Wouldn't bother with Brook suspension above, they were a waste of time when I enquired about a rebuild for the fzs600. They wanted photos & details of the shock etc and then never replied and I came away unconvinced that they are able to do rebuilds for these shocks.
I had my shock rebuilt by ABE (All Bike Engineering) and the result was good - but ultimately the stock shock will only be good up to a point. It cost £100
I had a Wilbers and that was great but it had little adjustability and was expensive for what it was, I imagine the Nitron is similar. If you want somebody else to do all the work and do not mind the expense, it could be a good option. The price you quoted is around what I paid a couple of years ago.
Personally, what I have now is the best solution I've come across, it is a R6 shock modified to fit but involves a fair bit of work. In principle it is the same as the thou shock mod, but the R6 shock is a better unit. As below, might be worth getting in touch with Kebab!
I had my shock rebuilt by ABE (All Bike Engineering) and the result was good - but ultimately the stock shock will only be good up to a point. It cost £100
I had a Wilbers and that was great but it had little adjustability and was expensive for what it was, I imagine the Nitron is similar. If you want somebody else to do all the work and do not mind the expense, it could be a good option. The price you quoted is around what I paid a couple of years ago.
Personally, what I have now is the best solution I've come across, it is a R6 shock modified to fit but involves a fair bit of work. In principle it is the same as the thou shock mod, but the R6 shock is a better unit. As below, might be worth getting in touch with Kebab!