We offer a few different brands of springs, with different advantages to each. Our own home-grown Teknik Motorsport springs are our pride and joy, and they are made to our own specifications, so we offer our lifetime guarantee. We offer them at a very reasonable price, but we only have them in a limited range (mostly just the most popular late model offroad bikes). Some applications need custom spacers cut, and for that reason, they are best for people who are handy with tools and know what they are doing. We import HiCalibre Springs from the best suppliers in the USA and Europe. They offer a much broader range of springs, covering just about any motorcycle suspension spring you can imagine. Whenever we get custom made one-off springs for an oddball bike, HiCalibre supply them. They are however a little more expensive because they are only manufactured in smaller runs. They are perfect for people who need a special spring for an older or rarer bike. We also offer springs from Yacugar Suspension in Holland, and they cover some of the more obscure European models that our other brands don't. The big deal though is that they also often come in some specialist formats such as progressive fork springs or shortened lowering springs that just aren't available from other manufacturers. We only really recommend these shortened springs or progressive fork springs for people who are well versed in suspension mods, because you need to make changes to the rest of your setup to accommodate them.