my new letter 2008 to currie:
dear currie sales people and tech people,
i am waiting for a bike design where the motor drives a continuous variable gear or runs
a geared hub like a shimano 8 geared hub but the drive gearing would need to be accessed
from both sides -unless the bionic charger design is used - but i think its an outdated design; i would like to see more advanced drives. how long do i have to wait?
the other idea i had was to run a 450 watt earth magnet off a shimano hub from accessing the gears from the left side and adding a free wheeling sprocket to the right side with a derailleur for pedalling - this would be a cheap cost effective measure until more advanced drives are available. Is that possible now? does shimano make a hub gear that can be accessed from the left side? But a motor only needs 3 speeds.
Also you can add an electronic assist mode that will
allow users to switch it on or off - the main purpose being to limit the speed by cutting off the motor so that those who wish to travel under 20 mph may do so. with electronic monitoring off the
bike should be able to achieve speeds of 25+. I find above those speeds the wind drag is very great and makes the ride unpleasant. This will allow you and users to obey the law.
the geared hub you currently use the motor does not access the gearing- this is the main obstacle in mainstream e-bike sales - gearing is essential for hilly terrain. And we the people require a bike that can travel 20 -25 mph unassisted on the flats for any serious utility use like running errands
and commuting.
I appreciate your efforts and look forward to you knowledgeable replies.
thanks,
love and light,
jon
old letter 2007:
high i recently purchased a mongoose gb24v 450 and was very disappointed in the package:
1. the motor is a crappy 2-250 watt motor over amped and over watted.
2. the motor is too weak to be a workable ev bike
3. the new drive system is impossible to upgrade the motor to a more powerfull 600 - 1kw motor that are typically avaiable on the market.
given these serious flaws i would make the following sugestions:
a. use an engine mount drive sytem that can easily be upgraded acording to the users budget
b. sell the the triangle mounted battery pack as as add-on for incresed range.
c.use an upgradable controller box
d. sell ev bike frames that can be customised easily - for custom engine placement etc.
please feel free to contact me regarding this important matter
dear currie sales people and tech people,
i am waiting for a bike design where the motor drives a continuous variable gear or runs
a geared hub like a shimano 8 geared hub but the drive gearing would need to be accessed
from both sides -unless the bionic charger design is used - but i think its an outdated design; i would like to see more advanced drives. how long do i have to wait?
the other idea i had was to run a 450 watt earth magnet off a shimano hub from accessing the gears from the left side and adding a free wheeling sprocket to the right side with a derailleur for pedalling - this would be a cheap cost effective measure until more advanced drives are available. Is that possible now? does shimano make a hub gear that can be accessed from the left side? But a motor only needs 3 speeds.
Also you can add an electronic assist mode that will
allow users to switch it on or off - the main purpose being to limit the speed by cutting off the motor so that those who wish to travel under 20 mph may do so. with electronic monitoring off the
bike should be able to achieve speeds of 25+. I find above those speeds the wind drag is very great and makes the ride unpleasant. This will allow you and users to obey the law.
the geared hub you currently use the motor does not access the gearing- this is the main obstacle in mainstream e-bike sales - gearing is essential for hilly terrain. And we the people require a bike that can travel 20 -25 mph unassisted on the flats for any serious utility use like running errands
and commuting.
I appreciate your efforts and look forward to you knowledgeable replies.
thanks,
love and light,
jon
old letter 2007:
high i recently purchased a mongoose gb24v 450 and was very disappointed in the package:
1. the motor is a crappy 2-250 watt motor over amped and over watted.
2. the motor is too weak to be a workable ev bike
3. the new drive system is impossible to upgrade the motor to a more powerfull 600 - 1kw motor that are typically avaiable on the market.
given these serious flaws i would make the following sugestions:
a. use an engine mount drive sytem that can easily be upgraded acording to the users budget
b. sell the the triangle mounted battery pack as as add-on for incresed range.
c.use an upgradable controller box
d. sell ev bike frames that can be customised easily - for custom engine placement etc.
please feel free to contact me regarding this important matter