Features internally adjustable travel chip: 9deg factory setting. Included 6Adeg and 12Adeg travel chips are installable to tune for more bike and terrain types Reduces the negative effects of chain growth on suspension performance Re-engineered impact, longevity, and contamination resistance Requires a 104 BCD chainring. Fits 32-36t chainrings Chainring and bolts not included 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 Ochain E B1 Configuration 1x Interface Bosch 3/4 55mm Chainline BCD 4x104mm Color Black