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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Upgrading childs electric bike
Alan Campbell wrote:
My son has an electric quad bike that he has had for about a year now. He is very confident on it now and is complaining that it doesnt go fast enough ! I was wondering if there is anything that I can do about this ? Is it practical to change the gearing of the motor? You'd lose some acceleration though... Lee -- To reply use lee.blaver and NTL world com |
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Upgrading childs electric bike
On Tue, 22 Jul 2003 17:13:55 UTC, Lee Blaver
wrote: Alan Campbell wrote: My son has an electric quad bike that he has had for about a year now. He is very confident on it now and is complaining that it doesnt go fast enough ! I was wondering if there is anything that I can do about this ? Is it practical to change the gearing of the motor? You'd lose some acceleration though... Also, worry about whether the braking is up to it. -- Bob Eager rde at tavi.co.uk PC Server 325*4; PS/2s 9585, 8595, 9595*2, 8580*3, P70, PC/AT.. |
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Upgrading childs electric bike
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Upgrading childs electric bike
Alan Campbell wrote:
My son has an electric quad bike that he has had for about a year now. He is very confident on it now and is complaining that it doesnt go fast enough ! I was wondering if there is anything that I can do about this ? It has a 6v 7.2Ah battery fitted. I have checked the motor, but cannot see anything that tells me what rating it is. Could I upgrade the battery ? what is the best way to go ? upping the volts of the Ah. Maplins sell 12v 7Ah and 6v 10Ah batteries that would fit the space, or should I just foget the idea ? You may be embarking on something you didn't anticipate if you start tinkering. Power goes up roughly as the squaee of the applied voltage, so doubling the volts will net you 4 times the power and proably let the magic smoke out of the motor :-) If you REALLY want to have a go, use a starter motor and a 75A/h car battery :-) Battery lasts about 5 minutes between charges, and the motor will be shot in an hour, but in between its - quite fun Those motors are a few hp re-motoring is probably your best bet, or rewinding the one you have. Something out of a cordless power tool might be a place to start. TIA Alan |
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Upgrading childs electric bike
The Natural Philosopher wrote in message ...
Alan Campbell wrote: My son has an electric quad bike that he has had for about a year now. He is very confident on it now and is complaining that it doesnt go fast enough ! I was wondering if there is anything that I can do about this ? It has a 6v 7.2Ah battery fitted. I have checked the motor, but cannot see anything that tells me what rating it is. Could I upgrade the battery ? what is the best way to go ? upping the volts of the Ah. Maplins sell 12v 7Ah and 6v 10Ah batteries that would fit the space, or should I just foget the idea ? You may be embarking on something you didn't anticipate if you start tinkering. Power goes up roughly as the squaee of the applied voltage, so doubling the volts will net you 4 times the power and proably let the magic smoke out of the motor :-) If you REALLY want to have a go, use a starter motor and a 75A/h car battery :-) Battery lasts about 5 minutes between charges, and the motor will be shot in an hour, but in between its - quite fun Those motors are a few hp re-motoring is probably your best bet, or rewinding the one you have. Something out of a cordless power tool might be a place to start. TIA Alan With a conntional pushbike I have done a car battery + starter motor running on the outside of the back wheel. Switched by the solenoid switch from an old mini (with a manual push switch between the terminals) Very exciting, however a bit heavy to push up hill when the battery goes flat. Also a bit light on the front wheel - can do a literally electrifying wheelie! |
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Upgrading childs electric bike
"Alan Campbell" wrote in message om... My son has an electric quad bike that he has had for about a year now. He is very confident on it now and is complaining that it doesnt go fast enough ! I was wondering if there is anything that I can do about this ? It has a 6v 7.2Ah battery fitted. I have checked the motor, but cannot see anything that tells me what rating it is. Could I upgrade the battery ? what is the best way to go ? upping the volts of the Ah. Maplins sell 12v 7Ah and 6v 10Ah batteries that would fit the space, or should I just foget the idea ? What is the law on these electric scooters and quads that have kids riding them dangerously all over the place, on and off pavements? Some the children look too young to drive a motorised vehicle. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.488 / Virus Database: 287 - Release Date: 05/06/2003 |
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Upgrading childs electric bike
"IMM" wrote in message
... What is the law on these electric scooters and quads that have kids riding them dangerously all over the place, on and off pavements? Some the children look too young to drive a motorised vehicle. http://www.hmso.gov.uk/acts/acts1988...80052_en_1.htm |
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Upgrading childs electric bike
"Nick Finnigan" wrote in message
... "IMM" wrote in message ... What is the law on these electric scooters and quads that have kids riding them dangerously all over the place, on and off pavements? Some the children look too young to drive a motorised vehicle. http://www.hmso.gov.uk/acts/acts1988...80052_en_1.htm That only seems to mention powered pedal cycles, not those little electric cars & quads ..? a |
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Upgrading childs electric bike
"al" wrote in message
... "Nick Finnigan" wrote in message ... "IMM" wrote in message ... What is the law on these electric scooters and quads that have kids riding them dangerously all over the place, on and off pavements? Some the children look too young to drive a motorised vehicle. http://www.hmso.gov.uk/acts/acts1988...80052_en_1.htm That only seems to mention powered pedal cycles, and lawn mowers, and motor vehicles. not those little electric cars & quads ..? they must be motor vehicles then. |
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Upgrading childs electric bike
"The Natural Philosopher" wrote in message ... IMM wrote: "Alan Campbell" wrote in message om... My son has an electric quad bike that he has had for about a year now. He is very confident on it now and is complaining that it doesnt go fast enough ! I was wondering if there is anything that I can do about this ? It has a 6v 7.2Ah battery fitted. I have checked the motor, but cannot see anything that tells me what rating it is. Could I upgrade the battery ? what is the best way to go ? upping the volts of the Ah. Maplins sell 12v 7Ah and 6v 10Ah batteries that would fit the space, or should I just foget the idea ? What is the law on these electric scooters and quads that have kids riding them dangerously all over the place, on and off pavements? Some the children look too young to drive a motorised vehicle. **** off,you sad little ******. I think we have one here. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.488 / Virus Database: 287 - Release Date: 06/06/2003 |
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