Gearing question

ANDARIAL

ANDARIAL

ANDARIAL

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Joined
19 Oct 2002
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Woolyback Country
Noob here so please be gentle:)

Got a cheapy e-bike with a rear gear with`super low 14-28`printed on the cog
i am finding the gearing too`low?`i.e. i have to pedal like hell to go fast
Would i just need to change out the rear cog/gear to make it so that i would not have to pedal as fast to get the same speed?
or would it involve new chain and deraileur and front cog/pedal?
ignore that is has a motor as it is only the `mechanical` aspect i am asking about :)
Thanks
 
14-28 is definitely not low, doubly so for an e-bike. My bike is running 10-30 on an e-bike I'd want at least a 34 on the front with a 10 on the back.
 
robj20 said:
14-28 is definitely not low, doubly so for an e-bike. My bike is running 10-30 on an e-bike I'd want at least a 34 on the front with a 10 on the back.
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:confused:
Sorry I said I was a noob.do you mean that my gearing is better than yours?
I can only Pedal at a max speed of 20 mph and want to increase that if possible while pedaling less.....if that makes sense:)
 
ANDARIAL said:
:confused:
Sorry I said I was a noob.do you mean that my gearing is better than yours?
I can only Pedal at a max speed of 20 mph and want to increase that if possible while pedaling less.....if that makes sense:)
Click to expand...
Even on my 10-42 X 30 I top out on flat or downhills.
Can you change the chainring to something bigger? What does it have fitted at the minute?
 
Do you have it on pedal assist mode? i.e. the motor is making it easier to pedal? Are you sure you have the motor settings right?

The gear ratios available look ok to me. Have you tried it in normal bike mode (i.e. no motor assistance) with chain on biggest chainwheel at the front and smallest cog at the back? I don't think you would find that too easy to pedal.
 
radderfire said:
Do you have it on pedal assist mode? i.e. the motor is making it easier to pedal? Are you sure you have the motor settings right?

The gear ratios available look ok to me. Have you tried it in normal bike mode (i.e. no motor assistance) with chain on biggest chainwheel at the front and smallest cog at the back? I don't think you would find that too easy to pedal.
Click to expand...
He says he's maxing out at 20mph so regardless what mode its in that's slow.
 
yeah once i get up to speed with motor,then turn it off i can not get more than 20mph on the flat.My legs are going like the clappers and i can`t pedal any faster
Even not using the motor i can pedal up to 20mph,hard yes but not impossible

Will see if there are any details on the front cogs once it warms up :D
EDIT counted 42 teeth on the front largest cog.looks like a few are `chipped/smaller`:(
bike still pedals ok though
 
Last edited:
Those chipped teeth will be shift gates for the chain to move up to the cogs easier and are completely normal.

A 14-28 setup is what is known as a freewheel, you can't get any higher gearing due to 14t being the smallest cog that fits round space required for the removal tool to fit.

To fit a cassette that will allow 11-28 on 7 speed you would need a new rear wheel with a freehub body with splines to suit the cassette.

https://www.parktool.com/blog/repair-help/determining-cassette-freewheel-type

Here are the speeds you would do at different RPM

 
Thanks jonny
Changing the rear wheel is a no no as it has the motor inside
The bike is working fine as is,i was just wanting to get a better speed with less revolutions of pedal
Looks like i will not mess with it
Thanks again to all who replied :)
 
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