Cheers guys, i'm really looking forward to this build. I wish i could start it sooner but I leave for a 10 day trip to Bali on Saturday so i've had to save my pennys up for the trip instead of important stuff like bulding ebikes...
Kepler wrote:This will be an interesting build for sure and a great comparison to your crank driven stuff. Jester might even like this frock setup
May I suggest you go with the 18fet if you plan on 5kW peaks. Even beefed up, I think you will be pushing the friendship with the 12 fet.
I just wish i could run the same power through the Cyclone setup for a real direct comparison but alas we know how that'd end... in smoke or broken planet gears!
Haha, i think Kim will disown me and tell me to frock off when he see's this thread!
Cool I was leaning towards an 18fet, just to be on the safe side
etard wrote:WATCH OUT welding those Aluminum frames, you MUST heat treat or you WILL CERTAINLY DIE!!!!!!!
LMAO! The end is nigh!!!
etard wrote:I stumbled into the Intense factory not far from my home one day, and have always wanted one, didn't know they sold those to Aussies though. Should be a killer build, keep us posted Paul.
Cheers Etard, what was the factory like? Yeah i've always wanted one too and a San Andreas - one day
Some Aussie must have smuggled it into the country, illegaly by boat perhaps...
etard wrote:I can't for the life of me, figure out why you wouldn't want to spend $10,000 on a Stealth Ebike, I mean, to go through all this trouble to save $7000 you must be in dire straights!
Lol, considering the comments below, i aint touching that one!!!
Justtoby wrote:Your quip doesn't add up.....that bike must be 3000 dollars worth or more, decent batteries will be a few thousand (especially if you went lifepo for ease and safety) then the hub motor 1000, controller, twist throttle, and then you are left with a bike that has spring rates too low for the weight, inferior brakes (I suspect) and no suntour crank, jus noisy rear gears. It wouldn't be warrantied either.
They are disgustingly expensive brand new, hence why i bought a 2nd hand frame
I paid $500AUD for the frame locally, that included the titanium spring on a dead shock, Shimano Saint DH cranks, an E-13 chain device and a recent suspension bearing replacement, not bad hey!
Bearing in mind the guy was atleast 25kg heavier than i (67kg), i'd say the rear Ti spring will be fine for my total bike and body weight. If not, a little extra sag out of 229mm travel won't be a bad thing.
On cost, some of the parts i already have - wheels minus rear hub and spokes, Bomber forks, Ti spring, DHX5.0 shock, 203mm rotors, seat, seatpost, cranks, chain device, sunline stem and wattmeter so that takes care of a fair chunk of the cost. Of the major parts yet to buy the costs are roughly: Nano-Tech 20s 15ah lipo - $700, Ht3525 inc spokes & freight (i will build wheel) $550, 18fet - $350?, brakes - $360... All up i'd say it'll cost around $4500AUD including the parts i already have and have paid for previously. I buy carefully and manage to find a previous year's model alot cheaper than the current year's offering where possible.
As for brakes, i'd go Shimano Saint with 203mm rotors over Gatorbrake any day considering the reviews i've read. I had the old Shimano XT 4 pot brakes and they were brutal, the Saints should be similar, plus pads and spares are far easier to find.
The Suntour gearbox i'm glad to do without, if it brakes as Dlogics and Dave.A's have, you either need major skills to fix yourself (and hope you don't need parts plus you void its warranty if you open it up) or send it somewhere to be fixed meaning a delay before you can use the bike again.
If my derailiur plays up, i can fix it easily myself or stop in at my local bike shop on the way home, buy another and be back riding in half an hr
Bearing in mind i pedal alot to help extend range and performance, the Fighter's limited 2spd setup would frustrate me! I'm fussy with cadence speeds...
Re the warranty, the moment you change a Stealth to Lipo or modify it electrically i'd assume you'd wave goodbye to the warrenty anyway wouldn't you?
etard wrote:Even if you spent an extra $1000 Paul could build 2 ebikes for the price of a Stealth.
Spot on, it'll come in about half the price of a Bomber with most
of the performane.
voicecoils wrote:Nice frame choice, ambitious weight goal!
For weight reference, my HT motor with 13/14ga spokes, Sun MTX 39 rim, Hookworm 26x2.5", tube and Tuffy Lite liner weigh 10.24 kg
Yeah maybe too ambitious but you've gotta aim low with some things sometimes! If it comes in around 32 - 33kgs, i'd be a happy camper.
What brand of spokes are you using? Are you happy with their strength / reliability?
dogman wrote:Looks like a sweet ride coming up. Bolt on pinch dropouts for the win. Might consider carrying just 10 ah of battery, but have another 10 ah easily swappable.
Yep, ya gotta clamp those suckers in tight. 10ah would be easier and lighter to carry but i'd like a little extra range. I contemplated 20ah but the frame size would blow out too much!
bigmoose wrote:Just wanted to ensure this piece of advice got caught. Welding on aluminum removes all of the heat treatment in the heat affected zone even if done with TIG. For example 6061T6 aluminum alloy has a yield of 40000 psi and a elongation at break of 12%. Dead soft it becomes 6061T0 with a yield of 8000 psi and an elongation at break of 25 to 30%
I have heard of DIY heat treatments, but best bet to a professional that can put the completed frame in his heat treatment furnace.
Cheers Bigmoose, welding ally sure does reduce its strength in the heat affected zone. I've put my last frame to the test after welding it and its come through fine so far so hopefully that luck will continue with this frame
Oh crap i've rambled on, long post, sorry guys!