Hyena's e-bike builds (now with HD video)

Subscribed to this thread mate. Fellow Sydneysider. I'm in the east but girlfriend lives in the Shire and am often down that way. Have been thinking about a RAPTOR myself and am very interested in your build. Riding small-power commuter bikes at the moment.

New build looking great so far.
 
Hyena said:
They don't make a DNM direct mount stem and CNCing one would be a costly and ultimately poor value exercise. It would look slick though and I could design something that integrated headlights, controls, CA mounts etc. Damn it, now I'm talking myself back into it... SamD I have a 3d printer project for you! :lol:
Actually, I have a couple of CNC billet Direct Stems coming direct from China ATM. Let's talk.

While we are onto integration "up your front end", what about two of these in seriesup front like the madass config? A solid ebike frame would make a nice heatsink :p
http://secure.oatleyelectronics.com//product_info.php?cPath=73&products_id=1029
 
Funny you should mentioned the madass style headlights, I'm impatient awaiting the delivery of one of these. More to follow if they're good.

led projector.jpg

They're "only" 30w but given how bright my 18w ones 2 or probably even just 1 of these should be enough to sear the retinas out of any animals (human or otherwise) I encounter at night.
I nearly pulled the trigger on one of those fancy angel eye HID projectors but figured the bouncing around would be as good for the life of the HID globes. I might still buy the 20,000 volt ballast though and wire it to the frame as a security system :twisted:
 
That Raptor's looking like an awesome machine, Hyena!

Are you planning on coming up for the Hunter EV Festival? It would be great to see it out on the kart track.
 
Thanks! I just had another care package of goodies arrive tonight so I'm going down now to do some more work on it!

I'd love to get up there this year mate, every year it seems I have something on that stops me getting there! I'd better pull my finger out though, it's only ~2 weeks away isnt it ?
I'd actually love to enter it in the 1500 whr motorcycle race category but I'm not sure if they'll accept it with lipo ? I know for the kids stuff they dont but I think I read a while back they may accept it in the other categories pending permission or something. I suspect if it's in an enclosed metal box like this (ala raptor frame) and running a BMS or similar they'd accept it.
You've entered the last few years haven't you ? Do you know someone I could speak to about it ? edit: just spent some time reading the site, it seems lipo is out all together so entering the raptor in the 1500 category is out. Crap. I dunno if that excludes me from bring it up and taking it for a few spins around the track in the open session as well ? It'll be disappointing if it does.

6 months ago I actually hoped to take the converted madass up and toss it around but that project kinda stalled with everything else getting in the way. Mind you it was going to be lipo too so they still wouldn't have allowed it :roll:
 
There's a clause about Lipo may be allowed if you submit a safety management plan acceptable to them. I'll be running Lipo in my 1500 class machine, so I need to sort this for myself!

Main issues I can think of including would be physical protection on bike, off-site charging prior to race (bring along fully charged) and cell monitoring during discharge (Cell-logs).
Leave it with me, I'll have a chat to them, will let you know via pm.

Previously they have let Lipo machines on the track, e.g. Ripperton race motorbike last year.

One of the organising guys is doing a Madass conversion at the moment, should be ready for the festival. :D
 
Cool, if you can ask those in the known that'd be great. I see from the rules I'd also need an external battery isolated and functioning brake lights and indicators and what not. It's not something I was planning to have on this bike but I guess I can rig something up for the day if I get everything else otherwise sorted.

Do you know how many are in the 1500 category ? The raptor wouldn't be a serious contender up against proper motos but it'd be fun to throw it around the track for a few laps.
 
There were three entries last year, an Aprilia RS125-based moto (winner!), a Stealth Bomber (2nd) and my 3kW RC machine (3rd) so obviously a big spread in speed there.

This year, I'm guessing maybe 5 entries but I can find out, so the more the merrier!!! The schools divisions are much more crowded with 20 or so on the track together.

My best tip is to run some grippy road tyres.
 
Cool, good info. Sounds like the raptor wouldn't be tooo out of place then. I thought it might look a bit ambitious/silly showing up with the motos but it sounds like it'd be OK. Is your machine bicycle based or motorcycle based ?
I've got some crazy bobs here but I'm not sure how comfortable I'd be really pushing those around a track. Nor have I any experience full stop on a track. I suspect I'd end up either riding to conservatively, else find out the hard way where the grip runs out :lol:
What sort of speeds are you averaging around the track and what sort of changes in speed are there ? Eg do you get up to 80ks on the straight and then rapidly hit the brakes for a hair pin @ ~20km/hr then back on the power again ? Or is it all fairly flowing ? I'm not familiar with the track obviously so I dont know what to expect really.

