Ebike Conversion - My K2 Attack 2.0 w/ 48v 1000 watt front hub motor and 4x sealed lead-acid batteries
Re: Ebike Conversion - My K2 Attack 2.0 w/ 48v 1000 watt front hub motor and 4x sealed lead-acid batteries
Yeah, you don't realize how massive they are - and once you start strapping 40-50 together...well, at least they're not sealed lead-acid.
Understeer: You will hit the wall with the front end.
Oversteer: You will hit the wall with the rear end.
Horsepower: How hard you will hit the wall.
Torque: How far you will move the wall.
Gone hunting with Alec Baldwin and Dick Cheney. Back soon.
Re: Ebike Conversion - My K2 Attack 2.0 w/ 48v 1000 watt front hub motor and 4x sealed lead-acid batteries
Also surprised how light they are too. I don't have anything scientific like a scale, but a single 18650 feels about the same weight as a much smaller rechargeable AA.
Re: Ebike Conversion - My K2 Attack 2.0 w/ 48v 1000 watt front hub motor and 4x sealed lead-acid batteries
The mass difference between the 48-volt sealed-lead-acid battery I started out with is incredible; the main reason I initially used my old-school K2 downhill bike (and exploded the magnesium fork...dammit) was the 40 pound heft of that stupid battery pack, plus about 4 pounds of crap to keep it all attached semi-securely to the bike.
I'm working on my wife's hardtail mountain bike right now; I'm adding a 1000 watt rear-wheel hub motor with a twist (motorcycle) throttle and pedal assist - I think the pedal assist will be much less intimidating than the front-wheel drive thumb throttle setup I have on my bike. It's really unnerving when you give it a little too much juice and pull off a better FWD burnout than the ragged-out Accord next to you...
I'm working on my wife's hardtail mountain bike right now; I'm adding a 1000 watt rear-wheel hub motor with a twist (motorcycle) throttle and pedal assist - I think the pedal assist will be much less intimidating than the front-wheel drive thumb throttle setup I have on my bike. It's really unnerving when you give it a little too much juice and pull off a better FWD burnout than the ragged-out Accord next to you...
Understeer: You will hit the wall with the front end.
Oversteer: You will hit the wall with the rear end.
Horsepower: How hard you will hit the wall.
Torque: How far you will move the wall.
Gone hunting with Alec Baldwin and Dick Cheney. Back soon.
- 32wildbilly
- Never gonna run around and desert you
- Posts: 5791
- Joined: Sat Jan 06, 2018 2:46 pm
- Location: Kneebraska
Re: Ebike Conversion - My K2 Attack 2.0 w/ 48v 1000 watt front hub motor and 4x sealed lead-acid batteries
Put a wider front tire on that beeotch and hook that sh!t up BRAH!5chn3ll wrote: ↑Thu May 02, 2019 5:05 pm The mass difference between the 48-volt sealed-lead-acid battery I started out with is incredible; the main reason I initially used my old-school K2 downhill bike (and exploded the magnesium fork...dammit) was the 40 pound heft of that stupid battery pack, plus about 4 pounds of crap to keep it all attached semi-securely to the bike.
I'm working on my wife's hardtail mountain bike right now; I'm adding a 1000 watt rear-wheel hub motor with a twist (motorcycle) throttle and pedal assist - I think the pedal assist will be much less intimidating than the front-wheel drive thumb throttle setup I have on my bike. It's really unnerving when you give it a little too much juice and pull off a better FWD burnout than the ragged-out Accord next to you...
Never gonna make you cry...
Re: Ebike Conversion - My K2 Attack 2.0 w/ 48v 1000 watt front hub motor and 4x sealed lead-acid batteries
Gotta hang a covfefe can off the rear and add a plywood wing too.32wildbilly wrote: ↑Thu May 02, 2019 6:04 pmPut a wider front tire on that beeotch and hook that sh!t up BRAH!5chn3ll wrote: ↑Thu May 02, 2019 5:05 pm The mass difference between the 48-volt sealed-lead-acid battery I started out with is incredible; the main reason I initially used my old-school K2 downhill bike (and exploded the magnesium fork...dammit) was the 40 pound heft of that stupid battery pack, plus about 4 pounds of crap to keep it all attached semi-securely to the bike.
I'm working on my wife's hardtail mountain bike right now; I'm adding a 1000 watt rear-wheel hub motor with a twist (motorcycle) throttle and pedal assist - I think the pedal assist will be much less intimidating than the front-wheel drive thumb throttle setup I have on my bike. It's really unnerving when you give it a little too much juice and pull off a better FWD burnout than the ragged-out Accord next to you...
Re: Ebike Conversion - My K2 Attack 2.0 w/ 48v 1000 watt front hub motor and 4x sealed lead-acid batteries
Understeer: You will hit the wall with the front end.
Oversteer: You will hit the wall with the rear end.
Horsepower: How hard you will hit the wall.
Torque: How far you will move the wall.
Gone hunting with Alec Baldwin and Dick Cheney. Back soon.
Re: Ebike Conversion - My K2 Attack 2.0 w/ 48v 1000 watt front hub motor and 4x sealed lead-acid batteries
(996outpost.com stickers are good for at least 100 watts each)
Understeer: You will hit the wall with the front end.
Oversteer: You will hit the wall with the rear end.
Horsepower: How hard you will hit the wall.
Torque: How far you will move the wall.
Gone hunting with Alec Baldwin and Dick Cheney. Back soon.
- Water Hound
- NG (Second 100 Outposters!)
- Posts: 80
- Joined: Fri May 18, 2018 9:38 am
- Location: White Rock, BC, Canada
Re: Ebike Conversion - My K2 Attack 2.0 w/ 48v 1000 watt front hub motor and 4x sealed lead-acid batteries
The aerodynamic drag reduction with no vertical supports below the battery has to be good for an extra 10mph at least plus a 6oz weight savings. Well done!
Big swag mystery price winner and all round lucky guy
2004 C2 Cabriolet, Midnight Blue/Savannah Beige
2004 C4S Coupe, Atlas Grey/Black
2004 C2 Cabriolet, Midnight Blue/Savannah Beige
2004 C4S Coupe, Atlas Grey/Black
Re: Ebike Conversion - My K2 Attack 2.0 w/ 48v 1000 watt front hub motor and 4x sealed lead-acid batteries
Non-pro tip: Don't use metal calipers to measure the dimensions of your high capacity 18650...
It didn't let the fire out, but it made my hand buzz and the battery got uncomfortably warm
It didn't let the fire out, but it made my hand buzz and the battery got uncomfortably warm
- 32wildbilly
- Never gonna run around and desert you
- Posts: 5791
- Joined: Sat Jan 06, 2018 2:46 pm
- Location: Kneebraska
Re: Ebike Conversion - My K2 Attack 2.0 w/ 48v 1000 watt front hub motor and 4x sealed lead-acid batteries
In the business I believe that to be called a direct short! Bet it didn't take you long to measure it. Sorta like the blacksmith/horseshoe joke...
Never gonna make you cry...