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I Need Power - Whats The Best

Joined
Jan 18, 2008
Messages
37
I Am Looking To Build An Off Road Bike To Do A Bit Of Racing Locally - I Have Plenty Of Interest But Can’t Decide On The Right Set-up.
I Have Petrol Motors But They Dont Give The Umph I Am Looking For. I Am Looking At A 1000w Electric Motor Which Uses The Bikes Gears So You Get All The Power Through Seven (or Whatever Is On The Back) Gears And Using 20ah Batteries.
Tell Me - What Do You Suggest?
I Need Power And Want To Set Up Dirt Racing (hill Climbs, Dirt Tracks, Long Distance Events With Both Road And Trail Components Etc) - My Company Is Willing To Look At Sponsoring Events Etc So This Is A Real Potential To Develop Interest In Motored Bikes And Expand The Profile.
What About The Bike Frame Also?
 


L

Large Filipino

Guest
Man the way you sound here I don't think there's a bicycle on this earth that can withstand the punishments of an enduro type race never mind trying to gear it all within a bicycle rear derailier.
I don't think that's the image most of us owners want to see anyway a bicycle as fast as an enduro motorcycle. People see that then all of a sudden laws in the negative will start flowing our way.
Motoredbikes should be just that. Bicycles with engine assist not meant to go more than 20 mph. That's why cops in general leave us alone,with some exceptions.
 
A

andyinchville1

Guest
HI,

1000 W motor sounds like it would be above the limit for using without a license anyways Soooo.....
how about a YZ 250 with a rudimentary pedal setup on it so it can be ridden like a bike?

Andrew
 
Joined
Jan 18, 2008
Messages
37
lARGE fILIPINO,
iNTERESTING VIEW AND I BET ONE THAT MANY PEOPLE WILL SHARE. fACT IS HOWEVER THAT PEOPLE ARE TRYING TO INCREASE PERFORMANCE OF THE BIKES AND COMPANIES ARE MAKING FASTER BIKES WITH LARGER MOTORS. i SPOKE TO A GROUP VIA EMAIL LAST NIGHT WHO HAVE IN DEVELOPMENT AN ELECTRIC MOUNTAIN BIKE (FOR RACING) WITH A 3.5 KW MOTOR THAT THEY SAY WILL EXCEED 100KM. wHEN INDUSTRY STARTS MAKING PROFIT THE CONTROL AND ROMANCE IS LOST.
aS WITH THE LAW - THE GROWTH OF THE INDUSTRY IS SO FAST THAT THE REGULATORY BODIES WILL HAVE TO PUT CONTROLS IN PLACE TO ENSURE PUBLIC LIABILITY AND OTHER CONTRIBUTING FACTORS ARE COVERED. fACTUALLY THE LAW IS UNDER REVIEW HERE IN aUSTRALIA WITH CLEAR RECOGNITION FROM THE AUTHORITIES THAT MOTORISED BIKES WILL NEED POLICING - SO THIS IS NOTHING NEW AND I AM SORRY THAT IT WILL AFFECT ALL MOTORED BIKE ENTHUSIASTS.
i THIN I SHOULD ALSO EXPLAIN A BIT FURTHER THAT THE BIKES I AM LOOKING FOR ARE FOR OFF-ROAD OR SPECIALIST RACING USAGE ONLY - NOT FOR PUBLIC SALES FOR USE ON THE ROAD. mOUNTAIN BIKE RACING ETC IS VERY BIG WHERE I LLIVE AND THERE IS A VERY STRONG INTEREST IN DEVELOPING THE POWER ASSISTED RACING SO THAT MEANS PEOPLE WILL START BUILDING BIKES FOR THIS PURPOSE ANYWAY AS IT IS GREAT FUN. YOU CANT STOP THE PROGRESS BUT YOU CAN BE POSITIVE AND TRY TO HELP IT DEVELOP IN THE RIGHT DIRECTION.
 
Joined
Jan 18, 2008
Messages
37
aNDY,

i SEE WHAT YOU ARE SAYING AND WILL EXPLAIN FURTHER THAT THESE BIKES ARE NOT FOR EVERY DAY COMMUTING AND THEREFORE DONT NEED TO BE STREET LEGAL.
aLSO ALL PETROL POWERED BIKES EXCEED THE LEGAL REQUIREMENT OF 200W - SO IT REALLY IS A MUTE POINT.
tHE MARKET WE ARE LOOKING TO DEVELOP IS THAT OF MOUNTAIN BIKE RACING AND OFF-ROAD RACING IN GENERAL. tHERE IS AN EXISTING INTEREST IN DIRT BIKES BUT THEY HAVE LIMITED APPEAL IN AUSTRALIA AS THEY ARE VERY DAMAGING TO THE ENVIRONMENT - ESPECIALLY HERE IN tASMANIA WHERE THEY ARE FROWNED UPON.
tHE MARKET WE ARE LOOKING TO BE PART OF IS THE NEW TREND TOWARD MOTORISED BIKES AND THE OBVIOUS PROGRESSION WITH PEOPLE WANTING TO RACE THEM. sPOOKY TOOTHE HAD A RACE JUST RECENTLY AND PLENTY OF OTHERS ARE LOOKING TO GET IT GOING ALSO. sO IN SUMMARY WE ARE ARE TRYING TO KEEP AWAY FROM MOTOR BIKES BUT OPEN THE NICHE FOR MOTORED BIKES.
i AM SORRY THAT THIS MAY UPSET SOME PEOPLE - IT WASNT THE INTENTION. wE DO FEEL THAT THE MARKET WILL EMERGE ANYWAY AND IF IT IS SUPPORTED BY RESPONSIBLE PEOPLE WE SHOULD BE ABLE TO PROTECT THE RIGHTS OF AVID BIKE ENTHUSIASTS.
 

azbill

Active Member
Joined
Dec 15, 2006
Messages
3,721
mike,
you need to fix that caps lock key
it's too late to be shouting
 
Joined
Jan 18, 2008
Messages
37
Caps Lock

Sorry everyone - no shouting here. It is a work related problem as i am working on ACAD in the background and the caps lock is left on with that software.
After a while you dont even notice it is on any more as i usually converse over the net with other drafties who are in the same situation - wont happen again.
Oh yeah - ist lunch time here - that would make it midnight for you i guess?
 
E

Easy Rider

Guest
If your're looking to go fast, I recommend either a BZM or a Morini. That should provide enough power. Both are hi reving motors that the clutch engages around 7-8k rpm. Both motors are rated over 15 hp. A Morini will give you more bottom end kick.
 
Joined
Jan 18, 2008
Messages
37
Easy Rider,
Thanks for the advice. So the clutch has a high stall - that would be useful for sprints and hill climbs.
Do you know if you can customise the clutch and any idea where to go to buy the motor?
 
A

andyinchville1

Guest
Hi Mike,

I suppose in order to make good recommendations, it would be helpful to know what the rules are for the bikes involved (any rules on engine displacement, motor wattage, maximum bike weight etc...).

Initially I am thinking some sort of suspended mountain bike....If a custom frame is a possibility maybe a 50 cc Lifan type engine could be used (has gears from the factory)...Just a thought....Of course if the rules called for some racing under human power only the Lifan (because it adds a fair amount of weight) may be a disadvantage....so it really depends on the overall rules as to what the ultimate set up is.

Hope this helps.

Andrew
 
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