficient vehicles which can perform well with less power, keeping it lightweight and thin tyres would make cars more efficient but of course that comes at a price safety wise.

[@markifi]

​@@FlyingFun. I share this sentiment, I was always fascinated with streamliner motorbikes for example, also, some Indian made scooters consume very little. I think it would have been much nicer if some time during the last century we would have prioritised railroad freight transport ten-fold, and restricted trucks to some ridiculously low speed to discourage their use, then we could have stayed with very light cars for transport and same lots of fuel. (I'm thinking 300 kilos instead of 1500, and 1 litre of consumption in 100 km-s instead of 7) Now that we are moving towards electric cars, efficiency is going to be a non-issue. I suspect cars are going to be even more heavy and robust, but with electric it won't matter whether you consume 10 kWh/100km or 20kWh/100km, so everyone can just use hummer sized monsters and be safe from each-other.

[@FlyingFun.]

@@markifi electric is so new relatively that's really it's not clear what the true cost of running them is, electric isn't free unless it's produced via solar or wind etc which most of it isn't yet so I would think efficiency in electric will become more important as time goes on maybe? Just think if everyone was running electric vehicles how much energy would need to be produced in order to charge them all up when we get home from work.... An extremely efficient car with a really good solar panel could make a LOT of sense combined with solar panels on house roof and power banks to store the energy.

[@markifi]

@@FlyingFun. ah, well, we'll see. Unless the current shortages of batteries keep being a problem for decades then I see that being a problem, but I would be surprised if people would be willing to give up perceived extra safety and comfort up for efficiency. Autobahn 200 km/h electric G wagons are the future of mobility.

[@tregarrock4197]

Great video, have loved this build series you have done. Looks like a riot.

[@wavestherules558]

Try a cyclone 4kw mid drive and you will not have problems pulling away Andy. I'm 60v 16ah worth of multstar lipos with a 60amp Bluetooth BMS and a 100 AMP controler with 24inch wheels. it's getting me to 44mph. A lot of fun. you could also do with a hard case for your batteries its not a good idea have bags when going through undergrowth. like!

[@andykirby]

Yeah, the Bafang Ultra is a great motor and the frame I’m using has the motor mount for it so there’s no way of using another motor without it looking like a massive bodge job! I’m contemplating putting a cyclone on an enduro ebike frame and using a BAC2000 or 4000 and running 4-8kW I reckon that would be insane! Cheers!

[@wavestherules558]

@@andykirby Oh, i didn't realise the frame was spesific to the motor . Used to be bafang was just a motor kit like cyclone. The BAC is well out of my price range. I opted for the Kelly mini brushless it's small, cheap and gives 10 sec at 200amp. well enough for standard 9 speed chain. Glad to see you going mid drive. many thumbs ups

[@jamiedavison13]

Ive got a 26inch by 4 inch fat ebike. I find the motor on it to rather sluggish for it. I have eyed up a 3000w hub motor for it. I do find times that I could do with some extra power to get out of tricky situations when in traffic.

[@julianowens4071]

Love the projects, have you considered creating a 2wd For extra traction?

[@markifi]

if you have that sort of power you could convert to a single sprocket on the back, single speed chains last a lot longer. 9, 10, 11 speed chains cost a lot and wear out really fast! (5000 km?)

[@sixahem]

Andy,Will you be doing an all wheel drive project ?

[@hasoevo]

Those high-speed rips look so mental through a headset. Thanks for giving me my cardio for the day. Like your intro music too. 👍😎

[@andykirby]

Wow that’s pretty cool, I’ll have to try watching through a headset😁 it’s very wide angle so I bet it’s quite immersive.

[@hasoevo]

@@andykirby 😎

[@MrShott13]

How good is the weather sealing on the throttle handle?

[@ninjaunknown1093]

Hi Andy what’s the cells used please I’m building something similar soon and want the best.thanks

[@andykirby]

Samsung 21700 30T, amazing cells.

[@ninjaunknown1093]

andy kirby thanks for the reply

[@LeoEnlightened]

If i get a 2000w motor will i need a 2000w battery to maximise its power in the wheel? And as for the controller, say i have 2000w 48v motor does the contoller need to match it, im new to this and looking to build myself a ebike from scratch, iv got an idea of the parts needed but getting the right parts and making them work together im concerned about screwing up if i get a motor and the battery and motor have different volts and watts etc, do they all need to match? I assime theres a rhime and reason to how these machines parts work together in regards to there currents/power which i will hopefully come to understand sooner than later, any advice?

