¿How do I put the cassette on a rear hub without the freewheel?

[Debunker]

Months ago I ordered this kit:


https://es.aliexpress.com/item/4000838391101.html?spm=a2g0s.9042311.0.0.27424c4dVcSU1m

Today it is finally in my home, and I notice something... it lacks the freewheel piece where the cassette disc usually goes...

I try to searh for the piece or if its another system, but I'm too dumb to figure it out even with Google powers.

I managed to extract the cassette of the other wheel without propper tools, but I don't think I can extract the piece that holds the spins in only one direction on the old wheel, and there is no way I can put it as it is now on the rear hub. So... what now?

 

[pwd]

Based on the photos on AliEpxress, that motor requires a threaded freewheel and not a cassette:
https://cdn-0.sheldonbrown.com/images/freewheel-vs-k7.jpg

or

https://www.sheldonbrown.com/free-k7.html

 

[Firedog]

Freewheels are used on most inexpensive rear hub motors. The coasting ratchet is build in.

You bought a cassette which is just a stack of gears that fit over a ratcheting hub and can be used for many gearing combos.

Cassettes are simplier and usually less expensive, especially if you need an 11t top speed gear.

AliExpress is notorious for mixing up the two (I think intentionally) . Their pictures however, are usually correct. If what you got was call a freewheel on Ebay, you could get a refund. Doubt that will happen from AliExpress, especially with the crazy shipping fees.

 

[markz]

English is not their first language and its so common for them to say its a cassette when its really a freewheel.

Freewheels are quite cheap, I'd even say cheaper then cassettes. I guess I should just check and see.
Chain Reaction Cycle has a dirt cheap 9spd cassette - Ventura Microshift 9 Speed Cassette $2.00 ----- two bucks!
next cheapest is $20, $22

$10 for multiple freewheels all day long on amazon.

ebiking with hub motor, you only really only use 4 speeds in the rear, maybe 5

 

[Debunker]

Well, thanks, I just go this morning at my nearest bike store and purchase a freewheel por 9.95, perfect fit, all solved.

Never saw one of those, but it appears is the older system.
Now only remain to wiring everything and it will be good to go, if everything works..

 

[Firedog]

$10 for multiple freewheels all day long on amazon.

I got boxes of the $10 variety freewheels 14/28t 5,6 ,or 7 speed on cheapo bikes. Free to any one that want to pick 'em up.

To me, those are worthless on a 25mph ebike conversion, since above 15mph you can't pedal fast enough to assist the motor and battery. Both the ebike's range and the fun of riding suffer, IMO.

Anyone with a $10 source for 11/28t, 7 or 9 speed freewheels, please list a source.