K
LINEAR · 45g
linear thocky KTT

KTT Grapefruit

Our review of the KTT Grapefruit 45g linear — a soft, medium-weight POM-stem switch with a deep sound profile, factory lube, and a snappy 15.5mm spring.

4.0/5
4.0 4.0 · our rating
45g
Actuation
1.9mm pre-travel
4mm
Travel
total key travel
4.0/5
Smoothness
our feel rating
2/5
Noise level
thocky

How it feels

Smoothness silky → scratchy 8.0

How it sounds

thocky
Profile thocky
Noise level 2/5
Spring ping None

Full review

Quick Summary

The KTT Grapefruit is a soft, medium-weight linear built around a deep sound profile. With a 45g actuation and a 53g bottom-out, it feels gentle and cushioned underfoot, and the POM stem keeps the slide smooth. If you want a budget linear that leans warm and quiet rather than bright and clacky, this is a strong pick.

Specs and Feel

Travel is conventional — about 1.9mm to actuation and 4.0mm total — so nothing feels short or jarring. The polycarbonate top and nylon bottom housing are the source of that deep, soft character: nylon absorbs impact and rounds off the high frequencies, giving the bottom-out a thocky, padded quality. The POM stem slides cleanly against the housing, and factory lube keeps scratch low. A 15.5mm stainless-steel spring snaps the stem back quickly despite the gentle weighting. Wobble is acceptable for the price, and the overall impression is of a switch designed to feel soft rather than crisp.

Tuning

Grapefruits are comfortable stock and don’t demand work. If you want to chase the deepest possible sound, films will tighten the housing and reduce any hollowness, and a careful spring lube removes faint ping. But the factory lube already does most of the heavy lifting here — for a daily typing board, run them as they come.

Verdict

Buy these if you want a soft, deep-sounding linear on a budget and you prefer thock over clack. Compared to the KTT Cabbage Tofu, the Grapefruit trades some of that switch’s balance for extra warmth and a quieter bottom-out. If you instead want brightness and a sharper pop, the long-pole KTT Mint goes the other direction. For a cozy, low-noise linear, the Grapefruit is the one to grab.

Frequently asked

What does the KTT Grapefruit sound like?

Deep and soft. The nylon bottom housing and POM stem give it a thocky, muted-leaning report rather than a sharp clack, which makes it pleasant for shared spaces.

Is it good for typing?

Yes. At 45g actuation with a soft bottom-out, it's an easy medium-weight linear that suits long typing sessions without fatiguing your fingers.

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