Can you push your RC powered bike backwards?
- Thread starter barryfzr
- Start date
Ypedal
100 TW
yeah.. it sucks.. but it will go.. I normally push slowly to get things spinning then keep going.. or lift the back of the bike ..
AussieJester
1 TW
barryfzr said:Or does it lock up?
If you can how do you manage it? does it drive your motor in reverse?
cheers
Push mine backwards all the time, no problem.
KiM
Thud
1 MW
I shift into neutral & only the pedals turn backwards.
dequinox
10 kW
Mine is set so that the motor resists pushing the bike backward. I shift into higher gears and it is easier. If I try to push it while in the granny gear it gets harder.
mwkeefer
1 MW
Aussie, you have a one way bearing before your reduction (or after I suppose) right - hence 0 rolling back cogging effect..
Thud, your basically disconnecting your transmission and thus the drivetrain so back to normal bike where the pedals rotate backwards
I find mild cogging at best with my single stage left side drive but I'm isolated with an ENO between output and my final 56t rear ring for a total reduction of (I think) 14:1 and running against an 8t anyway... there is a tad of drag at the ENO still as it's new but I expect it will dissipate with time.
In comparison to geared hub motors some of which I have owned sound downright like they are going to break and are a total PITA to roll backwards anyway, the higher the internal reduction the worse the cogging effect of the motor is multiplied or reduced would be a better way to put it.
All that said, I suppose from days of riding in Phila with bike messengers and taking my bike in and out of lofts (high rises), I've become really adept at brake balancing the bike on either front or rear wheel so who the heck needs to backup? Seriously though I usually lock the back wheel brake and just lift/pivot the thing around... depending on the bike and curb weight with packs.
-Mike
Thud, your basically disconnecting your transmission and thus the drivetrain so back to normal bike where the pedals rotate backwards
I find mild cogging at best with my single stage left side drive but I'm isolated with an ENO between output and my final 56t rear ring for a total reduction of (I think) 14:1 and running against an 8t anyway... there is a tad of drag at the ENO still as it's new but I expect it will dissipate with time.
In comparison to geared hub motors some of which I have owned sound downright like they are going to break and are a total PITA to roll backwards anyway, the higher the internal reduction the worse the cogging effect of the motor is multiplied or reduced would be a better way to put it.
All that said, I suppose from days of riding in Phila with bike messengers and taking my bike in and out of lofts (high rises), I've become really adept at brake balancing the bike on either front or rear wheel so who the heck needs to backup? Seriously though I usually lock the back wheel brake and just lift/pivot the thing around... depending on the bike and curb weight with packs.
-Mike
gwhy!
100 kW
I dont have any motor isolation (no oneway bearing so motor turns when pushing backwards )and mine rolls backwards very easy, I wonder if its to do with the speed controllers 
..
..If the motors are dc(have'nt looked at em properly yet ;o) then connecting the the poles together does produce a braking effect..
we use this effect on our boat servos:
http://www.facebook.com/#!/photo.php?pid=10696096&o=all&op=1&view=all&subj=50642505762&id=769460211&fbid=402468415211
my other stuff is on there too if anyone wants to take a peak
we use this effect on our boat servos:
http://www.facebook.com/#!/photo.php?pid=10696096&o=all&op=1&view=all&subj=50642505762&id=769460211&fbid=402468415211
my other stuff is on there too if anyone wants to take a peak
boostjuice
10 kW
guys. It doesn't matter if you have a one-way or not. The motor turns over when reversing regardless (unless the drive is somehow disengaged manually). If it didn't, then power could not be transferred to the wheel when going forward. Ya dig?
Tis true some motors cog more than others. Also, for a given size class, brushed motors are far easier to turn over when unpowered.
Tis true some motors cog more than others. Also, for a given size class, brushed motors are far easier to turn over when unpowered.
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