Belt or Sprocket Adapters ???

So why not add the second chain to he right side?

Why arn't there any sprocket adapters for that side?

I found this sprocket adapter for a free wheel hub, not exactly what I was looking for.

http://www.staton-inc.com/store/index.php?p=product&id=1329

Or just use regen in the rear for your braking. no mechanical. Tune it to be strong enough so that it handles most situations, and the front brake will pick up the rest of the slack.

That's what i do.

neptronix said:

Or just use regen in the rear for your braking.

Click to expand...

Not a bad idea for a shafted motor and sprocket drive. (On a flatted axle hub motor, regen takes the motor's worst feature and makes it even worse.)

I enjoy coasting too much to opt into a regen-capable system that doesn't coast.

Chalo said:

neptronix said:

Or just use regen in the rear for your braking.

Click to expand...

Not a bad idea for a shafted motor and sprocket drive. (On a flatted axle hub motor, regen takes the motor's worst feature and makes it even worse.)

I enjoy coasting too much to opt into a regen-capable system that doesn't coast.

Click to expand...

Have you seen the proportional regen setup Justin is putting in his new Phaserunner controllers?
You can coast easily, but if you apply the brakes at all, regen kicks in, and then as you press the throttle, you can adjust the regen amount.

Regen is practically impossible in a mid drive full suspension bike which needs to use a spring loaded chain tensioner.

Avner.

Searching for sprocket adapters I saw this page “OneUp 45 Tooth XTR Conversion” but what I really need is a way to use a motorcycle sprocket for a #35 chain, maybe 65 sprocket teeth? But will bicycle sprocket pitch work for a #35 chain?

http://www.pinkbike.com/news/oneup-45-tooth-xtr-conversion-review-2015.html

Well now I am thinking that I can just take and old cassette and remove the 34t sprocket, drill holes then bolt on the motorcycle sprocket. I have searched for this concept on endless sphere, but with out the right words, nothing shows up.

Yet it looks like I could use one of these “OneUp” sprocket adapters for the motorcycle sprocket. Or do I need two of the bicycle sprockets from a cassette to hold the motorcycle sprocket?

And finally I will put a smaller cassette on the free hub, like maybe a 6 or 7 speed.

It looks like for a #35 chain the sprocket will need for more teeth maybe a 120? or more....does anyone know how many teeth would fit into a 6 to 8 inch disc? maybe I can calculate it.
and where can I get such a large sprocket for teh #35 chain?


http://www.pinkbike.com/u/mikelevy/album/OneUp-45t-XTR-Conversion/





or maybe I need the right kind of cassette:







single speed cassette I will have to bolt a large sprocket to the small one.

well here is one for a #40 chain but they do not tell what diameter it is
52 Tooth Sprocket Roller Chain, Plate Type https://www.rcpw.com/snow-plow-part...1411800.html?gclid=CIygvc-2i9ECFd26wAodEdYPzg

there must be place that specializes in such information.

and this one Azusa 60 Tooth Steel Sprocket 2151

http://www.jackssmallengines.com/jacks-parts-lookup/part/azusa/2151?gclid=cmba7fe2i9ecfv2ewaodi4qpoq

Specs
Type Steel Sprocket
Bore 1-3/8" maybe too smal of a hole...
Chain Number 35
Equipment Type Go Kart
Tooth 60


ah a 72 tooth sprocket:

#35 72T Go Kart Sprocket 4 Bolt

http://www.quickieparts.com/go-kart...-4-bolt.html?gclid=CNPdqpC5i9ECFeHhcgode2gJcA



This one is the best I have seen , but it still requires more room for the chain and possibly bending thet frame. MBR also has sprockets to fit the adapters.

https://endless-sphere.com/forums/viewtopic.php?f=1&t=92388#p1351182

Oset electric trials bikes . do a sprocket carrier , it has 6 bolt 44mm bcd centre and you can mount kart sprockets or belt pulleys 8)

I am now trying to fit a freewheel sprocket at the left side of my back wheel and then bolt an 80 tooth sprocket, so I can coast without dragging the motor.

vagosofron said:

I am now trying to fit a freewheel sprocket at the left side of my back wheel and then bolt an 80 tooth sprocket, so I can coast without dragging the motor.

Click to expand...

That's how I set up my own first e-bike many years ago. I used a RH/LH threaded BMX hub, but I made a longer multi-speed axle for it. I made a 144t #25 chain sprocket that mounted to the teeth of a 16t left side freewheel with eight bolts.

You have to use a left hand threaded hub and freewheel for this job; it won't work any other way. A normal flip-flop hub or reversible track bike hub won't do it, because those are threaded RH on both sides.

You might still be able to get a Currie RH/LH threaded hub that's already spaced to 135mm with room for a 7 speed freewheel. Then find an ACS Southpaw left side freewheel (I don't think there are any other sizes available) and modify an existing sprocket to fit over the body of the freewheel and bolt to its teeth.

Chalo said:

vagosofron said:

I am now trying to fit a freewheel sprocket at the left side of my back wheel and then bolt an 80 tooth sprocket, so I can coast without dragging the motor.

Click to expand...

That's how I set up my own first e-bike many years ago. I used a RH/LH threaded BMX hub, but I made a longer multi-speed axle for it. I made a 144t #25 chain sprocket that mounted to the teeth of a 16t left side freewheel with eight bolts.

You have to use a left hand threaded hub and freewheel for this job; it won't work any other way. A normal flip-flop hub or reversible track bike hub won't do it, because those are threaded RH on both sides.

You might still be able to get a Currie RH/LH threaded hub that's already spaced to 135mm with room for a 7 speed freewheel. Then find an ACS Southpaw left side freewheel (I don't think there are any other sizes available) and modify an existing sprocket to fit over the body of the freewheel and bolt to its teeth.

Click to expand...

That is a great idea, but I'm trying to keep the cost low, so that's a no for me.

https://www.electricbike.com/3d-printed-rc-drive/