Re: Electric motorbike racing
Judging from the videos of the acceleration of the Tesla car / youtube/ i can only imagine what is the acceleration of electric bike with a nice motor.
Maybe that will be the turning stone in car and bike history, when they can really offer something that's better than their petrol counterparts. I see that more difficult done with bikes, cause petrol bikes accelerate really fast. However not having a gearbox will really help.
What is the weight to HP of that bike?
Re: Electric motorbike racing
Quote:
Originally Posted by
silyavski
Judging from the videos of the acceleration of the Tesla car / youtube/ i can only imagine what is the acceleration of electric bike with a nice motor.
The difficulty with a bike is the tendency to wheelie limits the acceleration obtainable, but still the acceleration will be substantial. We have a fixed gear ratio, so for example if we gear it for a top speed of 160mph we will, according to my calculation,easily get 0-60 in under 2.4s and 100mph in about 4.2s. Compare that with these figures:
Quote:
Originally Posted by
silyavski
I see that more difficult done with bikes, cause petrol bikes accelerate really fast. However not having a gearbox will really help.
Yes - if we gear it for a torque of just over 1000Nm at the rear wheel, we'll have that torque available all the way up to 180mph.
Quote:
Originally Posted by
silyavski
What is the weight to HP of that bike?
Around 1000W/kg. Compare that with these:
Re: Electric motorbike racing
Hi Jonathan,
.
A bit of metadata mining and found what you were referring to on my Build Log thread. Very nice and I'll be following this one with interest, given some of my parts have also made their way into the motorsport field, although the vehicles in question can "stand up by themselves" ;)
Re: Electric motorbike racing
Thanks for the interest. Co-incidentally I'm also working on a project to self-balance a motorbike for disabled riders, so maybe one day it will fit your criterea!
We're at the TT now - arrived yesterday. All set up in the paddock, so now it's a race to get the bike finished in time and resit the temptation to play with our pit vehicle - a Segway.
Re: Electric motorbike racing
Quote:
Originally Posted by
Jonathan
Thanks for the interest. Co-incidentally I'm also working on a project to self-balance a motorbike for disabled riders, so maybe one day it will fit your criterea!
We're at the TT now - arrived yesterday. All set up in the paddock, so now it's a race to get the bike finished in time and resit the temptation to play with our pit vehicle - a Segway.
How about a few pics.:encouragement:
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Re: Electric motorbike racing
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Re: Electric motorbike racing
We're almost ready now. First qualifier is on Friday...
http://www.mycncuk.com/attachment.ph...id=15449&stc=1
Re: Electric motorbike racing
How much does it weigh Jonathan.? The squareness makes it look heavy but sure it's not.!
Good Luck to the Team.!
Re: Electric motorbike racing
Quote:
Originally Posted by
JAZZCNC
How much does it weigh Jonathan.? The squareness makes it look heavy but sure it's not.!
Got any scales?
Seriously, we've not had the bike all together yet so it's not been weighed and it doesn't look like there are scales for bikes on this island! We'll weigh it when we can, but I guess about 230-240kg. The batteries are the main weight at ~87kg. The frame hardly weighs anything - it's 7xxx series aluminium.
Can anyone spot the bits I made ;)
Re: Electric motorbike racing
Quote:
Originally Posted by
Jonathan
Can anyone spot the bits I made ;)
Would that be for hanging onto.?
Don't they have a Minimum weight classification for Electric bike racing.? They do for the smelly versions.!