New electric mountain bike frame by Phasor Cycles

[Deutch420]

I have seen quite a few u tube videos where guys are using high wattage and getting 58 to 60 MPH something but the bomber is getting 48-50 MPH at half the wattage some of these guys are using which makes me think stealth is lowballing the power specs

It's pointless comparing the power or speed to a stealth bomber. This is just a bare frame that looks like a bomber. Sure, compare the weight and handling but as far as power and speed goes it may as well be a shopping trolly or pair of roller skates.

Power and speed comes from the battery, controller and the type of motor (size and winding) - so bolt on what ever suits your needs.

agreed.

Hyena...I do not think you understood my post regarding the stealth....it had NOTHING do do with the phasor frame....what I am saying is guys are using comparable motors to the stealth and running crazy voltages and amps up to 10,500 watts buy NOT getting much more speed...which makes me think these motors designed for bicycle type frames can only produce so much before they start converting the excess energy to heat....looks like even with the biggest BICYCLE hub motors,efficiency starts to drop off a cliff over 5000-6000 volts as regards wattage to speed from what I have seen so far....I think 4500-5000 watts with a hubzilla or stealth type motor and 100 volts and a great controller and 45-55 mph and 75-85 pounds and 10-20 amp hours is about as good as it gets for now unless you want a one mile dragster.....or a heavier motorcycle type bike...this is all based on what I see on the internet...I am waiting for my first bike

Korpin, keep in mind watts = amps x volts. Just because you know the watts, doesnt mean you know how they reached that number. 4000watts could be 100v 40amps, 72v 55amps, or even 48v 80amps. All of which would result in a drastically different top speed, wile maintaining the same watts. for the most part, your top speed is determined by volts. Amps is acceleration. So when you see a 100v 40amp (4000watt) bike and a 100v100amp (10,000watt) bike compaired; even though they will have close to the same top speed, the 10,000watt bike would destroy the 4,000watt bike in a race from 0-50mph . Similarly, if you had a 100v 50amp bike vs an identical 50v 100amp bike, the 100v50amp bike would have a much higher top speed, even though they are both 5Kw. Yes you are right, in that eventually you will hit a point of diminishing returns, where it will just create heat. This point will depend on the hub. Smaller hubs like the Magic pie, GM, BMC's etc... will not be happy over 4000watts (+-). Where as the larger hubs like the CroMotor, 540x 530x can take upwards of 10,000watts before issues. (This is provided you dont want to run full throttle for long periods of time, otherwise either of these hubs will burn up eventually. also, these figures are based off of a 100v setup. less volts = more amps = more heat.) . On my 5304 and 5403 i notice a HUGE difference between 100amps and 40amps. I tried to remember it with Voltage = Velocity. Amps = Acceleration. Hope this helps clear up your confusion.

 

[Kepler]

Stock Bomber runs a 5402 motor with a 65A limit and around 75V under load so we talking closer to 5000W. On a 24" rim, the bike does 50mph without a problem but it does need to wind out.

My Bomber has a 5405 motor on 125V hot off the charger, about 115V under hard load and 100A current limit. Also good for around 50mph but gets there like a train

Love the Phasor by the way. 8)

[youtube]9R7Jt1dGpCY[/youtube]

 

[korpin]

well from all these posts,I think around 100 volts and 50 amps and 15 ah will give me what I want in speed,range,and weight using some of the newer lightweight batteries that I have heard are almost up to the recharge cycles of the heavier batteries....I figure I am giving up the gearbox and 2" of rear travel for somewhere around 30 pounds less weight and maybe with good componets a little more range than stealth...would like buy a bomber and compare it side by side to my phasor....maybe if my stock portfolio takes off I will buy a bomber too.....these bikes ain't cheap!

 

[korpin]

speaking of gearboxes,honda came out with a fantastic bicycle frame/gearbox combination but mysteriously detroyed most of them (photo) I saw one frame for sale but the gearbox was absent

 

[Chalo]

speaking of gearboxes,honda came out with a fantastic bicycle frame/gearbox combination but mysteriously detroyed most of them (photo) I saw one frame for sale but the gearbox was absent

Here are some existing specimens of bottom bracket transmissions.

SR Suntour makes one.

