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YK-FW05
YAKUO
The High Speed Free Wheel is a precision-engineered drivetrain component designed to optimize power transfer efficiency and minimize friction in bicycles and motorcycles. Crafted through advanced metallurgical processes and computer-aided design, this free wheel features a high engagement mechanism and ultra-durable construction that ensures seamless acceleration, smooth deceleration, and consistent performance across diverse riding conditions—from competitive racing to daily commuting.
Material: Heat-treated 4130 chromoly steel driver for high torque resistance; 8620 alloy steel outer gear for wear resistance
Engagement: 72 points (5°) of instantaneous engagement, minimizing lag between pedaling input and wheel movement
Compatibility: Designed for 1.375" x 24 TPI (threads per inch) threaded hubs, the industry standard for most adult bicycles
Chain Width: Optimized for 3/32" bicycle chains, ensuring precise alignment and efficient power transfer
Weight: 280 g, balancing lightweight performance with structural strength
High Engagement Mechanism
The innovative 72-point design creates an extremely low 5° engagement angle, meaning the free wheel engages with the hub after just 5° of pedal rotation—significantly faster than standard 18-point (20°) or 36-point (10°) designs. This rapid engagement minimizes power loss during acceleration, making it ideal for aggressive riding styles, competitive racing, or technical trail navigation where quick bursts of speed are essential.
Low Friction Performance
Equipped with high-precision ABEC-5 bearings and lubricated with mobil XHP 222 high-temperature grease, the free wheel ensures exceptionally smooth rotation with minimal energy loss. The sealed bearing design prevents contamination from dirt, water, and grit, maintaining low friction even in harsh riding environments.
Industrial-Grade Durable Construction
The outer gear undergoes an electroless nickel-plating process that creates a hard, corrosion-resistant surface capable of withstanding salt, moisture, and regular exposure to road grime. The heat-treated steel driver is engineered to withstand extreme torque loads without deformation, while precision machining ensures consistent tooth spacing for reliable chain engagement.
User-Serviceable Rebuildable Design
Unlike sealed non-serviceable free wheels, this model features a rebuildable structure that allows users to replace worn bearings, pawls, and springs—extending the component’s lifespan and reducing long-term maintenance costs. A comprehensive service kit with replacement parts is available separately for DIY maintenance.
Versatile Compatibility
The free wheel fits seamlessly with single-speed and fixed-gear bikes, as well as select motorcycles with compatible threaded hubs. It works with most standard 3/32" chains and is compatible with popular hub brands including Shimano, White Industries, Chris King, and Surly.
Road Bicycles: Enhances speed and power efficiency for competitive road racers and time trial cyclists, where every watt of power transfer matters.
Mountain Bikes: Provides reliable instant engagement for technical trail riding, allowing riders to quickly accelerate out of corners or over obstacles.
Motorcycles: Improves acceleration response in dirt bikes and cruisers with compatible drivetrains, enhancing control during off-road adventures or highway overtakes.
Q: How does the 72-point engagement differ from standard free wheels?
A: With 72 engagement points, the free wheel engages 4x faster than 18-point designs and 2x faster than 36-point models, resulting in faster response to pedal input and smoother transitions between coasting and acceleration—critical for competitive performance and technical riding.
Q: Can I use this free wheel with a 1/8" chain?
A: No, this free wheel is specifically designed for 3/32" chains. Using a 1/8" chain (wider by 1.5mm) will cause improper alignment, increased wear on both the chain and free wheel teeth, and potential chain slippage during high-torque situations.
Q: Is the free wheel compatible with Shimano hubs?
A: Yes, it fits most standard 1.375" x 24 TPI threaded hubs, including Shimano, White Industries, Chris King, and other major manufacturers. It is not compatible with cassette-style hubs or through-axle designs.
The High Speed Free Wheel is a precision-engineered drivetrain component designed to optimize power transfer efficiency and minimize friction in bicycles and motorcycles. Crafted through advanced metallurgical processes and computer-aided design, this free wheel features a high engagement mechanism and ultra-durable construction that ensures seamless acceleration, smooth deceleration, and consistent performance across diverse riding conditions—from competitive racing to daily commuting.
Material: Heat-treated 4130 chromoly steel driver for high torque resistance; 8620 alloy steel outer gear for wear resistance
Engagement: 72 points (5°) of instantaneous engagement, minimizing lag between pedaling input and wheel movement
Compatibility: Designed for 1.375" x 24 TPI (threads per inch) threaded hubs, the industry standard for most adult bicycles
Chain Width: Optimized for 3/32" bicycle chains, ensuring precise alignment and efficient power transfer
Weight: 280 g, balancing lightweight performance with structural strength
High Engagement Mechanism
The innovative 72-point design creates an extremely low 5° engagement angle, meaning the free wheel engages with the hub after just 5° of pedal rotation—significantly faster than standard 18-point (20°) or 36-point (10°) designs. This rapid engagement minimizes power loss during acceleration, making it ideal for aggressive riding styles, competitive racing, or technical trail navigation where quick bursts of speed are essential.
Low Friction Performance
Equipped with high-precision ABEC-5 bearings and lubricated with mobil XHP 222 high-temperature grease, the free wheel ensures exceptionally smooth rotation with minimal energy loss. The sealed bearing design prevents contamination from dirt, water, and grit, maintaining low friction even in harsh riding environments.
Industrial-Grade Durable Construction
The outer gear undergoes an electroless nickel-plating process that creates a hard, corrosion-resistant surface capable of withstanding salt, moisture, and regular exposure to road grime. The heat-treated steel driver is engineered to withstand extreme torque loads without deformation, while precision machining ensures consistent tooth spacing for reliable chain engagement.
User-Serviceable Rebuildable Design
Unlike sealed non-serviceable free wheels, this model features a rebuildable structure that allows users to replace worn bearings, pawls, and springs—extending the component’s lifespan and reducing long-term maintenance costs. A comprehensive service kit with replacement parts is available separately for DIY maintenance.
Versatile Compatibility
The free wheel fits seamlessly with single-speed and fixed-gear bikes, as well as select motorcycles with compatible threaded hubs. It works with most standard 3/32" chains and is compatible with popular hub brands including Shimano, White Industries, Chris King, and Surly.
Road Bicycles: Enhances speed and power efficiency for competitive road racers and time trial cyclists, where every watt of power transfer matters.
Mountain Bikes: Provides reliable instant engagement for technical trail riding, allowing riders to quickly accelerate out of corners or over obstacles.
Motorcycles: Improves acceleration response in dirt bikes and cruisers with compatible drivetrains, enhancing control during off-road adventures or highway overtakes.
Q: How does the 72-point engagement differ from standard free wheels?
A: With 72 engagement points, the free wheel engages 4x faster than 18-point designs and 2x faster than 36-point models, resulting in faster response to pedal input and smoother transitions between coasting and acceleration—critical for competitive performance and technical riding.
Q: Can I use this free wheel with a 1/8" chain?
A: No, this free wheel is specifically designed for 3/32" chains. Using a 1/8" chain (wider by 1.5mm) will cause improper alignment, increased wear on both the chain and free wheel teeth, and potential chain slippage during high-torque situations.
Q: Is the free wheel compatible with Shimano hubs?
A: Yes, it fits most standard 1.375" x 24 TPI threaded hubs, including Shimano, White Industries, Chris King, and other major manufacturers. It is not compatible with cassette-style hubs or through-axle designs.
