W11 Lightweight Flywheel - R52/R53 Cooper S/JCW

Product Details

The factory dual-mass flywheel in W11-powered MINI Coopers was designed with comfort in mind—minimizing drivetrain vibration and delivering smoother shifts. However, this focus on refinement comes at a performance cost. The hefty 27 lbs. of rotational mass dulls throttle response, slows acceleration, and makes rev-matching more difficult. Dual-mass flywheels are also known to be less reliable in tuned or modified setups and can be expensive to replace when they fail.

ECS Tuning developed their Lightweight Single-Mass Flywheel to address these issues with a performance-focused alternative. Weighing in at just 17 lbs., this flywheel sheds nearly 10 lbs. of rotating mass compared to the OEM unit—transforming throttle response, acceleration, and clutch feel for a more engaging and dynamic driving experience.

**This flywheel is to match with a factory type or aftermarket NON Dampened clutch kit!** MINIs factory set up engagement is dampened by the dual mass flywheel. This will be a little more aggressive engagement of the clutch over the stock factory set up as they system in not dampened!! Can be used from daily to the track days.

Key Features:

• Manufactured from 4140 Chromoly Steel
  • Heat-treated and tempered for exceptional strength, wear resistance, and thermal stability.
• Optimized Hardness (HRC 28–32)
  • Ensures consistent performance and durability under extreme conditions.
• Precision-Balanced to G16 Standard (175 g-mm)
  • Exceeds OEM balance requirements for smooth, high-RPM operation.
• Black Oxide Finish
  • Provides effective corrosion resistance and a sleek appearance.
• SFI 1.1 Certified
  • Validated for safe use in high-performance and racing environments.
• Direct Fit
  • Engineered to work seamlessly with OE-style clutch kits designed for the W11 engine architecture.

Performance Benefits:

• OEM Flywheel Weight: 27 lbs
• ECS Lightweight Flywheel Weight: 17 lbs

This significant weight reduction results in:

• Sharper throttle response
• Faster engine revs and acceleration
• Improved clutch engagement and feel
• Increased performance potential for modified vehicles

OEM & Aftermarket Compatibility:

• Replaces OE Flywheel #: 21207532057
• Compatible Clutch Kits:
  • MINI OE: 21207551384
  • Spec: SB001, SB003
  • Clutch Masters: 03050HD00R

Recommended Hardware:

• Flywheel Bolts: 11227560579 (Qty 8)
• Pressure Plate Bolts: 21207520449 (Qty 6)

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