Greyborg built a bike with it.

But it looks like you don't have to.

Chalo

 

[Rodney64]

With my phasor set up I'm going with a 24s lipo setup 100.8 volt hot of charge and a 45 amp controller.

 

[korpin]

that greyborg custom is sweet......does anybody offer motors with liquid cooling?....heat seems to be the gremlin in these high powered bikes....

 

[nicobie]

Anyone know if they are accepting deposits yet?

 

[Deutch420]

Anyone know if they are accepting deposits yet?

They have been taking deposits for over 6 months now. There are at least 8 of them accounted for already. Mine is about to hit the powder coater!!

 

[nicobie]

Anyone know if they are accepting deposits yet?

They have been taking deposits for over 6 months now. There are at least 8 of them accounted for already. Mine is about to hit the powder coater!!

AMAZING!

I have tried to get in touch with them for at least 4 months now.

Left another (hopefully not futile) email 4 hours ago.

It seem's that a simple reply from them might get Phasor another $ grand from me into their bank. I think that maybe this joint can't keep up with their orders. No problem to just order a Grayborg or for that matter, a Stealth fighter, might be the same price as building out one of Phasor's frames.

I am tired of waiting.

Nick

I'm thinking it might be easier (but maybe not better :wink: ) to just make it my damn frame.

 

[SweKen]

Got a reply from them with in like 24h.
If there was 8 accounted for, then theres 9 now.
Now i just need to sell my motorcycle so that i can afford everything else for my ebike build, once i know what to buy, and where to buy it, im a noob at this, at this stage. :wink:

 

[ohzee]

welcome SweKen. before long we should see some builds from these you have showed up at a good time.

 

[SweKen]

welcome SweKen. before long we should see some builds from these you have showed up at a good time.

I really hope so, because i have a really hard time coming up with what motor to use. Im an "old" dirtbike rider so i wont settle with commuter style kind of performance, but then again i really like the freewheeling of the geard motors, but they probably wont be as reliable as one would hope for. Im constantly torn between motor drag and performance with a high voltage setting vs freewheeling with good torque at much lower voltage setting but maybe not that reliable when pushed with hard abuse. The range is there in most setups since the frame allow massive battery packs, because i would hate to run out of juice. B-)

 

[Dudeofdoom]

Well....

Heres one I made earlier....

(and I couldn't decide on the colour so went with the green of the prototype)

DoD

 

[Deutch420]

Well....

Heres one I made earlier....

(and I couldn't decide on the colour so went with the green of the prototype)

DoD

Niiice!!! I can't wait for mine!!

 

[korpin]

seems like most people are going for the Fox DOWNHILL SHOCK WITH COIL SPRING ON SWINGARM....HPC recommended I go with the new rock shoxx vivid air and the world cup boxxer forks

 

[Rodney64]

Korpin, Did you get one of the white frames

 

[SweKen]

I was in contact with phasor yesterday about my dropout width since i would like them to be 150mm to accommodate a CroMotor. They strongly adviced me to not go for that option, they have test monted that motor and the conclusion was that the fit is really tight and the clearance for the disk brake was a pita. The said the would charge me extra Dineros if i choose to go wide anyway hence they dont have a jig for 150mm, only std 135mm and there would be extra work. They also talked about the heavy weight of a cromotor and in a rim it would be somewhere around 15kg and be an awful lot of kilos hanging in the back.

So, im back to square one on this build, dont know what to run in this frame unless i promptly decide for the wide dropouts.Im not in to going 80mph, im more for acceleration and tourque, maybe putting a carriage on the back and pull my kids around. With the cromotor i was aiming for 72v and 100amps, and now when i aint going down that road i need somw advice in what to get in the 135mm dropouts.

 

[Rodney64]

I was in contact with phasor yesterday about my dropout width since i would like them to be 150mm to accommodate a CroMotor. They strongly adviced me to not go for that option, they have test monted that motor and the conclusion was that the fit is really tight and the clearance for the disk brake was a pita. The said the would charge me extra Dineros if i choose to go wide anyway hence they dont have a jig for 150mm, only std 135mm and there would be extra work. They also talked about the heavy weight of a cromotor and in a rim it would be somewhere around 15kg and be an awful lot of kilos hanging in the back.

