Front wheel drive

CRO74

1 mW
Joined
Mar 20, 2022
Messages
12
Just sharing a cheap bike I built from a revived cracked frame, good fun in the mud.712BF5D0-851A-4DEA-9F53-72335B7A7262.jpeg1A27CA1C-F65E-40A1-98D5-0EAF6B4AEE77.jpeg
 
Nice work.
Is that a double disc hub? Or did you attach your gear to the spokes? with that rag joint? (discs made from tires) that’s always off center in the videos if seen of the parts spinning. Or is it a rear wheel with an adapter to mount like a cassette? Where are you located as this set up is not that common? But very resourceful to use what’s available or what your budget and skills permit.
 
Nice work!

Does the motor have a freewheel?

We don't see many brushed motor builds these days. There is something to be said for simplicity. I'm sure it beats pedaling with no motor.
 
Skaiwerd said:
Nice work.
Is that a double disc hub? Or did you attach your gear to the spokes? with that rag joint? (discs made from tires) that’s always off center in the videos if seen of the parts spinning. Or is it a rear wheel with an adapter to mount like a cassette? Where are you located as this set up is not that common? But very resourceful to use what’s available or what your budget and skills permit.
Thank you
I’ve used a 52 tooth sprocket centred, drilled and bolted directly into the front hub which I made sure has no wobble and nice and balanced , then that runs to a 12 tooth freewheel sprocket. 450w motor 36v15AH li-ion battery.
It’s got lots of torque up hill and will easily spin the front wheel if you want but being 2wd its a different concept, easy through deep mud, sand but obviously not made for jumping with the extra weight up front. Australia.
 
Quinc said:
interesting! Haven't seen a hub drive like that before. does it have enough power to pull you up a hill?

Yes it pulls very well, 52t to 12t ratio 450w, cheap 2wd…
 
fechter said:
Nice work!

Does the motor have a freewheel?

We don't see many brushed motor builds these days. There is something to be said for simplicity. I'm sure it beats pedaling with no motor.

Thanks, and simple it is, yes I have a 12 tooth freewheel sprocket on the motor running to a 52t on the wheel, I built this for hill climbing single tracks in the bush and it’s definitely exceeded my expectations for the cost of the build, with that ratio it moves at a good jogging pace which is fine for the tracks I’m riding.
 
G'day CRO74.
Now that's proper DIY. Thinking outside the box, I like it.

AussieRider
 
AussieRider said:
G'day CRO74.
Now that's proper DIY. Thinking outside the box, I like it.

AussieRider

Thanks AussieRider, it’s very agricultural but surprisingly affective, front wheel drifting is so underrated!
 
Well done. These kinds of builds remind me of how much I prefer non-proprietary components.

These motors are common on stand-up scooters, so they are made in the millions, and there are upgrade kits for each part of it.
 
spinningmagnets said:
Well done. These kinds of builds remind me of how much I prefer non-proprietary components.

These motors are common on stand-up scooters, so they are made in the millions, and there are upgrade kits for each part of it.

Thanks spinningmagnets, it’s been a simple fun first build, got me hooked on the next project, a bit more refined.
 
Great day out climbing muddy rocky trails on the budget bike today, getting around 50km range ride while working the little 450w hard. Funny how such a cheap build can put a smile on your face.
 

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JackFlorey said:
That thing have a freewheel on it anywhere?

It looked to me like possibly there's a single speed freewheel mounted on something with the right threads that's attached to the motor shaft. Hard to tell. It could just be a fixed gear screwed on.
FW.jpg
s-l1600.jpg

Gearing looks like it might climb like a mountain goat.
 
LewTwo said:
Well that is different. How did you manage to attach the sprocket to the front wheel?

I’ve just centred the sprocket with the hub and drilled then bolted.
 

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JackFlorey said:
That thing have a freewheel on it anywhere?

Yes it’s a 12 tooth freewheel sprocket to a 52 tooth sprocket fixed to the hub, climbs very well.
 
E-HP said:
JackFlorey said:
That thing have a freewheel on it anywhere?

It looked to me like possibly there's a single speed freewheel mounted on something with the right threads that's attached to the motor shaft. Hard to tell. It could just be a fixed gear screwed on.
FW.jpg
s-l1600.jpg

Gearing looks like it might climb like a mountain goat.
That’s the freewheel I’ve used, mountain goat it is, interesting the different ways you look at uphill sections having the 2wd, especially in the mud- cheap grins.
 
Inspect that hub flange often. The extra drilled holes increased the possibility of stress cracking.

Here is an example (not exactly similar but you get the idea):
dt2.jpg
 
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