Brembo M4 Radial Front Brake Caliper - 108mm Mount

The Brembo M4 is the monoblock caliper that made radial Brembos the go-to upgrade on sportbikes, and it's a proven choice for Harley performance builds. Its one-piece body flexes less than a two-piece caliper, so you get a firmer lever and better feel. 4 pistons, 34mm Cast aluminum monoblock body (one-piece) 108mm radial mount Available as a pair or as a single left or right caliper Black or Titanium Gray finish, both with red Brembo lettering Fitment note: Stock Harley fork lowers don't have radial mounts. You'll need radial-mount forks or 108mm radial adapter brackets matched to your fork and rotor size.