Its also worth having a read of the facts below which were only posted a couple of weeks ago.........................
On the subject of the ZX Tensioner, it is a very touchy and widely debated subject, but please let me make you aware of a few facts (not opinions or maybe's).
I have owned over ten 1300's in the last 40 years and maintained another two for a good friend and numerous others for other owners too.
Until around 12 years ago, every 1300 I bought had the original standard Tensioner fitted (as the ZX Tensioner Mod was not established before that)..........and the rubber guide wheel on at least 3 of them was vey badly worn or had disintegrated.........with the Standard Tensioner fitted. This was also the case with at least one other I worked on that also had the standard tensioner fitted. The bikes all had relatively low mileages.
I have fitted the ZX Tensioner to every 1300 I have bought over the last 12 years including the one I own now and the other two I maintain for my friend, and NONE of them have had any issues or show any signs of wear on any of the idler gears or rubber guide wheels.
So, this FEAR of the ZX Tensioner doing damage or creating premature wear is all speculation and opinion and to date...............not one owner I know or have heard of anywhere has provided any evidence or facts that the ZX Tensioner does any harm at all............but many have "Opinions" and many of these are "armchair" owners who either dont even own a 1300, or very rarely if ever use their own.
If you read many posts on here and many other 1300 Owner sites on this topic, people state their opinions that the "spring is too strong" or "it will wear your engine out" etc, etc, etc,.......................but show absolutely no proof of this on any 1300 fitted with the ZX Tensioner, and literally 100's or 1000's of owners have carried out and continue to carry out this modification, as will continue to do...............until conclusive evidence prooves otherwise.
This is also probably the reason why good people like Oz and Deb at Zed Parts and our friends at Z1300DE continue to supply the ZX Tensioner as a valid modification.
I will conclude by saying in my opinion, the other tensioner modification which involves modifying the standard tensioner with a back-up bolt, is a great idea and should overcome the initial problem of the badly designed tensioner and probably just as good a fix as the ZX Tensioner mod is................but dont be afraid of the ZX Tensioner until it is proven not to be a good solution, which as of today it has not been.
I will of course make all here aware of any issues or damage I am made aware of on any of the numerous 1300's I have fitted the ZX Tensioner or know of to over the last 12 years which have now covered good mileage over that period.
Pete F
UK