Jagwire Sport Semi-Metallic Disc Brake Pads - Bulk Box For Shimano Acera M3050 Alivio M4050 Deore M515/M515-LA/M525/T615 Model=Narrow Wide Chainring You will need 6mm bolts

You will need 6mm bolts which are optimized for single ring mounting

easy component movement for low energy loss

staggered knobs provide steadfast traction without cutting down on speed

superior heel hold and a excellent foot wrapping that enhances ski control

Jagwire Sport Semi-Metallic Disc Brake Pads - Bulk Box For Shimano Acera M3050 Alivio M4050 Deore M515/M515-LA/M525/T615 Model=Narrow Wide Chainring You will need 6mm boltsThese disc brake pads fit a variety of Shimano brakes and offer industry leading brake compounds for consistent confident performance. Compound Semi Metallic Pad Shape Number 22 Backing Plate Material Steel