If you’re searching for a reliable 20 inch bicycle chain, you want options that fit common single-speed setups and BMX rides. This guide highlights five compatible chains, each suited to different bikes and riding needs. Best for casual cruisers, best for BMX or freestyle riders, and best for mountain and road enthusiasts who run single-speed or fixed gear configurations. Use the following quick table to compare core details at a glance.
| Product | Link Type | Chain Size | Links | Best For |
|---|---|---|---|---|
| Schwinn Bike Chain | Single Speed Replacement | 1/2″ x 1/8″ | 112 | Non-derailleur, adult bikes, cruiser or BMX |
| HuGuWdy Single Speed Chain | 114-link chain | 1/2″ x 1/8″ | 114 | Road, MTB and BMX with single-speed setups |
| Zijipjy Single Speed Chain | 114-link chain | 1/2″ x 1/8″ | 114 | Versatile BMX/MTB use with easy install |
| ZONKIE Bike Chain | 116-link chain | 1/2″ x 1/8″ | 116 | Single-speed bikes and comfort/ freestyle BMX |
| cubsala BMX Chain | 84-link chain | 1/2″ x 1/8″ | 84 | 20 inch freestyle BMX and lightweight setups |
Schwinn Bike Chain: Replacement for Non-Derailleur Bikes
The Schwinn chain is a 1/2″ x 1/8″ replacement designed for non-derailleur bikes, including BMX, cruisers, and other adult bicycles. It uses a 112-link, heavy-duty construction to support longer rides and tougher terrains. An anti-drop design helps maintain chain retention on rough surfaces. Best for: riders needing a durable, straightforward replacement for single-speed bikes, especially cruisers and BMX bikes. Caution: ensure proper chain length is matched to your bike frame before installation.
RUBY.Q 6/7/8 Speed Chain Kit
This multi-function kit includes a 6/7/8-speed chain along with a link plier, chain breaker, and spare buckles. It emphasizes corrosion resistance and durability with a silver-plated finish and a double X-bridge design for improved tensile strength. Best for: hobby mechanics upgrading multiple-speed bikes or performing periodic maintenance. Caution: designed for multi-speed setups; use for single-speed bikes only if you confirm compatibility with your drivetrain.
HuGuWdy Single Speed Chain
The HuGuWdy chain is a 1/2″ x 1/8″ single speed chain with 114 links. It features a double X-bridge design to boost tensile strength and shifting smoothness. The chain is made from forged steel and silver-plated for rust resistance. Best for: riders needing a long, adjustable single-speed chain with robust construction. Caution: verify correct length for your frame to avoid overhang or drag after installation.
Zijipjy Single Speed Chain
The Zijipjy chain is 1/2″ x 1/8″ with 114 links and a double X-bridge design. It is forged steel with silver plating for corrosion resistance and durability. Best for: mixed-use BMX/MTB setups that require strong chain performance and easy installation. Caution: check your derailleur compatibility and chain length needs before purchase.
ZONKIE Bike Chain Single-Speed
The ZONKIE chain is a single-speed option with 116 links and a 1/2″ x 1/8″ size. It highlights forged steel construction, rust resistance, and smooth lubrication. Best for: riders seeking extra length for longer frame configurations or custom builds. Caution: longer chains may require extra maintenance to avoid excess slack on smaller frames.
cubsala BMX Chain
The Cubsala chain is a 1/2″ x 1/8″ chain with 84 links, designed for 20 inch freestyle BMX bikes and similar setups. Best for: lighter-weight, quick-install BMX chains where speed and agility are priorities. Caution: shorter length may require extension if used on longer wheelbases or non-standard frames.
Buying Guide
What chain size do I need?
Most single-speed and BMX bikes use 1/2″ x 1/8″ chains. Confirm your bike’s chain width and number of speeds before buying a replacement. For longer or heavier bikes, you may need a longer chain (e.g., 114–116 links) or to cut and adjust the length to fit properly.
Should I choose forged steel or plated finishes?
Forged steel offers high strength, while silver-plated finishes improve rust resistance. For bikes exposed to the elements or frequent rain rides, a rust-resistant chain can extend service life.
Double X-Bridge design — is it necessary?
Chains with a double X-bridge design can improve tensile strength and shifting smoothness, particularly on BMX and mountain setups. This feature can be beneficial if you perform jumps or rough terrain riding.
What about installation and length adjustments?
Most chains are easy to install with a chain breaker or master link tool. Ensure you adjust to the correct length to avoid drag, dropped chains, or improper gear engagement. When in doubt, measure the current chain length and compare to the new chain’s link count.
Are multi-speed chain kits useful for a single-speed bicycle?
Multi-speed chain kits include extra components and may be overkill for single-speed bikes. They are more suited to riders who upgrade to multiple speeds or need a full maintenance kit. Verify compatibility with your drivetrain.
FAQ
- What size chain fits a typical 20 inch BMX bike? — Most 20 inch BMX bikes use 1/2″ x 1/8″ chains; confirm by measuring your current chain.
- Can I reuse an old chain if it looks worn? — Replacing worn chains is recommended to prevent premature wear on gears and sprockets.
- Is a longer chain always better? — Not always; too long can cause slack and interference. Match chain length to your bike’s frame and derailleur setup if any.
- Do I need a special tool to install these chains? — A chain breaker or master link tool is typically sufficient for most chains.
- Should I oil the chain after installation? — Light lubrication helps reduce wear and quiet operation, but wipe off excess oil to avoid attracting dirt.
- Which chain is best for beginners? — For a straightforward, durable replacement on a single-speed BMX or cruiser, the Schwinn chain offers a solid balance of strength and simplicity.