YCF 43T Aluminum Sprocket with 5-Bolt Fixation for Select YCF Bikes (2024-2025) - (Green)

The YCF 43T Aluminum Sprocket, built with a 5-bolt fixation for precise fitment on select YCF bikes (2024-2025). This sprocket is designed for riders who demand reliable performance and long-term durability from their drivetrain components. Constructed from high-quality aluminum alloy, this sprocket delivers an ideal balance of lightweight efficiency and structural strength.

The 43-tooth design provides smooth, consistent power delivery, perfect for trail, training, or race use. The 5-bolt fixation ensures a secure and stable fit, minimizing vibration and reducing maintenance needs. Finished in green for a clean, professional look, this sprocket helps maintain proper chain alignment while resisting corrosion and dirt buildup, even in harsh conditions.

Features & Benefits
Precision-machined aluminum construction for durability and reduced weight
43-tooth configuration balances speed and torque for versatile riding
5-bolt design ensures a firm, vibration-free mount
Corrosion-resistant finish increases durability and appearance
Ideal for replacement or sprocket upgrade
Supports consistent power transfer and long sprocket life
Hassle-free installation

What's Included
(1) YCF 43T Aluminum Sprocket with 5-Bolt Fixation for Select YCF Bikes (2024-2025) - (Green)

Fitment
FACTORY SP2 150 (2024–2025)
FACTORY SP3 190 (2024–2025)
BIGY 125 (2024–2025)
BIGY 150 (2024–2025)
BIGY 150E Factory (2024)
BIGY 150E Factory XL (2024–2025)
BIGY 190 Factory Daytona (2024)
BIGY 190 Factory Daytona XL (2024–2025)
SUNDAY S124E (2025)
SUNDAY S147E (2025)
SUNDAY S187 (2025)

Specifications
Material: CNC-machined aluminum alloy
Chain Compatibility: 420, 428
Application: MX, enduro, track, pit bike
Function: Power transfer from the engine to the rear wheel via the chain, enabling the bike to move

FAQ - Common Rider Questions

Q: What chain size is compatible with this 43T sprocket?

A: This sprocket is compatible with a 420, and 428-size chain.

Q: Does the sprocket come with mounting hardware?

A: No, the sprocket does not include bolts or washers. Use existing hardware from what you are replacing.

Q: What is the advantage of an aluminum sprocket over steel?

A: Aluminum sprockets are lighter, which reduces rotating mass and can improve throttle response and handling, ideal for riders seeking performance gains.