Children's Bicycle Crankset Aluminum Alloy Crank Sprocket for Electric Vehicle 25T 102mm or 28T 114mm Replacement Part
Children's Bicycle Crankset Aluminium Alloy Crank Sprocket for Electric Vehicle 25T or 28T

This children's bicycle crankset is a practical replacement part for electric vehicles that use a standard chain drive. Made from aluminium alloy, the crankset offers a lightweight yet sturdy upgrade for worn or damaged original components. Available in two specifications to suit different riding needs: a 25-tooth sprocket with 102mm crank arm or a 28-tooth sprocket with 114mm crank arm. Whether you need to restore a child's bike to full working order or simply want a reliable spare part, this crankset provides the essential function of transferring pedalling force efficiently to the rear wheel.
Features and Construction

This crankset is built around a single-piece aluminium alloy design that combines the sprocket and crank arm into one unit. The material choice helps keep weight low while maintaining the strength needed for regular use on children's electric vehicles.
Material and Build
The crankset is manufactured from aluminium alloy, offering a good strength-to-weight ratio. This makes it easier for children to pedal without unnecessary drag from heavier steel components. The construction is intended for straightforward replacement on compatible electric vehicles.
Size and Practical Fit
Two size options are available: 25 teeth with a 102mm crank arm, and 28 teeth with a 114mm crank arm. The 25-tooth version provides lower gearing, which can help on inclines or with lighter riders, while the 28-tooth version offers slightly higher gearing for flatter terrain. Check your existing crankset's tooth count and crank length to select the correct replacement.
Uses and Placement

This crankset is specifically intended for children's electric vehicles that use a chain-driven system. It serves as a direct replacement part to repair or upgrade a bike's drivetrain.
Event or Professional Use
For repair shops or service centres maintaining a fleet of children's electric vehicles, stocking both the 25-tooth and 28-tooth versions ensures you can cover two common gearing needs. The aluminium alloy construction allows for professional fitting without concerns about corrosion or excessive weight.
Everyday Home Use
Parents can use this crankset to restore a child's electric vehicle to working condition at home. The simple design makes it a manageable DIY replacement for anyone with basic bicycle tools. Just confirm the tooth count and crank arm length match the original part before ordering.
Benefits and Buying Value

Choosing the correct replacement crankset extends the life of the electric vehicle without needing to replace the entire bike. The aluminium alloy material adds durability without unnecessary weight gain.
Reuse and Low Maintenance
Aluminium alloy resists rust better than untreated steel, reducing the need for frequent maintenance in damp conditions. The one-piece construction eliminates moving parts between the sprocket and crank arm, simplifying cleaning and inspection.
Why Choose This Product
This crankset is a direct replacement part that matches the original factory specification for many children's electric vehicles. You buy only what you need: one complete crankset with no extra components. The choice between 25-tooth and 28-tooth gives you control over the riding feel, while the aluminium alloy build keeps the bike light for young riders.



