T.R | Title | User | Personal Name | Date | Lines |
---|
3103.1 | How thick is yours? | IRNBRU::NIVEN | | Tue Jun 18 1996 06:53 | 16 |
| I agree - nothing wrong with a small number of well placed gears! I have a
1964 Moulton Deluxe that uses a Sturmey Archer 4 speed FW hub. I found that I
could use a Shimano 12 tooth sprocket, extracted from an old 7 speed freewheel,
by suitably grinding down the splines to match the three of the hub. This was
required because the Moulton has 16" wheels and you need either a small sprocket
or a dinner-plate chainwheel!
In addition the sprockets fit a 3/32" chain and, I am told, that you should be
able to get two, plus a spacer, on the S/A hub. Thus you could have, say, a 14
and 21 tooth sprocket with a cheap derailier and double the range of your gears.
You can also use a modern chainset.
Is the Shimano sprocket that you have 3/32" or 1/8"? Whats the smallest size they
make?
John (this was my first notes entry!)
|
3103.2 | two sprockets on 3-speed hub? | STARCH::HAGERMAN | Flames to /dev/null | Tue Jun 18 1996 10:10 | 20 |
| I don't have my catalog with me but the smallest sprocket is not that
small; probably 16 or 18 teeth. The mounting hole itself is pretty big.
The Shimano gear appears to be a bit thinner than the SA version, but
the snap ring that holds it on seemed to take up the slack. It doesn't
wobble, at least.
I don't think you could get two sprockets on there. On mine there is a
dust shield, a spacer (about 1/8"), the sprocket, and another spacer
before the retaining clip. You might be able to put the two spacers in
between a pair of sprockets.
Probably you would want to have two close sizes if you wanted to try
the two-sprocket theory. The spacing of the internal hub is pretty
wide. 2nd gear is direct, and I think that 3rd is 1.25 and 1st is .67.
If you used say an 18 and a 19 it might work. Best to work out the
ratios...
I'll stick with my three gears!
Doug.
|
3103.3 | congratulations | HERON::virenq.vbo.dec.com::HEMMINGS | Lanterne Rouge | Tue Jun 18 1996 12:28 | 17 |
| >> The spacing of the internal hub is pretty wide.
I nominate that as The Understatement Of The Year. Personally I hold the
original Sturmey WA responsible for making yer average Joe think that cycling
is hard. As you say, middle is direct, top is +25% and bottom -33% (or maybe
the other way round). This meant you got 1 gear you could ride on the flat
and 2 gears which were totally useless.
Even worse, once the cable broke, as it does on all work-bikes, and was never
replaced, the poor guy was left trolling along with a gear that would make
Big Mig's eyes pop out.
At one time, they brought out close ratio hubs which were something like + &
- 5% (ie: about 1 tooth on the back) but only the racers used them which
meant a small market and therefore no market. Anyone think this looks like
the precursor to the 42/52 x 12-19 stock racing market scenario??
|
3103.4 | the good ole days | SMURF::LARRY | | Tue Jun 18 1996 13:02 | 8 |
| I distinctly remember as a kid riding around on my English 3 speed, I'm
pretty sure it was a Sturmy Archer, and seeing these new fangled 10
speeds from France. My first though was what a waste of gears. I had
low, medium, and high. What else do you need? ... as I ride on my
carbon fiber 16 speed.
Note Tim ... this was not a complaint!
-L
|
3103.5 | | JHAXP::VULLO | Simplify & Deliver | Tue Jun 18 1996 14:49 | 13 |
| Ahh, Sturmey-Archer hubs. Right now I've got about 20 English
3-speeds: Triumphs, Raleighs, Dunelts, and Robin Hoods from about
1938 to 1971. I love these things and can't pass them up.
Over the winter I came across a Raleigh with a S-A 3-speed hub with
2 freewheels and a derailluer (sp). The bike was built in 1955.
And last night I just sold one of the world's ugliest bikes. It
also had a S-A 3-speed hub. The bike:
(Shoot, I forget how to put a <ff> in here)..
Anyway, it was a 1973 Raleigh Chopper!
-Vin
|
3103.6 | | MOVIES::WIDDOWSON | Brought to you from an F64 disk | Wed Jun 19 1996 05:21 | 5 |
| >>>Anyway, it was a 1973 Raleigh Chopper!
