Quark

Thanks MS, I'm using a shwalbe big apple on the rear 2.00 x 26 they are great tyres, loads of grip and puncture resistant, also good for the extra weight I'm now carrying.

[ATTACH]6368.vB[/ATTACH][ATTACH]6369.vB[/ATTACH] [ATTACH]6370.vB[/ATTACH][ATTACH]6371.vB[/ATTACH] Hi all, Well thanks for all the replies, my route to work is very open rolling country side with plenty of view of the road ahead, you are right about the stopping distances, you need to think ahead and start planning to stop way before you need to, I also find it helpful to assume every driver out there hasnt seen me and wants to try and knock me off my bike and then ride to avoid them, so far so good, its a trick I learned as a long serving motorcycle rider. Oh I use regen braking on the back, its stops me seriously fast but is way too agressive for most applications so I only use it when I need to. Anyway heres some pics of the bike. Q

Hi sorry wasn't aware of the standard being on the flat, I can definitely achieve 30mph on the flat maybe even 32/33 with a full charge and yes it was down hill that I hit 37mph, again I think with a full charge I could hit 40mph, problem is I can only pedal up to maybe 33 before I run out of gearing, this I also hope to sort with my improvement build. Once I upgrade my batteries who knows what I could achieve. Hope to record some video footage of my ride to work soon.

Ok photos to follow but specs for the moment are: Standard GT chucker MTB Crystalyte HS3540 rear hub motor 72v 100A capable Lyen controller 48v (58.4v) lifepo4 16s headway cells (In a rear motorcycle box for the moment) Cruise control, cycle analyst, twist throttle Max speed so far 37mph, 30mph on flat, 20mph general cruise speed to prolong battery life/range It makes for a very enjoyable little electric cruiser, increasing battery voltage will allow me to increase my cruising speed to around 30mph with a bit of luck.

Hi all, Just thought I would share my happiness at reaching my first 500 miles on my homebuilt electric bike, I have been commuting to work almost every day since finishing it and I don't plan to look back, in fact I'm already planning my next build which will include improvements such as full suspension and a lower C of G for my battery pack. I also intend to upgrade to 60v nominal. I'm really enjoying my 25 mile round trips to work and back, obviously the weather is making it more of a pleasure but riding in the rain hasn't put me off yet, winter might be a different story though! Thanks for the inspiration. Q

I'm also far too old to be a yob but the occasional wheelie wont hurt anyone! If it does turn out to be dangerous to ride then I will have to move to a new frame sooner than expected, but I've ridden some insane bucking bronco motorcycles in my time, so I can take a fair amount of instability before panic sets in lol

Wow I love it but for $20,000 id rather live with the extra weight!

It should come out with the reverse drill bit but worse case it will have to be drilled oversize and a either a thread insert kit used or tapped to the next size up. Maybe higher tensile strength bolts could be used with thread lock?

Yes it will be trial and error for the first build, I have a CA and a fully programmable controller so I will be able to tame the power to suit, plus I wont be able to use full power if I expect any kind of useable range from the limited battery capacity I can carry, your vision of me flipping over the back of the bike or constantly loosing the front end and crashing may well be a little over exaggerated! However we will see!

Hi thanks for the advice, I'm initially looking to run 48v 15ah, I'm not sure if I will get enough range from this but its a good place to start, I would love to run 72v 20ah eventually but I need a frame that can store the batteries much lower, this is why I'm toying with the idea of building my own bespoke frame designed to accommodate all the power I need.

lol, do we have punctuation police on here?

Although I agree with the above, I think that if Police officers, the so called trusted officers that uphold our laws decide they can behave in any manner they wish, because after all they ARE the law, then filming them and displaying it to the tax paying public and hopefully they're superiors, may not be a bad idea if it makes them think twice next time!

I cant wait to finish my build, I was also toying with the idea of selling my motorbike to fund a nice battery pack, rather than having to settle for what I can afford, but having not ridden an ebike yet I'm a little apprehensive. I might just slap a couple of SLA batteries on the back just to try it out!

Thanks Dubster, Maybe you should come back for a visit sometime, bring the bike!

Exactly what I was thinking because my controller is fully adjustable including the regen effectiveness and regen voltage. Paul

I agree, but if it gives me a little power and some braking effort then its worth using it if you have the option with your controller, if it extended my range by 50m id be happy lol

Size is correct if the website sizes are correct, the box does look big in the photos, there will be some room in there but not as much as the photo makes it look like, I still have alot of work to do, I have torque arms to make, I need to extend the motor phase and hall cables 500mm, bolt on the controller, cycle anylyst, cruise switch, regen button (not using a lever for this)and then run all cables and loom them in a tidy and hopefully waterproof manner, then all a matter of choosing and saving for the battery pack. Im looking forward to my first flight! lol

Yeah Im going to stick with the A5 to get to work, I think it will be safer than the B roads, the cardboard box you can see in the pics is the correct size for a 15ahr headway pack with BMS weight around 10kg, I intend to fix the controller to the front of the box then run the cables direct into the box, keeping all connections nice and dry in the box. If this build goes well and Im happy with the results I intend to get serious with the next one and build my own bespoke frame from aircraft grade aluminium not unlike the steath mountainbike concept.

[ATTACH]5225.vB[/ATTACH][ATTACH]5226.vB[/ATTACH][ATTACH]5227.vB[/ATTACH][ATTACH]5228.vB[/ATTACH]Well when done I will try it out measuring speed by gps, as I said whats it can do and what I let it do are 2 different things, I would run 72v 24s 2p if I had the room in my frame but I just dont unfortunately and at max speed pedalling may not be an option, I have hopefully posted some pics of the build so far.

Hi All, Thanks for the warm welcome, although Im loathed to mount the battery in the rear so high up, with the bike frame I have there isnt very much room in the triangle, I have done a few tests with 15kg in the top box and it does feel a little top heavy but not unmanageable, i may have to drop to 15ahr or even 10ahr if the weight is really an issue, I may give it a few more tries with different weights. The bike will be pure throttle with no need to pedal but I still intend to pedal to help keep fit, the motor and controller are both capable of much more than I intend to use, but with a basic setup drawing around 30 - 40A continuous with potential 80A bursts of power it is likely it will be capable of speeds up 30 - 40mph but because of range I will limit this power and speed using the programmable controller and cycle anylyst, I realise this has legal implications but I have decided to try my luck with the law as I dont agree with the limits for electric bikes anyway. I like the sound of these water bottle batteries, what kind of output are they capable of? I was thinking of going down the 15ahr lifepo4 headway cells route, as I can easy add to the pack when budget and frame size increase! Hi to wissy im in Llangefni and need to ride to RAF Valley! Just need to figure out how to post some pics now!

Hi all, Well after many years of wanting to do this, I have finally started my first electric bike project. I have decided to convert my existing mountain bike for my first build, and so far have managed to buy a crystalyte motor and an infineon controller, a rear rack and a motorcycle top box for battery storage, so the journey begins! My intention is to commute to work, some 24 miles of undulating roads with a few major hills, there and back in all weather with the exception of snow and ice so my biggest consideration and of course financial outlay will be my battery pack, Im looking at 48v 20ahr pack but cost here may be the restriction on the size of my pack. Im looking forward to picking brains here to help me on my way, Im an aircraft avionic/elec tech by trade so I do have a bit of a clue what Im doing but no experience at this as yet. Nice to meet you all. Paul