Mounts directly to Bosch motors Tool-less upper guide flip Back plate is constructed from 7075 aluminum, top guide is made of glass reinforced thermoplastic Top guides are available in 6 colors (sold separately) Installation instructions: can.oneupcomponents.com/pages/e-bike-steps-ep8-chainguide-install-instructions 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 E-Chainguide Range 32-38t Mount Bosch Motors Color Black Weight 45g