mountain biker
100 W
- Joined
- Sep 26, 2014
- Messages
- 244
first time ever to look up this electronic bicycle thing. it has caught my attention. I used to ride bicycles all the time in japan for transportation. was first experienced with a shimano gear shift system. believed it had 4 four gears.internal hub.... any way... I have looked at a bunch of sites, physics site and the seemingly limited suppliers in the us. seems like everyone just imports Chinese technology...which I am cool with.....I have called about 10 bike shops and most will not deal with any buy a Chinese motor and put it on....seems like price for bike motor etc...is around 1500 with battery for most of these places..i have even offered to pay their 65 dollar hour labor charge for hub motors but they just wanted to sell their bikes they had, however im sure they are better engineered than a typical bike because of e bike. but surely with the help of walmart I can find one that can handle an ebike motor....gut it seems like yo can get twice your value or 4 times your value if you get from the large bike suppliers like (bms...don't me to plug this but they seem to have a great selection but their shipping adds about 100 bucks or so would love to find an American supplier with technical support that adds a stocking fee for working motors etc)..noticed Walmart sells e bikes for 1000 or something but very little technical info on it and seem like we are in the 250 watt max range gearless hub terrirtory.....
I would like to start posting some interesting physic stuff I found out on the interet to help the people who have invested less than 200 hours or so on this ebike thing.
my build....haven't got a bike...but looking at bikes at Walmart to add a hub..want a mountain bike. noticed some have shocks and can be gotten around 200 bucks assemlbled. I have very little bike knowledge.
my fears----fork size so I can put a bike on...if I get an internal hub peddling or cassette type gear mechanism for peddling....does this effect second motor..
so bike selection is crucial...does it have disc brakes does it have v brakes....
looking to add a front hub motor...then later on add a rear wheel drive hub....or add a direct drive type system maybe with hub(the auto double speed drive would make interesting gear ratio)
so front hub is first...looked at q75 q85 q100 q100h magic pie2 smart pie 3 etc.... so confusing...just got an email from xiojang I believe about their 350 watt double speed automatic motor...and juding from threads in here its an 8 to1 and then a 4 to 1 gear ratio....confused about torque. though ......
want to get to 15 just on motor maybe up to 20 with peddling. ideal use motor for 4 to five miles per hour and then I add antother 4 to 5 miles per hour to make a nice easy cruise for me and not draw as many amps from battery.
want to be able to peddle. looking for a long range of 30 miles which seems unheard on...most builds seem to relate to top speed and not as a mode of transportation.
looking at mountain bike as an alternative. because I like the idea of using this thing as a bug out vehicle. first objective must be street legal. I must follow moped rules in my state for ebike(HOWEVER THERE IS SOMETHING THAT SAYS MUST KEEP 20 MPH OR BELOW I THINK ITS TREATED LIKE A 49CC ENGINE I DON'T NEED INSURANCE JUST A VALID DRIVERS LISCENSE..OBVIOUSLLY THE WHOLE EBIKE THING HASN'T KICKED OFF...THE CLOSET BIKESHOP THAT WOULD TALKE TO ME WAS 100 MILES AWAY. so I assume brake light front light etc....confused about turn signal though...however the legalities may not be practiced I just want to be in compliance I will have no problem keeping it under 20 mph. un assisted. and juding from the bicycle physics post I seen it would be pretty hard to exceed that speed if I keep my motor range around the 200 to 500 watt range.
NEED 300 pounds...bike 70 me 180 and then 50 pounds of carrying stuff.
I have played around on the bike simulator and it seems torque doesn't effect it...where am I missing something on the bike simiuluator.
will need bike racks.
batteries would love to desing something that could have folding out bike racks for solar panels...they are proected may get some charge time then fold out and get more power however exposed to envinronment.
tire selection bike model...fat tires seem cool don't know how they will help traction
so confused.....please help you electric bike guru's
looking for a bug out bike....
so lets keep it simple...if that's possible..front hub motor. can pull 300 pounds at 10 mph
h or 250 pounds at 15.
looking at q100h something with torque or those xionag motors with an 8 to 1 to a 4 to 1 gear ratio change seem pretty clever at 350 watts price was about 111 was quote I believe with another 70 bucks worth of electronics controllers... and 70 bucks shipping.
I would like to start posting some interesting physic stuff I found out on the interet to help the people who have invested less than 200 hours or so on this ebike thing.
my build....haven't got a bike...but looking at bikes at Walmart to add a hub..want a mountain bike. noticed some have shocks and can be gotten around 200 bucks assemlbled. I have very little bike knowledge.
my fears----fork size so I can put a bike on...if I get an internal hub peddling or cassette type gear mechanism for peddling....does this effect second motor..
so bike selection is crucial...does it have disc brakes does it have v brakes....
looking to add a front hub motor...then later on add a rear wheel drive hub....or add a direct drive type system maybe with hub(the auto double speed drive would make interesting gear ratio)
so front hub is first...looked at q75 q85 q100 q100h magic pie2 smart pie 3 etc.... so confusing...just got an email from xiojang I believe about their 350 watt double speed automatic motor...and juding from threads in here its an 8 to1 and then a 4 to 1 gear ratio....confused about torque. though ......
want to get to 15 just on motor maybe up to 20 with peddling. ideal use motor for 4 to five miles per hour and then I add antother 4 to 5 miles per hour to make a nice easy cruise for me and not draw as many amps from battery.
want to be able to peddle. looking for a long range of 30 miles which seems unheard on...most builds seem to relate to top speed and not as a mode of transportation.
looking at mountain bike as an alternative. because I like the idea of using this thing as a bug out vehicle. first objective must be street legal. I must follow moped rules in my state for ebike(HOWEVER THERE IS SOMETHING THAT SAYS MUST KEEP 20 MPH OR BELOW I THINK ITS TREATED LIKE A 49CC ENGINE I DON'T NEED INSURANCE JUST A VALID DRIVERS LISCENSE..OBVIOUSLLY THE WHOLE EBIKE THING HASN'T KICKED OFF...THE CLOSET BIKESHOP THAT WOULD TALKE TO ME WAS 100 MILES AWAY. so I assume brake light front light etc....confused about turn signal though...however the legalities may not be practiced I just want to be in compliance I will have no problem keeping it under 20 mph. un assisted. and juding from the bicycle physics post I seen it would be pretty hard to exceed that speed if I keep my motor range around the 200 to 500 watt range.
NEED 300 pounds...bike 70 me 180 and then 50 pounds of carrying stuff.
I have played around on the bike simulator and it seems torque doesn't effect it...where am I missing something on the bike simiuluator.
will need bike racks.
batteries would love to desing something that could have folding out bike racks for solar panels...they are proected may get some charge time then fold out and get more power however exposed to envinronment.
tire selection bike model...fat tires seem cool don't know how they will help traction
so confused.....please help you electric bike guru's
looking for a bug out bike....
so lets keep it simple...if that's possible..front hub motor. can pull 300 pounds at 10 mph
h or 250 pounds at 15.
looking at q100h something with torque or those xionag motors with an 8 to 1 to a 4 to 1 gear ratio change seem pretty clever at 350 watts price was about 111 was quote I believe with another 70 bucks worth of electronics controllers... and 70 bucks shipping.