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.

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)

Experience a significant reduction in clutch chatter with the new Dual Mass Flywheel. This system eases the effort required during gear changes, providing a smoother shifting experience. Should any wear be detected during a clutch replacement, these systems, typically unresurfaced, are recommended for replacement. Featuring a 228mm diameter, this flywheel introduces a whole new shifting dimension to your car.

Benefits:

• Minimizes excessive clutch chatter
• Eases gear shifting effort
• Recommended replacement during clutch change if wear is identified
• Enhances shifting experience with a 228mm diameter

Valeo Dual Mass Flywheel Conversion Kit for MINI Cooper S/JCW

Elevate your MINI's performance with the Valeo dual mass flywheel conversion kit. This comprehensive kit includes a solid flywheel, pressure plate, clutch disc, throw-out bearing, and more. Notably, it replaces the OE dual mass flywheel for enhanced performance.

If you're missing any hardware, don't worry. Valeo ensures your satisfaction by replacing missing items with your order number. They are also working on an improved box design to prevent damage during shipping.

Designed for the R53/R52 Cooper S/JCW with W11 engines (Supercharged Engines), this kit is not compatible with Gen 2 MINIs (R56) with N14/N18+ Turbo Engines. For an exclusive ECS Tuning kit with extra seals, explore ES3469345.

Upgrade to the single mass setup for cost-efficiency, serviceability, simplicity, and enhanced driveability. Valeo's conversion kit maintains clutch and flywheel weight for quiet and easy driving.

This kit includes a replacement flywheel, clutch disc, pressure plate, release bearing, and more. Please note that a lightened single mass flywheel may result in some "NVH" or "chatter" during operation, which can be influenced by accompanying modifications.

For complete install kits, discover ES3469345 and ES4067131, exclusively at ECS Tuning.

Installation Details:

• Flywheel bolts (M10x19.5): Tightening torque 90 Nm, Thread lock red.
• Pressure plate (M7x26): Tightening torque 20 Nm.

Restore your Mini's performance with this comprehensive Clutch Kit from MINI. If you've noticed clutch slippage despite the slave cylinder and pedal appearing fine, it's time for a replacement. This kit includes a clutch disc, pressure plate, release bearing, and 6 ASA bolts (M8x16-8.8), ensuring your Mini returns to optimal performance.

Benefits:

• Comprehensive clutch replacement kit
• Restores Mini's performance
• Includes clutch disc, pressure plate, release bearing, and bolts

Upgrade Your Clutch with the Performance Clutch Installation Kit

Elevate your vehicle's clutch performance with the all-inclusive Performance Clutch Installation Kit, tailor-made for a stage one clutch upgrade. This kit incorporates a sturdy steel flywheel and Clutch Masters' FX100 (Stage I) components.

• High-Performance Street System
• 70% Increased Holding Capacity Over Stock
• Heavy-Duty Reinforced Pressure Plate
• Hi-Leverage™ Pressure Ring Design
• Sprung Hub/Cushioned Disc
• Steel Backed Organic Friction Material

Experience improved clutch performance with the FX100, known for its robust design and enhanced holding capacity. This kit is perfect for street applications, providing reliable clutch performance. Included in the package are the Pressure Plate, Clutch Disc, Throw-out Bearing (if applicable), Pilot Bearing or Bushing (if applicable), and an Alignment Tool.

This performance clutch installation kit is specially designed for a stage one clutch upgrade, providing a comprehensive set of components essential for optimized performance.

Key Features:

• FX100 (Stage I) Clutch: Perfect for high-performance street use
• Increased Holding Capacity: Up to 70% over stock
• Heavy-Duty Reinforced Pressure Plate: Ensures exceptional durability
• Hi-Leverage™ Pressure Ring Design: Enhances overall clutch performance
• Sprung Hub/Cushioned Disc: Offers smooth and controlled engagement
• Steel Backed Organic Friction Material: Dampened disc specifically designed for single mass flywheel

All Clutch Masters clutch kits contain essential components such as a pressure plate, clutch disc, throw-out bearing (if applicable), pilot bearing or bushing (if applicable), and alignment tool.

Upgrade your MINI Cooper S or JCW 2.0L with the Lightweight Aluminum Flywheel weighing just 14 lbs from Clutch Masters. Engineered for performance, this lightweight flywheel enhances throttle response and overall driving experience.

• Lightweight design improves engine response
• Specifically designed for MINI Cooper S and JCW 2.0L models
• Enhances overall driving performance
• Durable aluminum construction ensures longevity