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Head to head · Prices checked Oct 28, 2026

Royal Kludge R87 PRO vs Sikakeyb SK1 Mountain City

Get the Royal Kludge R87 PRO for the 6,000 mAh battery and knob.

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Quick verdict

Which one should you get?

Get the

Royal Kludge R87 PRO

Battery

Build quality in the top 20% of 80% boards under $100.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
  • No numpad.
$64 at Royal Kludge

Get the

Sikakeyb SK1 Mountain City

Build quality in the bottom 30% of 60% boards under $100.

Rules this board out

  • Compact layout only. No function row, dedicated arrow keys, or numpad.
$99 at Mechkeys

What actually differs

The differences that matter

Skip the 40-row spec sheet. These are the specs that change how each board feels, sounds, and fits your desk.

Royal Kludge R87 PRO

Sikakeyb SK1 Mountain City

  • Layout size

    80%

    60%

  • Battery

    6,000 mAh

    1,900 mAh

    A larger battery means fewer cables during the day

  • Case material

    Plastic

    Aluminum, Plastic

  • Knob

    Yes

    No

  • QMK

    Yes

    No

    The deep option when you want to remap every key

KeebFinder scores

How we score
  • Royal Kludge R87 PRO
  • Sikakeyb SK1 Mountain City
Performance
84
44
Build quality
78
50
Productivity
93
51
Customizability
91
73
Portability
85
82

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
See every spec side by side

Full specs

Royal Kludge R87 PRO vs Sikakeyb SK1 Mountain City specs

Every tracked spec, side by side. Rows marked with a dot differ between the boards.

12 of 23 specs differ

Royal Kludge R87 PRO

Sikakeyb SK1 Mountain City

Typing & switches

Switch options

Linear
—

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
—

Sound dampening

Yes
No

Layout

Layout size

80%
60%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

None
None

Media keys

Yes
No

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, 2.4 GHz, Wired

Battery

6,000 mAhBetter
1,900 mAh

USB-C

Yes
No

Build & materials

Case material

Plastic
Aluminum, Plastic

Keycaps

PBT
—

Weight

760 g
—

Dimensions

43 x 131 x 43 mm
—

Backlight

RGB, south-facing
RGB

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
No

Mac & Windows

Yes
Yes

Extras

Released

2024
2022

Where to buy

Compare prices

Live prices from the stores we track, cheapest in-stock offer first.

Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.

Lowest price across stores, Amazon excluded.

Royal Kludge R87 PRO2 stores
Sikakeyb SK1 Mountain City2 stores

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