Of course if you really wanted to make it high tech you could weld a bracket on and then mount an old laptop so it had an onboard computer, running linux on it of course :-)
Regards Reg > -----Original Message----- > From: Andrew Errington [mailto:[EMAIL PROTECTED] > Sent: Tuesday, 9 January 2007 9:25 a.m. > To: [email protected] > Subject: OT: Re: electric bike > > On Tue, 09 Jan 2007 08:29, you wrote: > > On Mon, Jan 08, 2007 at 09:48:04PM +1300, Andrew Errington wrote: > > > Most excellent. If it's not raining I might bring the electric > bicycle > > > I have just built. > > > > Really? What have you built? > > I've been looking at electric assist for my cycle, as I have a very > > daunting hill at the end of my homeward commute (in theory; currently I > > use the bus!), and I'm looking for something that could get me up there > > without causing a coronary ... > > Basically I have added an electric motor and batteries to an ordinary > mountain bike-style commuter bike. I bought a 250W geared motor, speed > controller and throttle grip from Oatley Electronics in Sydney, then I > added a freewheeling hub to the left side of the rear wheel and made a > mounting plate to attach the motor to the bike. A short length of chain > drives the hub, and the batteries are mounted into a pair of frames I made > that hang off the rear rack like panniers. It took a while to put it all > together, but I am very pleased with it. It goes at about 22km/h, and has > a range of about 30km on a full charge. > > In Wellington there is a company called NZ Eco Bikes > http://www.nzecobikes.co.nz/ who sell electric bikes and kits, but the kit > they sell is absurdly expensive, which is why I bought parts and fitted > them myself (not to mention the immense amount of fun you can get from > cutting and filing 3.5mm steel plate in your garage). > > In my opinion, hub motors are the way to go for retrofitting existing > bicycles. I bought two sets of motors etc., so I could do the same mod to > my wife's bike, but she wants to use it in less than a year. I found this > on TradeMe, and I have bought one (it's about the same price as the > collection of parts): > > <http://www.trademe.co.nz/Sports/Cycling/Parts-accessories/Other/auction- > 83770204.htm> > > It has a similar specification to mine, but of course a different design. > Since I won't have to fabricate anything it will be quicker to fit... > Maybe it will suit you Jim. I'll let you know how it turns out. > > AFAIK in New Zealand the power limit not to be classed as a moped is 300W. > Check out the LTSA website for the rules: there is another class from 300W > to 600W. Just something to bear in mind if building or buying. > > Oh, and "Linux". > > A >
