I also have in my possession, a relatively rare threaded Sturmey Archer driver from before the war. This takes a threaded track sprocket rather than a splined sprocket like the later AW hub. It will also take a thread on freewheel, so I've been considering a triple on the front, a 5 or 6 speed block on the back to give me potentially 54 gears. Completely pointless and cables everywhere but I'd like to give it a go just for fun!
Mixing hub gears and triple chain ring
- Thread starter Night Train
- Start date
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Mad at urage
New Member
- Location
- Just N of Cardiff
Completely pointless? No ...I wonder what range ratios you could get out of it
?
A quick play with Sheldon's gear calculator shows that a 28, 42, 52 triple with 14-28 block would give a range of 20.3" to 134.1" with one seriously confusing shift pattern
Mad at urage
New Member
- Location
- Just N of Cardiff
54 gears yielding how many actually different ones? I mean 20.3 to 134.1 has got to be a temptation, hasn't it?
Edit: What's the average gap? Could you make it reasonably consistent?
Edit: What's the average gap? Could you make it reasonably consistent?
Judge for yourself:
I could probably play around with sprocket and chainring sizes but don't have the time just at the moment.
MacB
Lover of things that come in 3's
- Location
- Farnborough, Hampshire
I like your style, to make it even more fun you should put front shifting on the right and rear on the left, oh and use a rapid rise rear derailleur
- Location
- The TerrorVortex
No, just use three gripshifters!!!
Mad at urage
New Member
- Location
- Just N of Cardiff
There's some nasty gaps there and you're right, it's "seriously confusing". Glad I don't have that to sort out! I'm afraid that you have to build it now the concept has been announced
- Location
- The TerrorVortex
You'll run out of hands eventually. And handlebars.
Quite a saving on bar tape though.
Quite a saving on bar tape though.
Arch
Married to Night Train
- Location
- Salford, UK
So, that's one on the left, one on the right and... Where do you put the other one!?
Bensbikespares
New Member
Thats why my friend, insted of getting a triple ring crank set you just get
Crank arms with or without rings and then change them insted of 3/32 get new chainrings 1/8 (i think) and it should work?? its upto you wont it just be easier to get a 5 or 6 speed and put a compact crank on it??
Crank arms with or without rings and then change them insted of 3/32 get new chainrings 1/8 (i think) and it should work?? its upto you wont it just be easier to get a 5 or 6 speed and put a compact crank on it??
Bensbikespares
New Member
Thats why my friend, insted of getting a triple ring crank set you just get
Crank arms with or without rings and then change them insted of 3/32 get new chainrings 1/8 (i think) and it should work?? its upto you wont it just be easier to get a 5 or 6 speed and put a compact crank on it??
Crank arms with or without rings and then change them insted of 3/32 get new chainrings 1/8 (i think) and it should work?? its upto you wont it just be easier to get a 5 or 6 speed and put a compact crank on it??
OP
OP
Night Train
Maker of Things
- Location
- Greater Manchester
Blimey!
I'm going to have to read this thread very carefully a few times now.
I do have a crankset with four chain rings on it to get a few more gars out of it. Not sure if it will go beyond the recommended 2:1 ratio though.
Thanks for all the replies, I'd better get building. But first I need to acquire the hub gear and swork out the ratios in it.
I'm going to have to read this thread very carefully a few times now.
I do have a crankset with four chain rings on it to get a few more gars out of it. Not sure if it will go beyond the recommended 2:1 ratio though.
Thanks for all the replies, I'd better get building. But first I need to acquire the hub gear and swork out the ratios in it.
