What Size Chain Does My 1987 Suzuki RM80 Dirt Bike Use?
Shop dirt bike parts for a 1987 Suzuki RM80 Dirt Bike.
Introduction
Using the correct chain size is essential for the performance, safety, and longevity of your 1987 Suzuki RM80 dirt bike. The right chain ensures smooth power delivery, reduces wear on your sprockets, and helps prevent unexpected breakdowns on the track or trail. For a classic motocross machine like the 1987 RM80, matching the OEM chain size is key to keeping your bike running at its best.What Chain Size Does the 1987 Suzuki RM80 Use?
The 1987 Suzuki RM80 most commonly uses a 420 chain size as its OEM specification. This is the standard size for this model and year, designed to handle the power output and sprocket setup of the RM80. There are no significant regional or trim variations for this model, but if your bike has been modified, it's always wise to double-check. If you're unsure, you can verify the chain size by checking the markings on your current chain or consulting your owner's manual.Understanding Dirt Bike Chain Sizes
Dirt bike chain sizes are identified by a three-digit number, such as 420. The first digit (4) refers to the pitch, which is the distance between the pins, measured in eighths of an inch (4/8" or 0.5"). The last two digits (20) indicate the width of the roller, measured in eighths of an inch (2.0/8" or 0.25"). Many small-displacement dirt bikes like the 1987 Suzuki RM80 use a 420 chain because it's lightweight yet strong enough for the bike's power and intended use.How Many Links Does the Chain Have?
The typical OEM chain for the 1987 Suzuki RM80 comes with 120 links. However, the exact number of links can vary depending on a few factors:- Changing sprocket sizes (more or fewer teeth)
- Adjusting the axle position for chain tension
- Modifying the wheelbase for handling preferences
Factors That Can Affect Chain Size or Length
Several factors can influence the ideal chain size or length for your 1987 RM80:- Riding type: Motocross, trail, or enduro riding may require different setups
- Engine displacement and torque: Higher power can demand a stronger chain
- Aftermarket sprockets: Changing sprocket sizes affects required chain length
- Suspension setup: Modifications can alter wheelbase and chain requirements
How to Confirm the Correct Chain for Your Bike
To ensure you're using the right chain for your 1987 Suzuki RM80, follow these steps:- Check the side plates of your current chain for stamped size markings (e.g., 420)
- Count the number of links in your existing chain
- Reference your owner's manual for OEM specifications
- If needed, measure the pitch (distance between pins) and width (inner width between plates) with a caliper
When Should You Replace Your Chain?
Replace your chain if you notice:- Excessive stretching or kinking
- Visible rust, corrosion, or stiff links
- Uneven wear or damaged rollers
Related Shopping Categories
Shop Chains for a 1987 Suzuki RM80 Dirt Bike.
Shop Sprockets for a 1987 Suzuki RM80 Dirt Bike.
Shop Chain and Sprocket Kits for a 1987 Suzuki RM80 Dirt Bike.
Shop Chain Cleaners for a 1987 Suzuki RM80 Dirt Bike.
Shop Chain Lubricant for a 1987 Suzuki RM80 Dirt Bike.
Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.
