David Bentley said:I have a a Peugeot road bike that I bought back in 1988. I have ridden
it on an off for years with no problems. I bought a new Trek 1000
earlier this year as I got more into cycling and I intend to overhaul
the Peugeot and use it as a winter training bike (the frame is still in
very good nick).
They make excellent winter trainers, as they usually have mudguard
eyelets and clearance, and you can fit some serious winter tyres.
Quoted message said:One problem I have is that the original seat tube has the older style
attachment to the saddle which is a lot more hassle to attach a new
saddle to and adjust. I measured the original seat tube and thought it
was 25mm and managed to find a 25mm alloy seat tube , but when I took it
home it was just slightly too large, so I guess the original was
actually 24mm.
My guess would be 23.8mm, if there is a sticker on the frame somewhere
which says "Carbolite 103". I have a 1980's Peugeot Competition with
this size of seatpost.
Quoted message said:A quick google search came up with a couple of snippets of info
mentioning 24mm Peugeot seat tubes, but I can't find any site showing
that size for sale.
Not much comes up for 23.8 either.
Quoted message said:Is it at all possible to source seat tubes this size anymore? I would
like to replace the original with a new one with a microadjust head if
at all possible.
Its not going to be easy, but if you do find one somewhere and there
are more in stock, let us know. There is a slightly mad alternative
solution - get a suspension seat post with a seat clamp which fits over
the 22.2 mm end of your existing seatpost (the one I think which fits
the bill is a Kalloy Uno like the one which is eBay item 7170167316 for
the next six days or so). The clamp part of this seatpost can be
unbolted and fixed to an old fashioned style seatpost, which would
achieve what you want.
Quoted message said:The bike is a 12 speed (6 rear, 2 front) with the shifters on the
down tube. How should I go about renewing the chain/derailleurs /rear
sprockets/chainset etc (they work OK at the moment, but are original and
must have done at least 5000 miles since new). The hub bearings are
worn and the wheels are not true and I may decide to replace them also.
This is the sort of vintage of Peugeot which may have Maillard
Helicomatic transmission. Sourcing brand new replacement sprockets for
this system will be at least two of the following -
difficult/expensive/pointless. Sheldon Brown disliked the system from
the word go. I do have a late 1980's Peugeot Triathlon, which has
Helicomatic wheels which have done about 500 miles max (maybe less, but
kept indoors all that time when not in use and in exceptional condition
for their age). I am intending to upgrade this to 7 speed indexed, and
I have already got all the bits I need to do this except for the
spokes, so if you wanted to keep your bike in original specification,
I'll swap you the secondhand wheels/sprockets/chain/derailleurs plus a
new chain for the price of the spokes I need to build the replacement
wheels (should be about £30-ish for 72 stainless double butted spokes,
and a short delay while I build the wheels).
If authenticity is not your aim, then get a new set of wheels (Shimano
R550 for cheap racing wheels or Spa Cycles for cheap good hand built
touring wheels), get a seven speed cassette and spacer and (optionally
from now on - only if you want to go indexed) seven speed indexed gear
shifters and rear derailleur (eBay is good for the shifters, which are
difficult to find new). There is no real need to change the front
derailleur if it is still in good condition. This is going to cost a
fair bit, though. Ideally, you would get a seven speed wheel (so you
can dump the spacer, and not have to prise open the rear traingle by a
few mm's to fit the rear wheel, but getting quality and value for money
is difficult in a seven speed wheel. With shimano wheels, you can
usually replace the 8/9 speed freehub with a 7 speed one to achieve
this with better wheels, and some shops are getting rid of their 7
speed freehubs quite cheap (say three in a branch of Halfords the other
day for £4 each - they used to be priced around the same cost as the
web price for a complete hub).
Change 7 for 8 speed in the above and forget about spacers etc if you
want access to slightly higher quality parts, but don't mind cold
setting (or bending, as its otherwise known) the rear triangle.
Quoted message said:Any help greatly appreciated.
HTH - I like to see these old Peugeots kept going.
JimP
PS Pic of my white Peugeot Triathlon with upgraded brake levers (so
far) is at:
http://www.jimprice.dsl.pipex.com/peugeot%20triathlon.jpg
