The MRP AMg SLR chainguide eliminates dropped chains and bent chainrings. It combines a lightweight upper guide and a durable bashguard mated to a carbon fiber backplate. Unlike the cheap flexy and rattle-prone upper guides found on other products the AMg features a premium stiff silent upper guide and a tough fiber-infused bashguard. 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;} Color Black Weight 90g Chainguide Mount Type ISCG-05 Material Composite Defined Color Black Max Tooth (teeth) 32 Tooth Range 28-32T Backplate Material Carbon