Rag joint or hub adapter the only options?

[PsychDoc]

I have a 3 speed Sturmey Archer rear hub- love it- but its about 2.125 diameter and has a slight 'hourglass' shape so I don't think a hub adapter will work, and I refuse to use a rag joint. are there other options or do I need to give up 3 speed and use ? a coaster single speed? help please

 

[kelly dean]

a good machinist could turn one up , the only other option that comes to mind is using a jack shaft shift kit...... kelly

 

[PsychDoc]

I was afraid of that. A good machinist = $$$

 

[waynesdata]

@PsychDoc you have more options. If the hub is disc you can do disc mount. That is a more stable option than Rag joint or hub adapter. You can also do a jack shaft setup also better than Rag joint or hub adapter. Jack shaft allows for fat tires and rear disc at same time.

 

[indian22]

@PsychDoc you have more options. If the hub is disc you can do disc mount. That is a more stable option than Rag joint or hub adapter. You can also do a jack shaft setup also better than Rag joint or hub adapter. Jack shaft allows for fat tires and rear disc at same time.

The disc rotor bolt pattern on the "shifter" hub I reckon to be a very scarce item? If your hub has this feature it is a solution for which inexpensive adapters are available.

Using a jack shaft to "crossover" motor output & drive the existing rear pedal sprocket will work, but the final sprocket size would need to be substantially increased in tooth count. Though not a complex problem it's certainly not couple of hours bolt on undertaking either....some assembly and fitting required, lol. I'd think it worth tackling as,"A good shifter does change things" like K.C. Vale was fond of reminding us.

Rick C.

 

[PsychDoc]

Shifting is not an option out here on the left coast- smoke all the weed you want, but don't shift that motorized bike.

Seems a heavy duty wheel, coaster break, hub adapter is the easy solution?

 

[indian22]

Shifting is not an option out here on the left coast- smoke all the weed you want, but don't shift that motorized bike.

Seems a heavy duty wheel, coaster break, hub adapter is the easy solution?

Monarch, Sta-tru are mid-range pricewise for wheels ...Workman very heavy duty and higher priced. I've used all of these and they work well as a coaster brake and using the 1.5" three bolt sprocket adapter.

All three are steel cruiser style wheels.

 

[waynesdata]

Monarch, Sta-tru are mid-range pricewise for wheels ...Workman very heavy duty and higher priced. I've used all of these and they work well as a coaster brake and using the 1.5" three bolt sprocket adapter.

All three are steel cruiser style wheels.

How do you feel about sealed vs packed bearing wheels?

 

[waynesdata]

Shifting is not an option out here on the left coast- smoke all the weed you want, but don't shift that motorized bike.

Seems a heavy duty wheel, coaster break, hub adapter is the easy solution?

LOL you can smoke weed, but cant shift. Even if I could not shift I would still jack shaft to keep my rear disc and wide tires.

 

[indian22]

How do you feel about sealed vs packed bearing wheels?

I prefer sealed but these are seldom seen in other than expensive wheel hubs, typically custom laced, for cruiser style hubs. or road bikes in competition lightweight skinny hubs for the road bicycles or downhill mountain bicycles.

I just mounted custom built billet aluminum rear hub for disc rotor and dual sprockets (pedal & motor drive) for my hybrid gas and electric pedal bike and it features sealed bearings, but that's a $250. hub and wheel, but it's really sweet! That's a 38 tooth cog and 203 mm rotor shown in the photo

Rick C.

 

[waynesdata]

Looking at sturmey-archer 8 speed disc hub not sure what kind of bearings it has.

 

[PsychDoc]

View attachment 102541 View attachment 102542


I prefer sealed but these are seldom seen in other than expensive wheel hubs, typically custom laced, for cruiser style hubs. or road bikes in competition lightweight skinny hubs for the road bicycles or downhill mountain bicycles.

I just mounted custom built billet aluminum rear hub for disc rotor and dual sprockets (pedal & motor drive) for my hybrid gas and electric pedal bike and it features sealed bearings, but that's a $250. hub and wheel, but it's really sweet! That's a 38 tooth cog and 203 mm rotor shown in the photo

Rick C.

Very nice, very! But way out of my current league. Maybe next bike. Right now I’m going to seek out a good coaster break and heavy rim/spokes.

 

[indian22]

I like the Sturmey product line and have used various hubs, mainly brake units, they've offered through the years. I've only been inside one of the multi-speed hubs and that a three speed maybe 40 years ago and just observed a technician rebuilding that one. It was a loose bearing hub, but you'd need to research their product line for more up to date info on the use of sealed bearings in the newer units.

Does the 8 speed have a straight surface of sufficient diameter that a hub adapter could use for secure holding?

 

[curtisfox]

https://mbrebel.com/heavy-duty-wheels/ or Huskywheels.com .......Curt

 

[waynesdata]

https://mbrebel.com/heavy-duty-wheels/ or Huskywheels.com .......Curt

http://www.huskywheels.com/ is not working for me. Please try the link.

 

[kelly dean]

i cant get that link either

 

[kelly dean]

id look for a wheel disc capable i really dont like coaster brakes

 

[waynesdata]

id look for a wheel disc capable i really dont like coaster brakes

I am going jack shaft because rear disc is a design goal this build.

 

[curtisfox]

http://www.huskybicycles.com/mm5/merchant.mvc?Store_Code=hb&Screen=CTGY&Category_Code=26w

 

[indian22]

Psychdoc's building on a budget and there's just so much he can justify at this point. Now if he changes his mind or hits the lotto, whatever, then our likes might become his reality, but until he tells us differently the coaster brake is what will work and is hopefully in his price range.

Rick C.