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Stevemcnalls and I went for a walk at lunchtime in Edinburgh and found a (very) old S-A 3-sp wheel, minus cog and rusted to hell. I took it home, poor old thing never did anyone any harm... After half a bottle of Tesco's finest lube, lots of hammering and scraping enormous lumps of rusty grot off, I got it to bits.
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There's one tiny bit that's broken - you know the rod on the little chain that screws into the hollow axle? Well it screws into the "axle key" - another rod that slides along a groove in the axle and controls where the sprung clutch sits. And the axle key is snapped in half. So, it should all work now except for that. Even the pawls are sort of OK. A bit more "tough love" and they'll be OK too. Pity about the axle key...
But wait! For £1.22 plus postage: [url] http://www.sjscycles.co.uk/src/froogle/product-Sturmey-Archer-Sturmey-Archer-Axle-Key--HSA124-19127.htm [/url]
Ah-ha!
The whole thing's built like an old Volvo - everything comes apart once you know how, and you can get every bit spare it seems.
Sprockets appear to be a whopping £1.83 [url] http://www.sjscycles.co.uk/src/froogle/product-Sturmey-Archer-Sturmey-Archer-16T-Sprocket--1-8-Flat--Black--HSL716-19325.htm [/url].
I presume I need a lockring to hold the sprocket on... and an adjuster for the indicator chain, and a shifter of some kind... I think they make gripshift-style ones now.
What pointless, cheap fun =)
I'll ride it round Glentress if I get it going!
Cheers, al.
brilliant. You'll end up spending about 6 quid for the whole project. Respect.
I love this kind of mechageekery 😀
Very impressed. Have you thought about singlespeeding it?
... and here's the full-on instructions. [url] http://www.hadland.me.uk/aw.pdf [/url]
Marvellous. =)
al.
I've got one in the garage to fix. Its only running 2 gears at the mo. There are some instructions on the Sheldon Brown website to convert it to 2 speed fixed with a bit of machining involved, so may try that in the long run and run it on this:
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I had one one on my Brompton...ruled around Leigh Woods and far away...
Brilliant eningeering...nice work there. They even do a fixed hub gear too.
Sturmey Archer 3 speeds always bring back memories of gears slipping just when you least expect it.
The new hubs do not slip - improved design and better bits.
nice one Alan, I used to love the old 3 speed Sturmey Archer gears that I had on my Raleigh 'racer' as a lad which was converted with wide 'tracker' handlebars a year or so later.
I rode that for about six years, never serviced it once and can't really remember even oiling the chain but nothing ever broke and it shifted the same at the end as it had on day one
They made us strip and rebuild sturmeys as part of our training that brings back memories.
My road bike has a 3 speed S-A hub. Lovely 🙂