1924 Triumph SD....question

[cardan]

Perhaps back to Triumph stirrup brakes? I hope this thread doesn't end before I learn something more about old bikes.

Looking at the extract from the illustrated parts list posted above (and thanks to John for putting it online - very interesting) it looks like 2828 screws into the underside of the handelbar lug. Is it just a conduit for the outer bowden cable? It seems so, because the usual cable stop and adjuster is a separate part which fits into the tube with the return spring. Why does 2828 exist? Perhaps with a big hole it's easier to feed the cable though the handlebar and get it to come out the big hole; then slide 2828 over the cable outer, and screw it into place to get the outer exiting the bars vertically. Does 2828 have a chamfer on the inside top to allow a "smooth" (but still sharp) bend in the cable (from vertical, to horizontal inside the bar).

Peter C seems to have all the Triumph documents - is this how it works? This was, afterall, the original question.

Cheers

Leon

[speedo]

Thanks Leon for your interest ,Peter C has been in contact with me and his information is valued . Peter seems to think that at a particular date line Triumph changed from stirrup brakes to drum brakes . May be the handle bars that we have ,as Peter suggest could be old stock that Triumph was ''Using Up'
Your theory on part number 2828 sound right . I have put another question to Peter re the valve lifter ,"Where does the cable for this enter the handle bars ''?
I dont think the subject will be taken away ,now there is some sensible content appearing !'

[cardan]

The parts list - interesting things, parts lists - tells us the change from stirrup to drum brake was 1924 for the SD. (See details of front wheels/hubs.) If there is no other exit point for the exhaust lift cable, and if it still has an inverted lever (search the parts list for clues!), I suppose the cable comes out through your threaded hole, probably with 2828 to guide it. Can anyone look at an SD to check?
Leon

[speedo]

Carden ,we have solved the problem ,a  phone call to the owner of the farm where the bike was found on the scrap heap tells us that at one time the bike was involved in a collision . The front forks were wrecked and we assume so were the handle bars . The bars that were with the remains of the bike when it was retrieved from the scrap heap are obviously not the originals ..........thanks for your interest and contribution .

[cardan]

Hold on - slow down a bit!

"The bars that were with the remains of the bike when it was retrieved from the scrap heap are obviously not the originals"
They may not be the originals, but given that they were in the same scrap heap perhaps they are. It's interesting to ponder why a set of bars from a completely different bike would be together with the almost-complete remains of another.

I know that SDs used rather "daggy" bars on some bikes, as a few years back we had a very original SD in our club (no longer here) which was fitted with these rather old-fashioned bars. There are various bars listed and illustrated in the parts list (see pages 19, 22, 23, 24), and some are fitted with "Magdyno Lamp Bracket". Are you sure that your bars are not one of the options listed as "Handlebar (Touring Pattern) complete, with "Magdyno" lamp bracket"? Before you throw them away, you might want to think about how you KNOW that they are the wrong bars.

By the way, attached is a photo, from the Yesterdays Archive http://www.yesterdays.nl/triumph-1925-model-p-710.html showing a drum-brake SD. The brake cable exits the handlebar exactly where your "mystery thread" is located, and I fancy I can also see the cable guide 2828 screwed in to said thread... The exhaust lifter cable exits through a hole drilled in the handlebar - perhaps someone brazed this up on your bars prior to plating? (Try not to rely on photos of restored bikes if you can avoid it...)

Cheers

Leon

[speedo]

Cardan.....I can only say '' I dunno'' . You can find many strange things on an Australian farm scrap heap .I hesitate to say that in the same area I found a Triumph frame ,roughly same vintage ,no handlebars . Why I hesitate to tell you is that among other projects I am using this frame and forks to make a replica ''Indian Board Track '' bike . Now purists will shudder but what the hell !
On this same scrap heap was a complete 1900's IHC ''Famous '' engine and nearby a Pasley hot tube engine ....as I said many strange an exotic things can be found
Regards and thanks for your continuing interest .