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Hmx Bad Sweetheart

HMX

Standard ProfileLinear5

Switch Overview

The Bad Sweetheart switch designed by Rena Lab is one of the deepest sounding HMX switches so far; Thanks to the T5 UPE blend stem, the spherical stem tip, and the new P4 bottom housing molding, they don't sound like your usual HMX type. The new P4 bottom housing comes with as less fiberglass as possible in order to eliminate the clacky tone from the sound profile. If you are a fan of deep and thocky sounding switches that are not muted, the Bad Sweetheart switches would be a great option. Factory Lubed: Yes! mixed GPL105&GPL205 on leaf spring, stem feet, and bottom housing rails.

Last Updated: December 26, 2025

Physical Specifications

Physical Specifications
Actuation Force45g
Bottom Out Force62.5g
Pre-travel2.0mm
Total Travel3.8mm
Stem MaterialPOM
Factory LubedYes
Spring22mm KOS single-stage extended Factory Lubed
DesignerRENA LAB Mold
MoldNew Manufacturer
Profile Information
ProfileStandard Profile
TypeLinear
SilentNo
Pin Count5

Vendor Information

Vendor Information

mechanical-keyboards

55 USD
Note: Price information may not be accurate. Please verify the current price on the vendor's website.
5
In Stock
Last Updated: 10/11/2025

unikeys

558 JPY
Note: Price information may not be accurate. Please verify the current price on the vendor's website.
Quantity:10
unknown
Last Updated: 10/11/2025
Force Travel Diagram

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