BikeMaster 420H Chain Master Link - Gold - 197601

The BikeMaster 420H Chain Master Link in Gold (Part #197601) is a precision-engineered replacement master link designed for 420H-pitch motorcycle and off-road bike chains. Whether you're replacing a worn clip link after routine chain maintenance or finalizing a fresh chain installation on a small-displacement street bike or off-road machine, this gold master link delivers the durability and secure connection you need to keep your drivetrain running reliably. At just $1.45, it's one of the most cost-effective drivetrain components you can keep in your toolbox.

Key Features & Benefits

• High-Strength Steel Construction: Built from high-strength steel for lasting durability, so the master link holds up under the repeated stress and flex of real-world riding conditions.
• Solid Rollers: Designed with solid rollers that reduce friction and promote efficient power transfer from your engine to the rear wheel — keeping your drivetrain performing as intended.
• Impressive Tensile Strength: Rated to an average tensile strength of 4,100 lbs, giving you confidence that the connecting link won't be the weak point in your chain system.
• Clip-Style Master Link Included: Comes with a clip master link for straightforward installation — no special tools or rivet press required for most applications.
• Gold Finish for Easy Identification: The distinctive gold color makes this master link easy to spot on a spinning chain, so you can quickly locate it during future maintenance or inspection.
• Performance-Oriented Design: Developed specifically for performance applications, balancing low friction with high durability — not just a generic connecting link.

Specifications

• Brand: BikeMaster
• Part Number: 197601
• SKU: BKM197601
• UPC: 887337239156
• Chain Size: 420H
• Finish/Color: Gold
• Average Tensile Strength: 4,100 lbs
• Link Type: Clip master link
• Max Engine Size: 125cc street / 90cc off-road
• Package Dimensions: 3.50" (L) × 1.50" (W) × 0.50" (H)

Fitment

The BikeMaster 420H Gold Chain Master Link is designed for use with 420H-pitch chains on small-displacement motorcycles and off-road bikes. Per BikeMaster's specifications, this master link is rated for engines up to 125cc on street applications and up to 90cc on off-road applications. It is commonly found on entry-level dirt bikes, pit bikes, mini bikes, and lightweight street motorcycles that use a 420H chain standard.

Important: This master link must be correctly matched to your machine's size and power output. Using a chain or master link that is mismatched to your motorcycle's displacement or power output can result in chain failure, property damage, or serious injury. If you are unsure whether a 420H link is correct for your application, verify your chain pitch by counting the existing chain's link spacing or consult a professional before installation. This link is not intended for larger-displacement machines that require 428, 520, 525, or 530-pitch chains.

What's in the Box

• 1 × BikeMaster 420H Gold Chain Master Link
• Includes clip master link hardware

Why Buy from ThreePiece.us

ThreePiece.us carries the full BikeMaster drivetrain lineup, and the 420H Chain Master Link is regularly stocked and ready to ship. Here's why riders trust us for parts like this:

• Free Shipping: Every order ships free — no minimum required.
• Affirm Financing: Break larger orders into manageable payments with Affirm financing, available at checkout.
• Expert Fitment Support: Not sure if the 420H is the right pitch for your chain? Our fitment team has served 10,000+ customers and can help you verify the correct part before you order. Reach us at 813-535-5801 or via our contact page.
• In Stock & Ready: This item is regularly stocked, so you won't be waiting weeks for a simple master link.

Frequently Asked Questions

What does the "420H" designation mean, and how do I know if my bike uses a 420H chain?

The "420" refers to the chain's pitch (distance between link pins), and the "H" denotes a heavy-duty version of the standard 420 chain. You can identify your chain size by checking your owner's manual, reading the stamping on your existing chain's side plates, or measuring the pitch manually. The 420H is most common on small-displacement street bikes up to 125cc and off-road bikes up to 90cc.

Does this master link work with all 420H chains, regardless of brand?

This BikeMaster master link is designed for 420H-pitch chains and should be compatible with other 420H chains of the same pitch standard. However, BikeMaster notes that the chain and master link must be correctly matched to your machine's size and power output. Always confirm compatibility with your specific chain before installation.

Is a clip-style master link safe, or should I use a rivet-style?

BikeMaster supplies a clip master link with this part, which is appropriate for the 420H pitch rating (up to 125cc street / 90cc off-road). For higher-displacement machines with greater chain stress, a rivet-style link is often recommended — but for the applications this link is rated for, the clip style is the standard and accepted connection method.

Why is the master link gold instead of silver like the rest of my chain?

The gold finish on the master link is intentional — it serves as a visual indicator so you (or a mechanic) can quickly locate the master link during future chain inspections or removal. It has no effect on performance or durability.