The N55 and S55 crank bolt is susceptible to loosening due to the engine’s natural vibrations and harmonics, meaning that with just the slightest loss of torque, your timing will slip out of correct adjustment. With potentially disastrous consequences.

The MMX Performance capture plate completely surrounds and secures the head of the OE crank bolt, making it physically impossible for it to turn or loosen. Secured to either the MMX one-piece crank hub, or the OE crank hub, the elongated slots ensure a perfect, secure installation, every time.

BMW S55 and N55 bolt torque: 100Nm initial torque plus 270 degrees.

Features:

• Single-piece design.
  
• Machined from T-6061 billet aluminium before being anodised in our trademark gloss black finish.
  
• Completely surrounds and secures the head of the OE crank bolt.
  
• Available to purchase with MMX single-piece crank hub.
  
• Complete kit with everything you need.

What’s Included:

• MMX Crank hub capture plate BMW S55 N55