I can thoroughly endorse the Tucano muffs. This is my second winter on the Ten with the muffs and they are fantastic. I have Oxford heated grips and when cruising at motorway speeds usually have them on minimum. The wind protection is excellent. I have put some KTM handguards on which I had to trim to fit underneath the muffs but they support the front part of the muffs from pressing on the levers. I also put an old pair of SRX bar end weights on which in conjunction with cutting off the grommet in the muffs makes puttng on/ taking off very esy indeed. The muffs are so good that I also cut out some of the furry lining as I don't need it. I cannot recommend this product more, especially as I paid �60 originally!