YBN REINFORCED Chain 1/2x1/8x 102-HalfLink 1-Speed Freestyle Bike

Single Speed BMX • Cruiser • Fixed Gear • Lowrider

The YBN MK918 half-link chain is designed for single-speed bikes where strength, durability, and precise chain tension are critical. Its half-link construction allows finer length adjustment than a standard chain, making setup easier and more accurate.

This chain is ideal for BMX freestyle bikes, single-speed cruisers, fixed-gear setups, and custom builds that demand reliable performance with a clean chrome finish.

• Half-link design for precise chain length and tension adjustment
• Reinforced steel construction for strength and long service life
• Bullet-style master link included for easy installation and removal
• Chrome finish for a clean look and improved corrosion resistance
• Built specifically for single-speed drivetrains

• Brand: YBN
• Model: MK918
• Chain Size: 1/2" x 1/8"
• Speed: Single-speed / 1-speed only
• Total Length: 102 links
• Link Type: Half-link
• Material: Steel
• Finish: Chrome
• Rated Strength: Approx. 1300 kg
• Made In: Taiwan

A standard chain adjusts only in full-link increments, which can make it difficult to achieve proper tension. A half-link chain allows smaller adjustments so you can:

• Dial in correct chain tension
• Avoid awkward rear wheel positioning
• Often eliminate the need for a chain tensioner
• Reduce drivetrain wear and improve pedaling feel

This makes half-link chains especially popular on BMX and single-speed bikes.

Compatible With:

• Single-speed BMX bikes
• Single-speed cruisers and lowriders
• Fixed-gear and track bikes

Requires:

• 1/8" chainring
• 1/8" rear sprocket

Not Compatible With:

• Multi-speed bikes (6–12 speed)
• 3/32" drivetrains
• Bikes with derailleurs

Quick check:
1/8" wide sprocket = ✔ Compatible
3/32" narrow sprocket = ✖ Not compatible

• Bullet-style master link included
• Designed for secure single-speed use
• Makes installation and removal easier

• Bright chrome look for clean or show-style builds
• Pairs well with chrome rims, chainrings, and polished parts
• More corrosion-resistant than uncoated steel

• Chain includes 102 links and may need to be shortened
• A chain tool may be required for sizing
• Set chain tension correctly — not too tight, not too loose

Tip: A properly adjusted chain should have slight up-and-down movement.

• 1 × YBN MK918 reinforced half-link chain (1/2" x 1/8", 102 links)
• 1 × Bullet-style master link
• Original YBN packaging

• Riders who want precise chain tension
• BMX, cruiser, and lowrider builds that see real use
• Anyone looking for a strong chrome chain from a trusted brand