Rear Sprocket Moto Master 420 alu 55T red CR 85 / CRF 150
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Description
MotoMaster aluminum chainring 55Z 420
Moto Master MX Racing chainring suitable for Honda CR 80 (1980- ) and Honda CR 85 R (2003-2007).
Features Aluminum rear sprocket:
- Made from 7075-T6 aluminum (aircraft quality)
- Best available material quality
- Self-cleaning dirt grooves between each tooth prevents mud deposits
- One of the lightest sprockets on the market
- Colored anodized surface coating for durability and attractive design
- Optimum balance between stability and weight, ideal for competition use
- Manufactured using the latest technologies: CAD design and laser cutting
technical data motocross sprocket motomaster:
- Model: 7075
- Teeth: 55
- Chain: 420
- Material: Aluminum
- Color: red
- Mounting holes: 4
ATTENTION: The sprocket has a NEW DESIGN with only 4 mounting holes. We are working on updating the photo.
Funstion of Rear procket
The rear sprocket of a motorcycle is an essential part of the chain drive. It is attached directly to the output of the gearbox and is connected to the front sprocket via a chain.
How can I tell if the sprocket is worn?
A worn or damaged sprocket may show signs such as metallic rattling noises, worn teeth, a loose chain, or difficulty shifting gears.
smaller or larger chainring?
- Sprocket with more teeth → improved acceleration
- Sprocket with fewer teeth → higher top speed
You also have to consider the gear ratio between rear chainring and front sprocket. The calculation is: number of teeth of rear sprocket / number of teeth of front spocket. A low ratio increases speed, while a high ratio improves acceleration.
To ensure optimal life, it is important that you do not neglect chain care, we recommend a special chain brush.
| Rear Sprocket Moto Master 420 alu 55T red CR 85 / CRF 150 | |
|---|---|
| Article no. | MMAST-12112121 |
| EAN | 8790497038199 |
| Weight | 0,35 kg |
| Brand | Moto Master |
| Product type | Chain rear sprocket |
| Chain type | 420 |
| Rear sprocket | 55 |
| Colour | Red |
