SIP tubeless rims are equipped with screw-on valves. In some countries, petrol stations use air pumps/compressors which make it difficult to grasp the shorter, more aesthetic 25mm valve. This is why some of our customers in the UK have problems inflating their tires at certain service stations. We therefore decided to make a 30mm version of the valve and equip the rims with it. Result: easily modified and adapted to suit your taste.