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.Features-Aluminum back plate is strong and lightweight-Works with 32-36t round rings (and 30-34t oval rings)-4mm of chainline adjustment (without use of spacers) so adjustments can be made quickly-Works with most chainlines (including non-boost, Boost, and Super Boost)-Forefront 4-way, front-accessible setup and adjustment-Pop-Up tool-free chain access for simplified installation and drivetrain maintenance-Upper guide features TPU co-molding to silence chain contact-Requires ISCG-05 tabsItem Specifications-Chainguide Mount Type:ISCG-05-Material:Aluminum-Material:Composite-Max Tooth (teeth):36-Color:Black-Weight:105-Bashguard:No-Defined Color:Black