H
LINEAR
linear HMX

HMX Moonlit Bleu

HMX Moonlit Bleu is a light linear offered in 37g and 45g weights with smooth travel. A review of its feel, sound and which weight to choose.

3.6mm
Travel
total key travel
4.0/5
Smoothness
our feel rating

How it feels

Smoothness silky → scratchy 8.0

How it sounds

Profile unrecorded
Noise level
Spring ping None

Full review

Quick Summary

HMX Moonlit Bleu is a light linear sold in two weights (a feathery 37g and a slightly firmer 45g), both built on the same smooth platform. It is aimed at people who want a fast, low-effort keypress without giving up HMX’s clean travel. If you type lightly or game and find most switches too heavy, Moonlit Bleu is worth a look in whichever weight matches your hands.

Specs and Feel

Both versions share a 2.0mm pre-travel into a 3.6mm total stroke and a POM stem riding in a PA12 top and P4 bottom housing. The 37g variant bottoms out at 43g, making it one of the lighter linears around, quick to actuate and easy on the fingers, though light enough that heavy typists may bottom out unintentionally. The 45g variant bottoms out at 53g and feels more grounded while staying comfortably light. The POM-on-nylon housing keeps the travel smooth and the sound moderate rather than sharp, with the PA12 top adding a little clack and the nylon-style bottom rounding it off. Wobble is well controlled across both.

Tuning

Moonlit Bleu comes with a sensible factory lube and feels good stock. With light switches like these, over-lubing is a risk, since too much drag fights the low spring weight and makes the switch feel sluggish. Any relube should stay minimal, a thin pass on the rails only. The bigger tuning decision is the spring weight itself: pick 37g or 45g up front rather than trying to mod your way between them. Films are optional and unnecessary for most builds here.

Verdict

Buy Moonlit Bleu if you want a genuinely light, smooth linear and would rather choose your weight than settle for a medium default. The 37g is the gaming and light-typing choice; the 45g is the everyday all-rounder. If you want a similar light HMX linear with more sound character, HMX Poro offers comparable 37g/45g options. For a clean, effortless glide, Moonlit Bleu does the job.

Frequently asked

Which weight of Moonlit Bleu should I get?

The 37g version (43g bottom-out) is very light and fast, great for gaming and light typists. The 45g (53g bottom-out) is a touch more planted and the safer all-rounder.

Is it a smooth switch?

Yes. The POM stem in a PA12 top and P4 bottom housing gives a clean, smooth glide, and it is light enough to feel effortless.

What is the travel like?

It is a 2.0mm pre-travel into a 3.6mm total stroke, so a fairly standard linear length with a light spring weighting.

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