It'd be a good way to show off the versatility of the raptor though, offroad mountain bike one minute, the next minute it has slick tyres, moto seat, the foot pegs fold down and you're chasing down motorbikes :)

edit: also do you know how they judge the 1500wh capacity ? Is it just nominal voltage x ah ? I'm just building a 21S 20ah lipo pack which is a shade over 1500 at ~1550 but I could put a tap out on it at 20S to meet the criteria and come in at 1480whr
 
Jay, just realized you have a DNM fork on the Front. I am really curious how you like that as well as the whole bike set up.
 
Architectonic said:
I'm feeling jealous already! :D

Rix said:
Jay, just realized you have a DNM fork on the Front. I am really curious how you like that as well as the whole bike set up.

I guess we'll find out when the bike is sorted!

Yep. I am told by a guy in Perth that this fork Jay is running is available for 400 bucks. This could be the best bang for the buck fork there is on planet earth. The DNM shock on my Fighter and Bomber were pretty good. Thats why I am so curious about this fork.

Rick
 
Yep that's where I got it from Kepler. As Rix said, amazing value for that price on special (I was going to buy them previously for $500) I think I'd look to the usual mountain bike suspects for up around the retail price of $800 (or over $1200 if you believe what some other people advertise as the RRP!) but it'd have to be pretty awful to pass up at this price. I spoke to a few other people who are running this fork in the US and they all loved it and said it gave a nice, plush ride. I suspect you'd have to be a fairly expert mountain bike rider doing difficult, technical stuff to pick faults in them. I reckon they'll be more than adequate for the average sort of person who buys a heavy ebike and just wants to bash around the trails.

My lipo shipped out from hobbyking this morning. That means this friday night is lipo pack building night :)
I just dropped another $150 with CRC for assorted bits and bobs so that'll be a week off arriving but hopefully by next weekend I'll have it fully assembled and pretty much in it's final form. I'm trying to get my hands on some of the new magura MT5 quad piston brakes with ebrake cut out switches but if I dont have any luck shortly I'll go with the shimano zee.
 
I was looking at these suckers back in April - http://endless-sphere.com/forums/viewtopic.php?f=3&t=59216 - 4th post down. Didn't get much feedback on them...and as they didn't fit my colour scheme (bike tart I know) I discounted them. The colour will go perfectly with your Raptor 140 frame though - spot on. As with others, I will be very interested to see in real live test how they actually perform.

FWIW, Jenson have some good deals for Fox forks at the moment - Fox 40 Rs for USD699 - http://www.jensonusa.com/Fox-40-R-26-Fork-2014.
 
That's a good price on the fox 40s! If I didn't already have the the DNMs I'd be seriously tempted by those.
Speaking of good gear, I've been speaking with Magura and am in the process of getting some of the newly released MT5 quad piston brakes. They look pretty nice in general but best of all they have an inline hydraulic pressure switch for activating regen. Nice! Price is TBA but I'm looking to buy a few sets to get em a bit less than the ~$220 AUD retail price. PM me if you want a set, the rest will go up in the for sale section when they're here. These are the main thing that's holding me up now from being ready to roll. Even if I spent

Oh, did I mention it's Christmas in July and Santa has just been :)
16 bricks of lipo, pedals, new moto style bars, some red backed grips and bling red stem cap to match the other red highlights on the bike and a new shorter stem. CRC only had them in anodized blue or green and I wasn't going to wait around for them to come back into stock so went with the blue and will spray paint them black.

First things first, time to get cracking on building the battery. I remember when I used to go out on Friday and Saturday nights and not work away to all hours of the night like a mad bomb maker :lol:

goodies.jpg
 
Hyena said:
Oh, did I mention it's Christmas in July and Santa has just been :)

Well...someone been more nice than naughty eh... :D

Love the moto bars...and those brakes sound like a cracking idea, if I hadn't already invested in some shimano saints I'd be all over them!

Keep us posted on progress my good man!
 
Ah bummer about the brakes. Never mind, you'll like the saints, I have them on my commuter and they're great. I had a roadie ask me recently why I have some ridiculously oversized brakes (I'm also running 9" rotors) on a road ridden bike. I informed him what he should already know: trees only jump out in front of you sometimes, cars do it ALL the time :)
Once I do some testing with these Magura's I'll post some feedback. They do list the pressure switch as a separate/spare part so you may be able to use it on other brakes too which could be nice.

