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The Yamaha MT09 / Tracer / XSR900 are a great engine at a great price! How did Yamaha make a bike so good so cheap? They left the suspension out of the "great" and went budget.
We have put all the MT09 derivatives together here because although they have different bodies, different displays, different details, and even LOOK like they have different suspension setups, they are all exactly the same as far as suspension components. The suspension is all the same length, all the same part numbers.
Stock forks and shock are KYB. It's pretty bottom end components but it's still KYB so it's not a disaster. We suspect part of the problem with the MT09 in all of it's forms, is the confusion over what the bike is. Sportsbike/Sports Tourer/Naked/Streetfighter. This seems to have caused the R&D Dept at Yamaha some confusion as we ended up with suspension so soft on the MT09. After some long nights dyno testing the fork and shock we have answers.
Have a look at our MT09 upgrade package.
Fork Revalve and Service
As much as you read forums saying the stock fork and shock is junk, its not really true. It's still KYB, so it's not junk. The fork only has one cartridge doing all the work so while it's a little odd, we have got some good dyno and road testing results.
We make the stock KYB Shock rebuild-able by putting a service port in and it works well. Then we Revalve and Rebuild it for how you intend to use your bike and dyno test it to make sure it is spot on. We don't change shock springs for riders in the 75 - 100 kg range, as the stock items are OK, what the shock is lacking is damping. If you are heavier than this and need springs we'd suggest moving to an aftermarket shock as its not economical to rework the stock shock that much.