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Sinister Linear

Input Gear Keebfront Sinister Linear Switches

This linear switch targets users who want a smooth, consistent keystroke with medium actuation force and care about the materials affecting feel and sound. It suits typists or gamers preferring a quieter, non-clicky experience with a longer stem for a distinct typing sensation. The switch is less ideal if you want tactile feedback or factory lubrication.</p... Read more
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Compare Input Gear Keebfront Sinister Linear vs Input Gear Tropical Waters V3 Linear vs Input Gear Búri Diamond Linear Specification

Compare similar switches side by side, or use the comparison table to compare all keyboards!
Input Gear Keebfront Sinister LinearInput Gear Tropical Waters V3 LinearInput Gear Búri Diamond Linear
Sinister Linear
Tropical Water V3
Buri
0.0 (0)
0.0 (0)
0.0 (0)
  • 55g actuation force
  • 3.5mm total travel
  • UHMWPE top housing
  • UHMWPE stem
  • 60g actuation force
  • 2mm pre-travel
  • 3.65mm total travel
  • PC top housing
  • Deep sound profile
  • 45g actuation force
  • 55g bottom-out force
  • 1.9mm pre-travel
  • 3.8mm total travel
  • Nylon top housing
  • Muted sound profile
Name
Input Gear Keebfront Sinister Linear
Name
Input Gear Tropical Waters V3 Linear
Name
Input Gear Búri Diamond Linear
Release year
2025
Release year
2025
Release year
2025
Switch type
Linear
Switch type
Linear
Switch type
Linear
Factory lubed
 
Factory lubed
 
Factory lubed
 
Profile
Standard profile
Profile
Standard profile
Profile
Standard profile
Actuation force
55g
Actuation force
60g
Actuation force
45g
Bottom out force
-
Bottom out force
-
Bottom out force
55g
Pre travel
-
Pre travel
2mm
Pre travel
1.9mm
Total travel
3.5mm
Total travel
3.65mm
Total travel
3.8mm
Pins
5-Pin
Pins
5-Pin
Pins
5-Pin
Magnetic Hall Effect
 
Magnetic Hall Effect
 
Magnetic Hall Effect
 
Top Housing Material
UHMWPE
Top Housing Material
PC
Top Housing Material
Nylon
Bottom Housing Material
Nylon
Bottom Housing Material
Nylon
Bottom Housing Material
Nylon
Stem Material
UHMWPE
Stem Material
POM
Stem Material
POM
Sound profile
-
Sound profile
Deep
Sound profile
Muted
Spring type
Standard
Spring type
-
Spring type
Standard
Double stage
 
Double stage
 
Double stage
 
Long pole
 
Long pole
 
Long pole
 
Dust proof
 
Dust proof
 
Dust proof
 
Water resistant
 
Water resistant
 
Water resistant
 
Weight
-
Weight
-
Weight
0.55g
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Product Description

This linear switch targets users who want a smooth, consistent keystroke with medium actuation force and care about the materials affecting feel and sound. It suits typists or gamers preferring a quieter, non-clicky experience with a longer stem for a distinct typing sensation. The switch is less ideal if you want tactile feedback or factory lubrication.

Feel & Sound

  • Provides a smooth, linear keystroke without tactile bumps or clicks.
  • The longer stem design offers a unique typing feel compared to standard switches.
  • Material choices, including HDPE and nylon, influence a balanced sound profile, reducing harshness and emphasizing a softer thock.

Actuation Characteristics

  • Medium actuation force around 55 g supports deliberate keypresses without excessive effort.
  • Total travel of approximately 3.5 mm allows for full key travel with a defined bottom-out feel.
  • Long stem length may slightly affect keypress timing and feel compared to shorter stems.

Build Quality

  • Top housing and stem made from HDPE, a dense plastic that can improve sound and durability.
  • Bottom housing uses nylon, contributing to the switch’s acoustic and tactile characteristics.
  • Spring is standard linear type, providing consistent resistance throughout the press.

Modification Potential

  • Comes unlubricated, so users seeking smoother or quieter operation should plan to apply lubrication.
  • Long-pole stem design may respond differently to filming or lubing compared to standard stems.

Trade-offs

  • No factory lubrication means initial scratchiness or noise may be present until broken in or lubed.
  • Long stem length could increase stem wobble, affecting stability for some users.
  • Lacks tactile or audible feedback, which may not satisfy users who prefer more pronounced keypress sensations.

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