Mini Cooper R55 R56 R58 R59 R60 Fluid Damper Harmonic Balancer SFI 18.1 The right choice is critical

The right choice is critical for your engine and your wallet--choose Speedmaster iron distributor gears

the stock accessories may not run at the same speed as originally designed

Unlike our competitors that only use 3 or 4 pinion gears

Speedmaster valve locks are wider-angled 10 degree locks

Mini Cooper R55 R56 R58 R59 R60 Fluid Damper Harmonic Balancer SFI 18.1 The right choice is criticalUsing only three parts a laser welded sealed housing, an internal inertia ring, and highly viscous silicone fluid between the two these SFI approved Fluid dampers can control all crankshaft vibration, not just a limited frequency range. As a result, you get reduced wear on the main bearings and timing gear, more stable valvetrain operation, and less chance of crank failure.