[@christopherroberts22]

My Befang BBSHD went fully submerged through a rock pool up on the Norfolk coast recently (Wells next the Sea.. Bloody awesome for eBiking when the tides out! give it a go fella! Racing the horses was immense) .. Seems they did a good job of making them water tight !! Awesome vids Andy ! Great work ! Seems you need some Subs to come join you for a thrash one day ! I'm up near Walden ;)

[@a-aron2276]

I'm having the same issue, i got a high torque motor instead of a high speed motor, tops out at 65kmh, but holy shit balls the power is something else. I didn't expect it and almost flipped it at the lights, today was day one 🙂

[@jonneilsmyth9107]

im not a speed freak can you tell me do you get thease rewound how do you get high torque and low speed on a hub version ??

[@michaellange7819]

I just love your builds Andy!!! I did order a Bafang Ultra yesterday, hoping it will arrive until christmas. Choosing the mid motor because of the stealthy optics! (knowing there will be extra work to get it running exactly like i want it). Based on your videos i think i will be attaching some custom hall sensors to the motor. Im looking forward to see you doing some pioneer work regarding hall sensors :)

[@Gamen4Bros]

Loved this video haha. Subscribed man!

[@patrickbonin137]

Nice one Andy..just spent 16hrs doing up my fat bike to the next level...tomorrow test day. ps buy peel off mud wipes..for your camera...😍❤

[@andykirby]

Yeah that mud splat was annoying esp as it happened so early in the ride😅 what you running on the fat bike?!

[@davidwatt6646]

are you planning to make a video about that ? i got my new fat ebike from alibaba last month and it has 60v 18ah for battery and a 2 kw rear hub motor

[@patrickbonin137]

@@andykirby ..750watts with a bafang 850c display.on a 52v..20kw battery..reention pack

[@christopherroberts22]

Sanyo NCR2070C 20700 3500mAh - 30A ... Seems like a better option for power & capacity !?

[@stuartjohnston7364]

Hi Andy, big supporter of your work! Inspired me to create a couple so far. My Mrs is 37 weeks pregnant and still riding to work on a DIY ebike. My next step is battery building (for which you and Vortecks have been amazing), just curious on how far you covered today? Have you a rough milage please? Middrive seems more eco than hub. Seems like hub for HIGH power, mid drive for eco and balance. Thanks for your time and the vids! Keep up the good work! Stu

[@rickdavid1795]

Awesome build

[@RoperMotorsportTV]

Have you any plans on selling a 72volt battery for the vapour? In an actual case like your 52volt battery?

[@Walterz930]

Nice video because of you now I really want to get a motor do build my own

[@hhead56]

Love the power thanks.

[@PeatedSander]

Really need to go through the process of hooking up your torque sensor seeing as that’s the highlight of the Bafang Ultra. Many of us want to use it so please consider us.

[@FNUKSTER1366]

Brilliant video , awesome bike 👊

[@b17marko]

Good lord that bike is insane, its the closet thing I have seen that could possibly compete with a smaller CC engined grasstrack bike.

[@Soras_]

are this M620 motor？

[@williamrobinson6745]

AWESOME BUILD !!

[@yj8471]

Come on Andy when are you going to test the ASI BAC 800 controller ? You love pissing around with controllers? Lets see if it goes faster than Justins Grin Phaserunner ?

[@gordonwest2655]

Sure enjoyed you’re review and trip but especially all the tech notes!

[@supernova1976]

Is it more fun the the other hub motor bike? is it the power delivery difference that makes it fun, it sound like a turbo vs naturally aspirated engine in cars :). Best video by far

[@andykirby]

Yeah it’s more fun because it’s lighter and more nimble, the power delivery is nice and it doesn’t feel heavy at the rear, and I like the sound of that motor under a lot of power! My other bike is quicker though and feels more stable on the road.

[@Vladimir-hq1ne]

May i ask, how much thye frame and all the suspension would cost? Just round - and about, not exactly?

[@bodeydestefanis6343]

Hello Andy what do you think about the asi bac 4000 controller and thr lr big block

[@tonyfeuerhelm]

...watching you blasting around I would not survive long after a few pints driving on the wrong side of the road in the UK...A.C.Feuerhelm...(from California and the correct side of the road)

[@infratuna]

That is inspiring! Why don't you have full coverage fenders?

[@gamingcustomz6296]

I'm building a bike about the same as your other bike but a little more powerful I was wondering when wiring the charging port do you connect the negative on the bms to the port and then the positive wire on the battery to the charging port. Is that correct.

[@Zen-mp9fd]

Lol, love your riding and reviewing, awesome how you multitask...

[@EJSVARZ]

will you be selling this bikes?

