I put these and the Tusk aluminum hand guards on my DRZ400S and they were a perfect fit. These Maier protectors fit the Tusk aluminum guards like they were designed together. These are not as sleek and racy as some covers but are a good size for wind protection. They are very durable too. I've dumped it onto both sides and it has all worked well to protect my hands and levers. I recommend them, even though they are not cheap. They work great in conjunction with Tusk grip heaters, if you like to ride in the cold.