Keen Sharp Gear Set Helical - 100:200

Keen Sharp
Code: KS-GH-200
  • Quiet Cycle
  • Upgrade Gears
  • Reliable Construction

A helical gear set constructed from Alloy with a ratio of 100:200 that is compatible with most Version 2 & 3 gearboxes. This set includes the Bevel, Spur & Sector Gear.

Full description


Helical gears are notorious for being far quieter when shimmed but must be done so to perfection. The slightest degree out in spacing and tuning can result in a terrible cycle noise. Once set up though these gears are very strong thanks to the more surface area you have in contact between each tooth. An ideal solution for those who want an incredibly stable build, smooth and quieter cycle per shot of their Airsoft AEG gearbox.


  • Stamped with white 100:200 numbers
  • 6 anti reversal points on bevel gear
  • Desired for silent builds
  • Requires an advanced level of shimming
  • Sector gear is a 2 part construction
  • Ensure after some time that the 2 part construction sector gear is secure by checking the 2 retaining bolts are tight, adding some thread lock will preserve the gear's life span

Package Includes:

  • Bevel Gear
  • Spur Gear
  • Sector Gear

Special Instructions:

We do not recommend that you use these gears in Airsoft weapons where the spring is rated 130m/s or higher.

Here are the true gear ratios on the Keensharp gears:

18:1 – 18,72
16:1 – 17,28
13:1 – 13,65
12:1 – 12,6
100:200 – 23,78
100:300 -  26,42
SR25 – 19,2



Patrol Base - Warning Icon
Upgrade Parts

Weight and Dimension

Weight KG Icon
Weight (KG)
Approx. 0.1kg


Colour Wheel Greyscale
Item Colour
Construction Icon
Internal Part Construction

Part Specific

Part for Power Source Type
Package Includes
  • Bevel Gear
  • Spur Gear
  • Sector Gear

Electric Part Specific

Gearbox Icon
Gearbox Version
  • V2 Gearbox
  • V3 Gearbox
Gearbox Version Compatibility Variant
Version 2, Version 3,

Size guide

Parts Fitting

Upgrades and Downgrades should only be undertaken by experienced players, or Airsoft Technicians. Please note, changing any internal parts of a weapon voids its warranty unless done in-house by our staff. 

Please ensure that when fitting parts the part purchased is the correct part, as once a part has been fitted we cannot accept return.

We do know that players love to tinker, so we're here to give you help should you require it, and if needed you can get in touch with our workshop for more help!

Unique Parts

Please note that some parts may be unique to a specific brand of weapon. For example: Parts for an ASG M4A1 may not fit an ICS M4A1.

Parts from the same brand typically have a high chance of fitting, though be warned, some replicas use unique parts, so please ensure the part will fit before you attempt to fit it.

If you require help with fitting any parts feel free to get in touch with us via our Contact Us Page.