Keygeek B1 Linear Switches (10pcs)

The Keygeek B1 Switches are built for anyone seeking an extremely crisp, sharp clack—a linear switch that delivers a distinctly bright, aggressive sound profile thanks to its unique material setup and precise factory lubing.

The Keygeek B1 Linear Switches are among the most characterful linears on the market. They were developed with a single goal in mind: to produce the clackiest sound a linear switch can offer. To achieve this, Keygeek relies on an exceptional material combination unlike anything seen before.

The switch uses an N5 nylon bottom housing with 50% fiberglass, paired with an M4‑reinforced POM stem—a construction that provides maximum stiffness, fast feedback, and an extremely clear acoustic signature. Complementing this is a 21 mm single‑stage Japanese wire spring, which delivers a light, controlled typing feel.

Key Features

• Extremely clacky sound profile
  Engineered to produce one of the sharpest, brightest clacks among linear switches.
• N5 bottom housing with 50% fiberglass
  Ensures high stiffness, clear acoustics, and a uniquely defined sound character.
• M4‑reinforced POM stem
  Durable, fast, and precise—ideal for a crisp, well‑defined typing feel.
• 21 mm single‑stage spring
  Japanese wire spring for a light, consistent linear experience.
• Factory‑lubed
  Pre‑lubed from the factory—ready to use right out of the box with no modding required.
• 3.7 mm total travel & 45 g / 55 g forces
  45 g actuation and 55 g bottom‑out—lightweight yet with a clearly defined bottom‑out moment.

Specifications:

• Switch Type: Linear
• Top Housing Material: Nylon (PA12)
• Bottom Housing Material: N5 (Nylon with 50% fiberglass added)
• Stem Material: M4 Strengthened POM
• Spring: 21mm / Single Stage
• Pre-Travel: 2.0mm
• Total Travel: 3.7mm
• Operating Force: 45gf
• Bottom-out Force: 55gf
• Pins: 5-pin
• Factory Lubed: Yes