Oh yeah, I also cut down my sabvoton controller to fit inside the frame. Stock it comes with a mounting flange either side that's about 10mm wide
$_35.JPG


This was a tad too wide to fit inside the frame so I cut those pieces off and ground it down smooth. It now slides inside the frame nicely but I'll just have to come up with another way of holding it in place. This is roughly where it'll sit and that's the lipo dummy fitted. That's a 21S20ah pack so just over 1550 whr. As you can see there's heaps of room space for other assorted frame internals like DC converters and other bits and bobs. I will also be fitting a motorcycle alarm on this, USB jack for charging the phone or gopro when out and and about and possibly even an onboard charger for quick and dirty opportunistic bulk charging (paging heathyoung :) )

21S-20ah-sabvoton.jpg

Also here's the cut down sabby vs a standard 24 fet infineon. From accounts of others who've used these they barely get warm so I'll probably be fine with it inside the frame but I'll keep an eye on temps and fit a fan on a thermostat if needs be.

sabvoton-24fet.jpg
 
Hi Jay. Sweet looking Raptor. You built me a kit around 18 months ago and it's going strong. No one has passed my 200w hey neap special Will this new bike be a Bomber beater ? Can you charge the Lipos in the frame or do we need a lipo bunker ? As soon as you make an easy to manage Bomber beater I'm signing up.
 
Hey mate,
Glad your still liking the kit and it's going strong. It's amazing how far 200w can go with the right tuning hey ? It's all about harnessing the carbon emissions from the motor and reversing the polarity of the neutron flow :lol:
I'm using lipo in this one of mine mainly because I'm keen to get it rolling. With a completely enclosed frame the bike IS a lipo bunker. That said, in future any kits I put together will be using big 18650 packs that have a BMS and are plug and play friendly.

As for beating a bomber, do you even need to ask :twisted:
My old modded fighter had double bomber power and the raptor has a bigger, higher voltage pack, bigger controller and bigger motor. So, yeah :p

Everyone wants to equal or beat the bomber, so that's praise for stealth I guess for setting the benchmark. Really though just throwing bulk power into a motor and quoting peak wattage is not all there is in comparing something to a bomber. I remember the first time I rode a bomber thinking "is that it? The power is no better than the bike I made in my garage with $1000 worth of parts strapped to it" But obviously that's not the whole story. Yeah the bomber is powerful but it's a lot more than just that, it's a turnkey, well sorted ebike that a total noob can walk in and buy and 10 minutes later be zooming around the trails. A number of members here own stealth bikes, and they're held in high esteem but the thing that stops most people here who are more DIY orientated from making their own version or something similar is the frame. Infact I can think of a few people who've bought stealths only to fit their own batteries, suspension, different wheels and tyres and/or different motors. If you're going to do all that it's kind of a waste paying the premium for a turn key bike like a stealth so that's where the raptor comes in. You can spend as much or as little as you like and create your ideal custom ebike exactly the way you want it. If you spend the same amount of money a fighter would cost on a raptor you'll have something that is better specced in every way than the bomber (except the gearbox, but who needs that when you're running bulk power :p ) BUT, it's a DIY project, it's not a commercial product you can just walk out and buy. You need to know what you're doing and if you bugger it up then it's on you to fix. Well not really, that's where I come in :) Shortly I'll have an assortment of kits and spec options that take all the hard work out of it for those who wouldn't know where to start or who say "just recommend what you think is the best". I've already had 2 requests to assemble a complete total bike kit the person can just unbox and start putting together. Like a big, very cool lego toy :)
Once I get my own build finished and assess all the issues and pitfalls others will run into I'll start work on the others.
As an aside WA is dominating the interest in Raptors! There's already 3 headed that way!
 
Architectonic said:
Is that $220 for a set of two? Hmm, you know I'm in the market for some brakes. :lol:
For 2 ?! I dabble in working magic, not creating miracles :lol:
$220 is the retail price per end. I expect a discount but not that much. Hopefully around $300/set.
If you're on a budget you could look at just getting the MT5s up front and the cheaper MT2s on the rear. I've not used MT2s before but they're standard on the stealths so they can't be terrible.
Or my next recommendation would be shimano zee which can be had for around $140 per end (+$30-50 for rotors per end) They were my pick before I saw the new maguras.
 
Hyena said:
Architectonic said:
Is that $220 for a set of two? Hmm, you know I'm in the market for some brakes. :lol:
For 2 ?! I dabble in working magic, not creating miracles :lol:
$220 is the retail price per end. I expect a discount but not that much. Hopefully around $300/set.
If you're on a budget you could look at just getting the MT5s up front and the cheaper MT2s on the rear. I've not used MT2s before but they're standard on the stealths so they can't be terrible.
Or my next recommendation would be shimano zee which can be had for around $140 per end (+$30-50 for rotors per end) They were my pick before I saw the new maguras.

The MT2 are a great brake, I am surprised out how well they work, even when I get them hot, fade is minimal. For a rear brake, more than fine. Before I go to the MT5 on the front, I am going to try the MT2 with a 9" rotor. Maybe solve my fading problems. Keep in mind my Fighter is 80 pounds and I am 250 pounds, 265 with camel back and tools. That's 350 pounds or so combined rider/Fighter weight. With the steep crap I have been riding, that says a lot for MT2s.

Rick
 
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