April 7, 201610 yr Great replies all of you.. I,ll read them all again, do some more research and peddaling!!! I have said all along motor/ controller are capable of way more than 250w...Putting bike into a situation where it demands it is quite different ,but I haven,t the evidence to substantiate anything ,whereas your graphs etc speak for themselves. Points accepted.... Thanks for patience. Apologies for pedantic attitude, no offence meant to anyone.. Great thread tho... I promise to try harder to flatten my battery quicker...and start a new argument afterwards.!!!! The bike is superb..Couldn't recommend it more highly. Take care.. Good cycling... [ATTACH=full]13591[/ATTACH] Me and bike top of Neulous. The Alberes..not bad for a pup??? Picture taken at around 3600ft. Climbed up from 198..Took 1hr 48 mins..(and 92%) to just over 4000ft.( top was in cloud as village (Laroque Des Alberes) was when I left.. Your inability to drain your battery quicker than you do is testament to your ability to keep your motor running extremely efficiently. Whatever you're doing, it's clearly a good riding style and a great position to be in.
April 7, 201610 yr Author Your inability to drain your battery quicker than you do is testament to your ability to keep your motor running extremely efficiently. Whatever you're doing, it's clearly a good riding style and a great position to be in. Cheers Dan...Going home in morning..back to Derbyshire/ Lady Bower/ Howden Res.. Just as stunning.. Do think bike promotes better technique..noticed on slippy technical bits pays dividends to keep backside on seat/ wheel weighted for traction..so much easier with a bit of help to keep pedals turning.. Take care... Ps. Mountain in background of picture is Mt Canigou..just over 9000ft... Highest in region, will be snow capped til mid May...then again mid Oct.. Its strange doesn't look much higher than where photo was taken, its actually 3 times higher.. Edited April 7, 201610 yr by (NoLongerRegistered#15675)
April 7, 201610 yr Your inability to drain your battery quicker than you do is testament to your ability to keep your motor running extremely efficiently. Whatever you're doing, it's clearly a good riding style and a great position to be in. That's an interesting point. Theory says that if you keep the crank rotating at about 2/3 the maximum RPM, you get the highest efficiency and longest range; however, it's not as simple as that because there's so many other factors that come into it. It would be closer to the truth if the controller didn't change the maximum current. The sophisticated algorithms in the controllers are constantly changing the PWM to the motor, varying it with pedal pressure, bike speed, LCD setting and crank speed. The 2/3 rule only applies when power is at maximum. I did some tests with a crank-drive bike with a Nuvinci CVT fitted so that I could keep the crank turning at the optimum speed, which I monitored on a LCD. It showed that there was little difference whether I kept the crank speed at optimum or just rode the bike in the normal way. From all the tests I've done, I found that there's two ways that you can get increased range from your battery: Turn the power down or pedal harder. Apart from those, there's no magic formula yet.
April 7, 201610 yr Author I don't think about doing anything different to normal but I have found light pedal pressure gives far lower current shown on graphic. For example pedalling at 60 cadence but then increasing pressure sees,s similar graphic rise to at lower cadence..Keep pedal pressure low at any cadence is what I tend to do.. Its easier on legs too.( and better for repaired knee) Infact I,d go as far as saying with mine help from motor simply correlates with pedal pressure, irrespective of cadence..Your pedal pressure automatically falls with increased rpm, so it stands to reason generally bike would be more efficient with us pedalling faster.? So I,d agree for ultimate long range pedal hard in low setting...but for getting best compromised range pedal gentle on highest setting ??? Edited April 7, 201610 yr by (NoLongerRegistered#15675)
April 30, 20169 yr Hi there new to all this and this may not be the correct place to post this. I seem to have made a complete mess of buying a motored wheel.I am 56 and unfit I work as a private hire driver my neighbour offered me an older ebike with a 250w motor however due to the fact that I am about 30 kilos over the max load capacity it struggles even on very slight inclines.So silly me thought a bigger motor would help so I bought a 500w motor then on doing some research (yes I now know I should have done this first) I find I cannot fit this to the bike as it is not legal in the UK and it would basically be a moped and would need to meet all the same requirements otherwise I would be putting my driving licence at risk of points or a ban which would not be very good I feel that if it is not legal to use the wheel then it should not be legal to sell said wheels in this country.
April 30, 20169 yr I hear you memac. It is legal if you happen to have access to fenced private land. And some people take the risk and ride them anyway. If you are careful and behave unless you have an accident the risk is low. But as you note if something happens then the shit that follows could cost you your job. It's not one to take chances with. Me I am three years from an accident and the lawyers will soon be agreeing a payment. If my bike had been illegal then I could have suffered injury, and been prosecuted because of a 4*4 on a cycle path.
April 30, 20169 yr Hi there new to all this and this may not be the correct place to post this. I seem to have made a complete mess of buying a motored wheel.I am 56 and unfit I work as a private hire driver my neighbour offered me an older ebike with a 250w motor however due to the fact that I am about 30 kilos over the max load capacity it struggles even on very slight inclines.So silly me thought a bigger motor would help so I bought a 500w motor then on doing some research (yes I now know I should have done this first) I find I cannot fit this to the bike as it is not legal in the UK and it would basically be a moped and would need to meet all the same requirements otherwise I would be putting my driving licence at risk of points or a ban which would not be very good I feel that if it is not legal to use the wheel then it should not be legal to sell said wheels in this country. There are lots of things can be done to increase power AND stay legal. If you start a new thread we can help you. Sent from my HTC One_M8 using Tapatalk
April 30, 20169 yr Hi there new to all this and this may not be the correct place to post this. I seem to have made a complete mess of buying a motored wheel.I am 56 and unfit I work as a private hire driver my neighbour offered me an older ebike with a 250w motor however due to the fact that I am about 30 kilos over the max load capacity it struggles even on very slight inclines.So silly me thought a bigger motor would help so I bought a 500w motor then on doing some research (yes I now know I should have done this first) I find I cannot fit this to the bike as it is not legal in the UK and it would basically be a moped and would need to meet all the same requirements otherwise I would be putting my driving licence at risk of points or a ban which would not be very good I feel that if it is not legal to use the wheel then it should not be legal to sell said wheels in this country. Post pictures of your bike. We will then be able to suggest ways to solve your problems.
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