I have the Speedymoto frame sliders. They have been crash tested and work brilliantly.
All of their products are crash tested as they use the products on their race bikes as well as other peoples.
They will not market and sell a product that does not work.
Email Christian at speedymoto, he'll hook you up.
Christian@speedymoto.comYour best source for all things .........hands down.
They also have their own axle sliders which are great.
Have a happy!