So, im back to square one on this build, dont know what to run in this frame unless i promptly decide for the wide dropouts.Im not in to going 80mph, im more for acceleration and tourque, maybe putting a carriage on the back and pull my kids around. With the cromotor i was aiming for 72v and 100amps, and now when i aint going down that road i need somw advice in what to get in the 135mm dropouts.

I went the H series motor. A Mac motor from cellman is another option.

I want to drill out my motor covers. Can anyone give me any advice for this. The motor is a H3580.

 

[jonescg]

If your controller is limited to 45 A you won't have to worry about that, Rodney. Even if it was limited to 100 A you would still be in no real danger of heating stuff up. If 100 A was your continuous usage, well the battery will be flat in 8 minutes, so how much heat can you possibly generate?

 

[korpin]

Korpin, Did you get one of the white frames

yes I did.... looks ok but the tube for the seat post was caved in near the bottom when it arrived

 

[SweKen]

Makes me nervous, im on the other side of the planet from where they make those frames, it would be heartbraking if it was damagednupon arrival. :?

 

[korpin]

Anyone know if they are accepting deposits yet?

AMAZING!

I have tried to get in touch with them for at least 4 months now.

Left another (hopefully not futile) email 4 hours ago.

It seem's that a simple reply from them might get Phasor another $ grand from me into their bank. I think that maybe this joint can't keep up with their orders. No problem to just order a Grayborg or for that matter, a Stealth fighter, might be the same price as building out one of Phasor's frames.

I am tired of waiting.

Nick

I'm thinking it might be easier (but maybe not better :wink: ) to just make it my damn frame.

Well the bomber may be the best bet....I ordered a Phasor thru HPC and originally they said it could be built for 8000.00,have the same power and battery life as the bomber with the same travel and be 30 pounds less....however things have changed:

1)the rear travel on my phasor will now probably be somewhere around 220-230 travel INSTEAD of the bombers 250 (not huge deal)

2)the batteries will be 1 kwh instead of the bombers 1.5 wwh unless I add another 13 pound pack on to get to 2 kwh at another 1000.00 (because of my 100 volt set up and the way HPC does their battery packs)

3)the price is creeping up it seems more like 9000.00 now not really sure yet

4)they originally said they would put regenerative breaking on but that seems to no longer be the case...

on he positive side:

1)the phasor frame holds a shitoad of batteries!

2)I can probably still get 2kwh of batteries and 200mm front travel and 220 rear travel for around 90 pounds not sure yet its like have the power of the bomber and more range but at a weight closer to the fighter..

 

[ohzee]

I was in contact with phasor yesterday about my dropout width since i would like them to be 150mm to accommodate a CroMotor. They strongly adviced me to not go for that option, they have test monted that motor and the conclusion was that the fit is really tight and the clearance for the disk brake was a pita. The said the would charge me extra Dineros if i choose to go wide anyway hence they dont have a jig for 150mm, only std 135mm and there would be extra work. They also talked about the heavy weight of a cromotor and in a rim it would be somewhere around 15kg and be an awful lot of kilos hanging in the back.

So, im back to square one on this build, dont know what to run in this frame unless i promptly decide for the wide dropouts.Im not in to going 80mph, im more for acceleration and tourque, maybe putting a carriage on the back and pull my kids around. With the cromotor i was aiming for 72v and 100amps, and now when i aint going down that road i need somw advice in what to get in the 135mm dropouts.

SweKen - My advice to you is to go for a HT3525. I think that's what I am going to do since my 5404 will not fit on this bike.

I am literally in love with my HT. It's taken everything I have thrown at it and still moves me around plenty fast. 100v 80 amps with the covers drilled.
Please dont think you can run a mac at those levels as I have toasted 2 so far trying or at least 1 very well done. The HT fits nice also and is a lot lighter.
You can even get one from methods in the US for 300 +5$ shipping I believe.

When I get back from vacation I think I am going to order another HT and just use that on my phasor.

 

[ohzee]

Makes me nervous, im on the other side of the planet from where they make those frames, it would be heartbraking if it was damagednupon arrival. :?

yea hopefully that keep that in mind when shipping the next batch of bikes and come up with a better way to package.