If you're not looking for chain retention or your bike has an integrated chain guide, you can still add some bash protection with the OneUp ISCG05 Underbash. The Underbash includes 3 different sizes of bash plate for compatibility with chainrings from 28-36T. Designed for frames with 2 ISCG05 tabs only (Evil, Rocky Mountain, etc). If your bike has three ISCG05 tabs, check with the frame manufacturer to ensure the lower tabs are strong enough for a bash application. Failure to do so could result in frame damage. FEATURES - Install without removing your crank - Single tool install and adjustment - Boost compatible - Oval Compatible - Stainless Steel hardware - Includes 3 bash plates (28-30T, 32-34T, 36T) SPECS - Weight: 68g (32-34T) - Capacity: 28-36T - Chainline: 2.5mm adjustment - Mount: ISCG05 2-Bolt ONLY - Color: Black - Material: 7075 aluminum, glass reinforced thermoplastic COMPATIBILITY - Not compatible with E-bikes