[@wheelerdealer7098]

Epic, loved my hub drive until this vid 👍

[@lyrad1992]

What's the range on that bike?

[@ianhill20101]

I like the build, tempted to get a frey hunter fatbike and do simular waiting to see how it holds up, tap on back keep growing.

[@Teamotoring]

Nice job Andy. Have you ever considered a belt drive e mtb?

[@dtjiffy4223]

Do a Downhill fork!!! It would give the Sur Ron a run for its money!

[@dbmiller5881]

what a spectacular little ride you've got there Andy! I know you're not trying to extend the range or ride "economy mode" by any means, lol - but what would be your best guess on the range of this setup, either in miles or minutes is even better.. ? I'm also curious your opinion on how it would have worked configured as a 4p / 15s pack (same number of cells I believe?) regarding torque and range?

[@nodummysallowed]

the "powerband" like performance boost comes when your overgeared.

[@illz11226]

I've been trying to find the gloves you have on in this video..are they good for the cold..weather proof...? Please give me some info your thoughts and link

[@TheWebstaff]

The motor is cogging as you don't have phase position due to no hall sensors. FYI.

[@andykirby]

Yeah that’s right, the Phaserunner does a pretty good job considering.

[@andyhumphrey9351]

What was the top speed pal.

[@3dkiller]

absolutely lovely 4 kw bafang middrive :-) wooottttttt

[@gorillageeks5645]

Would be brilliant if you could make a AWD bafang mid drive with front hub drive bike

[@CafèZelberto]

Insane speeds on a bike through the countryside there, absolutely amazing, I’d love to get a decent mid drive motor on my surly disc trucker, just with Pedal assist to go on long tours

[@0776charlie]

I really want one, have been thinking about building a eVehicle for a while, this would be a good start I think... Looooks Soooooo much fun.

[@TK-OK]

Have you ridden a sur-ron ? Curious how they compare. Sur-Ron draws to much attention

[@tbonesenior6736]

Are you wearing heated gloves if so, Where did you get them RST?

[@andykirby]

Yeah they are RST heated gloves, they are great!

[@supernova1976]

making me fall in love with this beast :) . what sort of voltage drop you where getting with other packs? what is the usual in 48v vs 60v vs 72v? finally got myself a 48v 1800w dual motor scooter lol it is alot of fun , i prefer a bike though.

[@jimmystardawg1506]

If i was to buy one on the conversion kits of that cloudsto site what would be the best bike to fit it to, im a big guy so would need to be a decent bike to take my weight and max budget of 1300

[@andykirby]

Maybe a Trek Marlin 5 like I used in my video. You could go for the XL frame.

[@bpowell2502]

Does anyone else see the SHADOW PERSON? Watch around 5:48 upper right hand corner... Is that just his shadow?

[@zenzen9131]

It looks insane fun :)

[@fordism.01]

Bloody hell it shifts some

[@user-jt1jv8vl9r]

Where are you cycling?

[@chargeriderepeat7024]

Whats the torque at 4KW? Its 160nm at 1KW..hard to tell I guess without a rolling road. That might be a good video..get it tested.

[@Malty971n]

hello could you make a video top speed with your renault twizy

[@HighVoltageKits]

You had some rain there hey! Great riding!

[@danielgreen4213]

lovely uk weather wouldn't change it for the world lol

[@HighVoltageKits]

daniel green I lived in Coventry most my life.... The dull drizzle of an English winter! Although I was reading about big floods this AM

[@danielgreen4213]

@@HighVoltageKits yes I did guess you were from the UK from your videos on your channel I'm also a subscriber on your channel as well as Andy's. Must be a bit of a different life style where you are now.

[@HighVoltageKits]

daniel green Thanks for the sub, means alot. I love Andy's channel. Learn loads from him. Some things are different in Canada for sure. But less than you might think. Lots of Brits move here especially historically. I miss a good old pulled pint tho. Fish and chips and curry are poorer. But the space to breathe and go riding make up for it. Cheers

[@danielgreen4213]

@@HighVoltageKits yes indeed between you Andy and vortex I have learnt a hell of a lot. Ah that's where you are in Canada looks fantastic i would like to visit Canada one day. Ha ha indeed I have come back from the coast today after some lovely chips and a hot dount was needed after the cold e bike ride down there. Yes uk has some fantastic historical history but so has Canada. Cheers

[@206robert206]

What do I have to do to be your neighbour? Would love to have more people like you and I around me 🥰. I'm running a huge rear 48v 1500w 26" which just drains my 20ah battery like nothing. But the power is absurd I've hit 48mph going down a slight downhill.

[@xpndblhero5170]

I have a few questions about batteries so could you help me out... It's too much to type here and I know that you are the person to talk to.

