Rag joint or hub adapter the only options?

PsychDoc

Member
Sep 8, 2019
69
73
18
53
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
 
  • Like
Reactions: indian22

waynesdata

Active Member
Jul 10, 2017
254
106
43
42
@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.
 
  • Like
Reactions: indian22

indian22

Well-Known Member
Dec 31, 2014
3,738
4,273
113
Oklahoma
@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

Member
Sep 8, 2019
69
73
18
53
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

Well-Known Member
Dec 31, 2014
3,738
4,273
113
Oklahoma
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

Active Member
Jul 10, 2017
254
106
43
42
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

Active Member
Jul 10, 2017
254
106
43
42
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

Well-Known Member
Dec 31, 2014
3,738
4,273
113
Oklahoma
billet hub 3.jpg
hybrid hub 1.jpg

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.
 
Last edited:
  • Like
Reactions: waynesdata

PsychDoc

Member
Sep 8, 2019
69
73
18
53
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.
 
  • Like
Reactions: indian22

indian22

Well-Known Member
Dec 31, 2014
3,738
4,273
113
Oklahoma
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?
 

indian22

Well-Known Member
Dec 31, 2014
3,738
4,273
113
Oklahoma
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.
 
  • Like
Reactions: PsychDoc