Universal Cycles -- MRP 1x SL Alloy Chain Guides [MR-20-9-711, MR-20-9-710, MR-20-9-715]

One dropped chain is one too many. Eliminate dropped chains forever, so you can ride without interruption. The MRP 1x SL chainguide incorporates a stiff aluminum backplate and easy-to-use setup and adjustment features.Compatible with BSA (threaded) BB shells onlyAluminum back plate is strong and lightweightWorks 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 assemblyAdditional spacers or parts may be required for some BB and crank modelsWorks with 28-38t round rings (and 26-36t oval rings)7mm of chainline adjustment 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 contactItem SpecificationsChainguide Mount TypeBB Cup MountColorBlackDefined ColorBlackMaterialAluminumMaterialCompositeMax Tooth (teeth)38Weight40