Drive Sprocket Rear 42T 420 Size NS50F NSR50

[Kitaco 535-1036242 Drive Sprocket Rear 42T 420 Size NS50F NSR50 Kitaco 535-1036242]
The replacement timing for sprockets is very ambiguous, with no clear standards.
One factor for judgment is "tooth wear."
If the teeth become pointed, or the belly or sides wear down, it's time for a replacement.
Replacing all three parts simultaneously: front and rear sprockets and chain. If you only replace one of these, the worn parts that weren't replaced will prevent the new parts from performing at their best and lasting as long as they should, accelerating their replacement time. Therefore, in the long run, replacing all three simultaneously is recommended for better longevity.
This is the rear sprocket (wheel side).
Supports tuners with a wide range of tooth counts and reasonable pricing to enable fine-tuned settings.
Made from high-tensile chromoly steel, boasting high durability.
Sprockets are consumables.
As a general guideline for regular driving, please inspect the sprocket every 1000 km (daily lubrication significantly extends the life of sprockets and chains).
Rear sprocket teeth count ÷ Front sprocket teeth count = Gear ratio. A higher number indicates a focus on acceleration, while a lower number indicates a focus on top speed.
Compatible models: NSR50/80 (all models)
NS-1 (all models)
NS50F (all models)
NSR MINI
NSR50R
XR50 Motard AD14 (all models)
XR100 Motard HD13 (all models)
APE50-D (FI model) AC18 (all models)
APE100-D HC13 (all models)
NSF100
*The image is for illustration purposes only. Product design and specifications are subject to change without prior notice. Please be aware of this.