Three different service-kits are available for the REVIVE and DIVINE based only on the lower tube. The kits are not compatible with each other and can only be identified by the serial number (3rd and 4th digits) on the lower tube of the seatpost Service kit includes wiper, lower bushing, foam ring, c-clip R12, and 6 glide pins YB2122 and YB2123 include lower tube, upper stanchion bushing and wiper Note on lower tubes: diameter can be changed between 30.9 and 31.6mm but NOT 34.9mm. Length must stay the same as original TECH SPECS table{border-collapse:collapse;width:100%;} td{text-align:left;padding:8px;font-weight:350;} tr:nth-child(even){background-color:#f2f2f2} th{background-color:#eb212e;color:white;text-align:left;padding:8px;} .desc .specs-heading{font-size:24px;font-weight:600;padding-top:35px;border-top:3px solid #f0f0f0;display:inline-block;border-bottom:4px solid #eb212e;width:142px;margin:0;} Model Divine SL Description Service Kit V2