-14%
Sold out
Clutch Masters Clutch Masters BMW Flywheel Friction Lock
Click to zoom in

Clutch Masters BMW Flywheel Friction Lock

CLMCM-140-FFL
CM-140-FFL
Flywheels
Out of stock
$ 79.95 $ 67.96

SKU: CM-140-FFL

Clutch Masters CM-140-FFL Flywheel Friction Lock

The Clutch Masters CM-140-FFL Flywheel Friction Lock installs between the flywheel and crankshaft on compatible BMW vehicles. It uses a nickel-coated steel substrate with embedded diamond particles from 3M to bite into both surfaces and prevent loosening. This setup handles up to 5 times higher shear forces and transmits up to 5 times higher torque than standard setups without other changes.

Key Features

  • Diamond Grip Technology: Partially embedded diamond particles bite into flywheel and crank surfaces for secure hold
  • Thin Profile: Installed thickness of 0.006 to 0.009 inches maintains original assembly spacing
  • Reusable Design: Easy to install and can be reused after disassembly
  • Crank Protection: Adds hard steel layer to reduce risk of flywheel fretting damage to the crankshaft
  • High Torque Capacity: Proven to manage 5 times the shear force and torque of conventional systems
  • 3M Engineered: Developed with global engineering partner 3M for flywheel specific applications

Specifications

Detail Value
Brand Clutch Masters
Type Flywheel Friction Lock
Compatibility Multiple BMW models including 530i, M3, 535i, X5, Z3 and others from 1975-2016
Thickness 0.006 inch to 0.009 inch
Country of Origin United States
Warranty Manufacturer limited warranty

Whats Included

  • One Flywheel Friction Lock shim
  • Installation instructions

Product Notes

  • Fits listed BMW applications with manual transmissions and high power builds
  • Provides added security against flywheel movement under extreme loads
  • No other modifications required for installation

This Part Fits

Year Range Make Model Notes
1975-2016 BMW 530i, M3, 535i, X5, Z3, 335i and more See full fitment list for exact applications

Why Choose Clutch Masters?

  • Partners with 3M for proven friction solutions
  • Protects expensive crankshaft components from damage
  • Simple bolt-in addition for high power BMW builds
  • Cost effective compared to crank repair after failure

Frequently Asked Questions

  • Q: What vehicles does this fit?
  • A: It fits numerous BMW models from 1975 to 2016 including 530i, M3, 535i series, X5 and Z3 variants
  • Q: How thick is the lock when installed?
  • A: It measures between 0.006 and 0.009 inches so spacing stays nearly the same
  • Q: Can it be reused?
  • A: Yes the FFL can be removed and reinstalled after disassembly

Shipping and Handling

  • Method: UPS Ground
  • Availability: In stock and ships same or next business day
  • Packaging: Small flat package in protective mailer

Request For Information

Have questions about ? Fill out the form below and we'll get back to you by the next business day.
Clutch Masters

Clutch Masters

Shop Clutch Masters at Black Ops Auto Works for performance clutch kits, FX100, FX250, FX300, FX350, FX400, FX700, FX850, FX1000 clutch systems, single disc clutches, twin disc clutches, multi-disc clutch kits, aluminum flywheels, steel flywheels, hydraulic release bearings, slave cylinders, master cylinder upgrade kits, clutch lines, rebuild kits, friction discs, and manual transmission drivetrain upgrades. This collection is built for street cars, track cars, turbo builds, daily drivers, high-horsepower applications, and enthusiasts who need stronger clutch engagement, better torque capacity, and reliable power transfer. Use this Clutch Masters collection to find the right clutch upgrade by vehicle platform, power level, torque rating, disc material, flywheel type, and driving style. Organic and fiber clutch kits are strong options for street use, ceramic and puck-style clutches support higher heat and power, twin disc and multi-disc systems support more aggressive builds, and lig...

View Clutch Masters Products
Drivetrain

Drivetrain

Shop drivetrain parts and accessories at Black Ops Auto Works for differentials, axles, driveshafts, clutch kits, flywheels, flexplates, shifters, transmission components, ring and pinion gears, differential braces, differential bushings, wheel hubs, wheel bearings, U-joints, valve bodies, transmission coolers, drivetrain mounts, and performance driveline upgrades. This collection is built for street cars, drag cars, track builds, trucks, Jeeps, SUVs, high-horsepower Mopar builds, imports, European performance vehicles, and off-road applications that need stronger power delivery, durability, and reliability. Use this Drivetrain collection to find the right upgrade by vehicle platform, drivetrain layout, transmission type, power level, and product category. Differentials and ring and pinion gears support traction and gearing changes, axles and driveshafts help transfer power, clutch kits and flywheels improve manual transmission performance, transmission coolers and valve bodies supp...

View Drivetrain Products
Flywheels

Flywheels

A performance flywheel reduces rotational mass, allowing the engine to rev faster and respond more quickly to throttle input. Lightweight flywheels are a popular upgrade for track builds and sport driving applications where improved throttle response matters. Popular Upgrades Top-selling flywheel upgrades include lightweight aluminum flywheels for naturally aspirated four and six cylinder performance builds, single-mass flywheel conversion kits for dual-mass flywheel replacement on diesel trucks, and high-torque steel flywheels for drag racing and clutch upgrades. What is the difference between a single-mass and dual-mass flywheel? A single-mass flywheel is a solid disc that transmits engine torque directly to the clutch. A dual-mass flywheel uses two plates with a spring dampening system to absorb drivetrain vibration, which is common on diesel and direct-injection engines. Single-mass conversions are popular for performance use but may increase cabin NVH. Will a lighter flywheel a...

View Flywheels Products
Transmissions

Transmissions

Welcome to our Transmissions collection, where we bring you a curated selection of high-quality products designed to enhance your experience. Each item in this collection has been carefully chosen to ensure you receive only the best. What You Will Find in the Transmissions Collection: Innovative Designs: Products that stand out with cutting-edge technology and usability. Quality Assurance: Each item is vetted for performance and durability. Variety of Choices: A diverse range of products to meet your specific needs. Expert Recommendations: Handpicked by professionals to ensure top-notch quality.   Why Choose Our Transmissions Products? Our Transmissions products are not just about functionality; they are about elevating your overall experience. Here’s why you should explore this collection: Enhanced Performance: Each product is designed to maximize efficiency and effectiveness. Customer Satisfaction: We prioritize your needs and feedback to ensure every product exceeds exp...

View Transmissions Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×