- #428 Sprocket & Chains | Heavy Duty

YUMINASHI #428 HEAVY-DUTY WORKHORSE SPROCKET & CHAIN CONVERSION
Fits Honda NBC110 / C110 Super Cub Postie Bikes (JA23E Engine) (2013 – 2017)

Upgrade your Australian Honda NBC110 / C110 Postie Bike to maximum drivetrain durability with the Yuminashi #428 Heavy-Duty Drive System. Engineered specifically for high-payload delivery setups, heavy daily usage, and high-torque big-bore JA23E builds, the #428 pitch conversion replaces thin stock drive components with heavy-duty hardware built to eliminate chain stretch and sprocket wear under heavy loads.

• Heavy-Duty Tensile Strength: Thicker side plates, wider rollers, and heat-treated pins resist extreme cargo stress and torque spikes without stretching or snapping.

• Extended Wear Life: Drastically reduces chain adjustment frequency and sprocket tooth wear compared to stock #420 drive setups.

• Workhorse Reliability: The definitive choice for daily working Postie bikes, delivery fleets, and high-mileage utility riders who demand maximum load capacity and bulletproof drivetrain endurance.

Note: #428 chains must be installed with matching Yuminashi #428 front and rear sprockets. Do not combine with #415 or #420 pitch drive components.