They were very hard to fit, until you realise you really have to put a lot of pressure on the spring and bend it to get them on, once fitted they work well I don’t feel like my knees are above the seat hen standing and gives more control. A set of instructions or a link on the website with an install video would be handy. Fitted on a 24 gasgas ec350f. Rider 6,2” size 11 fox instincts