I did a little more searching for brake lines today and made some interesting progress.
I found this listing for a complete set of Braided Brake lines for a total of $188 AUD deliverd for the complete set front and rear. 3 hoses front and one rear. The strange thing was that it stated it was for the XS1100 S 1981-1984.
I messaged the seller to query the manufacture years and received this response
"
This listing is for the XS1100 S model which had standard front brakes, ie. one top hose from the master cylinder to the splitter and two lower hoses from the splitter to the calipers. This model was manufactured between 81-84 therefore ny listing is correct.
The earlier model of the XS1100 is listed as item no 371148039094. This model had front anti dive brake hoses fitted as standard which have the two extra anti dive hoses in the kit making 5 in total for the front.
"
The seller was obviously confident of the info and I now notice other brands including Hel list on Ebay with the same info. So it seems the response Jonesy got may be correct at least for the UK models ? There is not a lot of info online but it seems they push fluid into the front shocks to stop the front diving under braking (two extra hoses)
Who can clear up our ignorance of this international model information?
Well it seems the conclusion is that this listing has the hoses we need without the anti dive brakes but retains the three piece original setup and slightly modified single hose rear.
CP Racetec stands for Cobra Performance Brake Lines, Racetec there is not a lot of customer feedback on them but what is there is good and it seems they are actually Hel lines sold under another name. Or maybe to say they use all Hel Components but put it together themselves is a more accurate explination of the product?
From Cobra Performance Brake Lines
"
We approached Simon Lane at Hel performance who we decided were the best in the business. They only use grade 303 stainless steel in all their brake fittings. We produce our lines under licence to them using their quality products under our own brand of Cobra Performance."
Think I will give them a go now just to find out wether it is worth the postage savings to order two sets or if I should just order mine as a guinea pig for Jonesy
Oh and here is the listing
http://www.ebay.com.au/itm/Yamaha-XS1100-S-CP-Racetec-front-rear-stainless-brake-line-hose-kit-1981-1984-/371232380118?pt=LH_DefaultDomain_3&hash=item566f2c94d6