We use a Yeti designed collet system and alloy pivot axles that minimize the amount of hardware needed to assemble the frame. We also employ custom Ti bolts and hardware for mounting the shock and anywhere we can because who doesn't love a little Ti! Maintenance is an important part of keeping your bike running smoothly. If you ride your bike as much as we do we recommend a complete rebuild every year or so. We also highly recommend you have your local Yeti dealer take care of the service but offer this complete hardware kit for those who prefer to do their own work.