[@ollierichards6508]

Good to see its not being used on actual mountain bike trails

[@FlashTechEngineering]

Hey mate your a crazy freak 😜, what's your gears sprockets you running..would you consider building and selling those battery packs?? Cheers David 👍 loving your vids

[@chriskros8858]

My e bike has 250 W and it is so powerful that producer had to restrict it to 25 kph.😆

[@paulstir]

Coupon code Andy 👍

[@jamiehammond7401]

Amazing.

[@wernerbecker4137]

Love it 😘😀❤

[@soulfuricacid2699]

any chance in the future that we could see an actual USED motor strip down...i'd be impressed to see just how much damage they can take as ...lets be fair...yours are PROPER tests andy...and further out of interest...what is the ACTUAL overall weight of the bike inc batteries and accessories...and where the TRUE COG (centre of gravity) is with regards this particular build...love these vids pal...keeps your eyes open online for www.cycletek.co.uk launching early 2020...coming soon...thanks for the great videos and advice :)...cant wait to watch you drifting it on the ice in the coming months...be careful!

[@seanenduro5940]

Brilliant would love the money and ability to build this!

[@a-aron2276]

I had the same issue, i just spread the cost over a long period and learnt as i went along, I'd say go for it, anyone can do this if you set your mind to it🙂

[@racerx7413]

You made one bad ass bike I wish I you could build one for me lol👍👍

[@eddycurrent413]

just shut up for a second and give it all the beans

[@amerem93]

Are those heated gloves?

[@christopherroberts22]

LOLZ .. As if you switched it down to 250w on the road ! :) Wink wink nudge nudge officer ! ....

[@birdman4274]

Andy, did you do much Peddling 😆

[@TheWebstaff]

Water in your motor = rust behind the magnets in a lot of motors and then they fall off and get ground up. Look at Doctorbass's video on spraying the internals in spraylon if you think you'll get any water ingress. kzbin.info/www/bejne/Z4bQcmiuot-aqa8

[@poketfull]

how is that bike road legal?

[@girlsdrinkfeck]

It's not a road bike so who cares

[@poketfull]

girlsdrinkfeck it was being driven on the road? Why the aggression?

[@girlsdrinkfeck]

@@poketfull no aggression. And no police on that, road

[@poketfull]

girlsdrinkfeck because their were no police dosnt make it legal to ride on the road. It was a genuine question as I have a similar bike and don’t put it onto the road.

[@girlsdrinkfeck]

@@poketfull how is he gonna get to dirt tracks otherwise. Also he said he is only using 250 watt's on the road haha

[@hokiturmix]

I do not want to ruin 604 GOA like

[@ericmuller6582]

♡

[@bodeydestefanis6343]

Can you do a video on how to install a dc to dc converter

[@triciamcintyre4947]

Would the coppers not take the bike of you if you were on the public roads because of the power? 🚴

[@DoctorJ3kyll]

Power is not the main problem, it's a unregistered, untaxed and probably uninsured motor vehicle with no number plate or indicators and a dazzling headlight. It's also illegal to ride it on a cycle path. Watch out Andy, it's only a matter of time before the police start to clamp down on this. When I was 16 I got 4 penalty points for free wheeling my TY 50 across a road with the engine off, I didn't even have a license at the time. :-(

[@wheelerdealer7098]

It's a grey area found they turn a blind eye if you're sensible

[@paulollerhead941]

The law does need changing. I’d happily pay tax and insurance for mine, but not as a moped. It weighs 24kg and is packing all of 1.25 horse power. There needs to be a lower classification for +250w to 10000w ebikes in my opinion

[@DoctorJ3kyll]

Actually just thought, you wouldn't need to pay tax under the current system, its emission free. But I do think we need another class of ebike, something in between what is legal and mopeds, but I would want it so you could still use cycle paths.

[@paulollerhead941]

Agree 100%

[@dreadknot2238]

i want to race this guy i would lay the smoke on him 👍

[@Jayt750]

Stop chatting bollocks

[@bodeydestefanis6343]

I just subcribed to your channel love your videos i just bought me a 12000w electric enduro from leili vehicle parts on Alibaba .Com

[@Mike-fm3km]

i dont understand why you cant say how fast youre going in ANY of your videos wtf

[@troyd-motorsport9933]

Meh, i guess by your attire you ride a motorbike? Why are you scared of a ebike? My old stealth was fine through dirt n mud.

[@martinpolach6171]

Why are you calling this thing a e-bike ...it’s a motorbike ...they have been around over 100 yrs

[@andykirby]

Have you been around for over 100 years? You sound stuck in the past 😅