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MK1004125
About NICHE
NICHE specializes in the highest quality Powersports replacement parts. Our parts meet or exceed the quality of the original parts that come with your machine. Some of the NICHE product categories include cylinders, brake pads, axles, off-road mirrors, and drive chains. Let NICHE components fix your machine today!
NICHE Drive Sprocket and Chain Set MK1004125
O-Ring Drive Chain
- Includes: NICHE Front and Rear Sprocket Set with Drive Chain Kit
- Compatible with the following brands: Yamaha
- Compatible with the following models: YZ450F
- Replaces for the following OEM MPN's: 1C6-25449-20-00,94561-62114-00,9383E-13216-00,17D-25449-50-00,1C3-25449-00-00
- Front Sprocket Teeth: 13
- Rear Sprocket Teeth: 49
- Chain Model: 520V
- Chain Links: 114
- Chain Pitch: 520 (15.875mm)
NICHE DRIVE SPROCKET
What is a Drive Sprocket?
- Sprockets are rotating parts with teeth that are used in conjunction with a chain to transmit power
- In order for sprockets and chain to be compatible with each other they must both have the same thickness and pitch.
- In order for the sprockets and chain to work effectively, all of the sprockets should be on parallel shafts with their corresponding teeth on the same plane.
Parts of a Sprocket
- Number of Teeth - The total number of teeth (projections) around the whole circumference of a sprocket
- Pitch Diameter (PD) - An imaginary circle which is traced by the center of the chain pins when the sprocket rotates while meshed with a chain
- Pitch - The amount of pitch diameter in inches per tooth. Gears with a larger pitch will have bigger teeth
When to Replace?
- Check how well the chain meshes with the sprocket teeth. In a healthy chain and sprocket combo, the individual chain rollers align perfectly with the spaces between the sprocket teeth and fit down into those U-shaped grooves evenly
- Look closely at the sprocket teeth to see if they have become sharp at the tips and/or slightly curled. The teeth on a new sprocket are straight and have a flat or domed shape at the tip, If the teeth are sharp, the sprocket is worn
Drive Chain Types
Pros:
- Lightweight
- Best for racing
- No loss of power
- Little to no friction
Cons:
- Wears quickly
- Stretches faster
- No internal lubrication
Pros:
- Longer Life
- Great sealant
- Internal lubrication
Cons:
- Heavy
- Most friction
- Less horsepower
Pros:
- Low friction
- Longest lifespan
- Internal lubrication
- Increased efficiency over O-Ring
Cons:
- Heavy
- Expensive
Naomi Hurlock
Reviewed in the United States on January 5, 2025
It is not quality like DID, Renthal, or other known name brands. It will get the job done for a few rides, over a good deal for a cheap chain and sprocket set.Lasted me 3 rides and chain snapped. Can’t complain, worth the price I paid for being able to ride while waiting for a DID to arrive.
Parker Donaldson
Reviewed in the United States on September 6, 2024
Broke on first ride. They have changed Amazon fitment guide since emailing them about the issue. Denied refund. AVOID!
Matt Geer
Reviewed in the United States on July 6, 2020
Great package for refreshing your sprockets and chain. I got this for my 06 Yamaha yz450f. The chain is awesome and sprockets are good quality also.
Tyler
Reviewed in the United States on November 6, 2020
I bought this for my 2016 yz450f, the installation was pretty simple and it has held up pretty well. The front and rear sprocket fit as it should and the chain seems to be pretty good.
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