Inseam Measuring Device

(1 customer review)


Inseam Measuring Device used in bike sizing and fitting to accurately determine length from the bottom of the foot to the pubic bone.  This can be then used to project a frame size, stand over clearance and saddle height.


Many bike fitting systems use a rider’s inseam measurement (also known as “inside leg”) as a data point for other calculations, so this Inseam Measuring device is an extremely useful bike sizing and bike fitting tool.

This professional-grade inseam measurement tool is designed for repeated use in a retail setting or fit studio without creating embarrassment for the technician or cyclist.   Easy to use and read, this tool will give you consistent, reliable, and repeatable results over and over again.


  • Thoughtfully constructing from aluminum tubing and solid oak for strength and durability
  • Internal hydraulic gas spring provides consistent pressure for reliable results
  • Used in the Fit Kit System calculations for determining the bicycle frame size and saddle height
  • If the high-quality original scale becomes worn, we have a replacement scale you can purchase with instructions to recalibrate your inseam device to look like new.
  • Handcrafted in the USA
  • Manufactured by Fit Kit Systems
  • A handy bubble level on top for helping to assure device verticality increases accuracy


  • Easy to use and read
  • Provides consistent, reliable and highly accurate results for rider inseam measurement
  • The inseam measuring tool can be then used to project a frame size, stand-over clearance, and saddle height.


2 Model Choices

From the footboard: calibrated for use with the Fit Kit Systems footboard.

From the floor: calibrated for use directly off the floor to achieve the correct distance reading from the bottom of the foot to the pubic bone.

Choose from THREE Inseam Measuring Device sizes:

Regular: Inseam range of 70cm  – 97cm.  Our most popular size, and used on adults over 5’2″ (157cm).

Small Adult: Inseam range of 50cm – 75cm.  Ideal for youth and adults under 5’2″ (157cm).

Junior: Inseam range of 40cm – 55cm.  Designed specifically for little kids being sized for a kid’s bike.

Color Choices (from the floor, only):

  • Classic Oak
  • Ebony

Other Options:

Use the optional Inseam Extender which adds 50mm of height to the device for extra tall riders, or as a booster for the Small Adult device for shorter riders who prefer less pressure than the Regular device.


Additional information

Weight 2.4 lbs
Dimensions 32 × 17 × 4 in
Measure from

Footboard, Floor


Regular, Small Adult, Junior


Classic Oak, Ebony

1 review for Inseam Measuring Device

1-1 of 1 review
  1. Works exactly as we had hoped.

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