MRP 1x SL Chainguide - 28-38t, BB Mount, Aluminum Backplate Black EA Chain Retention and Bashguards

Compatible with BSA (threaded) BB shells only Aluminum back plate is strong and lightweight Works with BB/cranks using at least 2.5mm of spacers between BB shell and drive-side BB cup (Shimano, Race Face, and most SRAM systems) Guide replaces 2.5mm spacer (or 2.5mm of spacers) on BB assembly Additional spacers or parts may be required for some BB and crank models Works with 28-38t round rings (and 26-36t oval rings) 7mm of chainline adjustment 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