I *really* wanted one of those as a child. I'm glad my parents had the
good taste to not buy me one...
|
3103.7 | now a Dawes Galaxy for example | HERON::virenq.vbo.dec.com::HEMMINGS | Lanterne Rouge | Wed Jun 19 1996 07:13 | 1 |
| Fortunately in 1973 I was old enough to have a _real_ bike ...
|
3103.8 | | WMOIS::GIROUARD_C | | Wed Jun 19 1996 07:18 | 3 |
| -1 Me too, but I started working here that year :-).
Chip
|
3103.9 | actual ratios of three speed | STARCH::HAGERMAN | Flames to /dev/null | Mon Jun 24 1996 14:10 | 11 |
| I looked in detail at the hub and chainwheel on my Triumph, and found
that it has 48 teeth and that the ratios are 0.75 and 1.33. With a 22
tooth sprocket my ratios are:
1 - 42.5"
2 - 56.7"
3 - 75.4"
These work well for casual riding.
Doug.
|
3103.10 | Raleigh vs. Triumph | STARCH::HAGERMAN | Flames to /dev/null | Tue Jul 09 1996 01:43 | 13 |
| From rags to riches: I just got another 3-speed. This one's a "girl's"
frame (what's the PC way to say that?) Raleigh which cost me $3. How can
people give up such treasures??? Two questions:
1. What's the difference between a Raleigh and a Triumph? They look
identical to me, down to the lugs, except for the front forks.
2. Is it possible to somehow refurbish an old Brooks leather saddle?
The new bike has a nice women's springer seat but the leather is in
tough shape. Does Brooks still exist? I suppose if they do their seats
probably cost $100 now...
Doug.
|
3103.11 | Yes | HERON::virenq.vbo.dec.com::HEMMINGS | Lanterne Rouge | Tue Jul 09 1996 04:01 | 13 |
| Raleigh certainly do still exist as part of TI and I think Brooks is also a
part. Our UK friends could give you a location, but the web page given to me
by Steve Fuller (www.tandemseast.com) listed Brooks saddles, with prices
which is probably more useful to you in the US. As for Triumph/Raleigh etc.
it is most certainly badge-engineering.
In the good ole days, you could get leather saddles "re-blocked" which meant
they went back on the last and were given a good blast of heat and steam
before being put back on their original frame. I suspect this procedure
would now cost about 3 times that of a new saddle!!
BTW, you could say an "open" frame if you are really into not offending all
the PC loonies (now is my frame "coloured" or just plain "black" ??)
|
3103.12 | | WMOIS::GIROUARD_C | | Tue Jul 09 1996 06:53 | 1 |
| The correct esoterica is mixte frame. nnttm
|
3103.13 | | STARCH::WHALEN | Rich Whalen | Tue Jul 09 1996 07:08 | 6 |
| Actullay it's probably a "Step-through" frame. A Mixte frame is a
whole nother animal that is a compromise between a diamond frame and a
step-through. On a mixte there are two thin tubes going from where the
top tube would start, past the seat tube, and to the rear dropouts.
Rich
|
3103.14 | | WMOIS::GIROUARD_C | | Tue Jul 09 1996 09:29 | 2 |
| I believe that all contemporary references refer to the mixte as the
"girl's" frame. At least in the mags I read.
|
3103.15 | | JHAXP::VULLO | Simplify & Deliver | Tue Jul 09 1996 10:34 | 9 |
| What is wrong with the saddle? Is it badly cracked or just warped?
I've repaired many leather Brooks saddles simply by:
1) soaking them in water for a few days
2) binding them with plastic ties (rope might work, but might stain
the saddle)
3) sun drying for a few days
4) oiling
|
3103.16 | | STARCH::HAGERMAN | Flames to /dev/null | Tue Jul 09 1996 14:34 | 5 |
| The leather saddle is badly cracked. The frame is fine, but I'm afraid
that if anybody put their weight on the center of the leather part it
would break. I have some old leather grease around somewhere which I'll
try. It's not a big deal, just a shame to see such a beauty in lousy
condition...
|
3103.16 | Recycled rides | WRKSYS::FRANTZ | Dr. Awkward | Tue Oct 29 1996 15:15 | 15 |
3103.17 | welcome to the family | QUAKKS::BURTON | Jim Burton, DTN 381-0272 | Tue Oct 29 1996 15:38 | 14 |
3103.18 | | WRKSYS::FRANTZ | Dr. Awkward | Tue Oct 29 1996 16:30 | 4
|