Velogic Studio bike measurements defined

Velogic Studio bike measurements defined

Our Velogic Studio system collects a detailed set of bike measurements that combine both traditional relationships and modern XY metrics.
Bike measurements as shown in Velogic StudioBike measurements as shown in Velogic Studio

The definitions for these measurements are listed below.

Saddle height

Measured from the centre of the Bottom Bracket to the top of the saddle. If the velogicfit Saddle Jig is used the saddle measurement point is where it is 80mm wide. Without the Jig the standard measurement point is 140mm back from the saddle nose for a road saddle or 100mm for a ISM Adamo style noseless saddle.
Saddle height measurementSaddle height measurement

Saddle Setback

The horizontal distance between the centre of the Bottom Bracket and the tip of the saddle. Can be measured using a Plumb Bob, Level or by finding any vertical straight edge such as the corner of a wall. Alternately you can place the rear wheel against a wall, measure from the wall to the centre of the Bottom Bracket then from the wall to the nose of the Saddle.
Saddle setback measurementSaddle setback measurement

Handlebar X

The horizontal distance from the centre of the Bottom Bracket to the centre of the Handlebar clamp. This can be measured using an XY tool, or a vertical straight edge or you can place the rear wheel against a wall, measure from the wall to the centre of the Bottom Bracket then from the wall to the centre of the Handlebar clamp.
Handlebar X measurementHandlebar X measurement

Handlebar Y

The vertical distance from the centre of the Bottom Bracket to the centre of the Handlebar clamp. This can be measured using an XY tool, after ensuring the bike is truly vertical measure from the floor to the centre of the Bottom Bracket then from the floor to the centre of the Handlebar clamp.
Handlebar Y measurementHandlebar Y measurement

Handlebar Width - Road

The centre to centre distance of the Drops. Easily measured with a tape from the inside of one side of the bar to the outside of the other. Note that some bars flare from the Hoods to the Drops so you may need to note both Hoods and Drops width.
Handlebar width (on road frame)Handlebar width (on road frame)

Handlebar Width - MTB

End to end of the bar, easily measured with a tape.
Handlebar width (on mountainbike frame)Handlebar width (on mountainbike frame)

Handlebar Width - Tri/TT

Centre to centre of the basebar grips. