The MRP AMg SL chainguide eliminates dropped chains and bent chainrings. It combines a lightweight upper guide and a durable bashguard, mated to an aluminum backplate. Unlike the cheap, flexy, and rattle-prone upper guides found on other products, the AMg features our premium, stiff, silent upper guide and a tough fiber-infused bashguard.Aluminum back plate is strong and lightweightWorks with 28-32t round rings (and 26-30t oval rings)4mm of chainline adjustment (without use of spacers) so adjustments can be made quicklyWorks with most chainlines (including non-boost, Boost, and Super Boost)Forefront 4-way, front-accessible setup and adjustmentPop-Up tool-free chain access for simplified installation and drivetrain maintenanceUpper guide features TPU co-molding to silence chain contactRequires ISCG-05 tabsItem SpecificationsChainguide Mount TypeISCG-05ColorBlackDefined ColorBlackMaterialAluminumMaterialCompositeMax Tooth (teeth)32Weight109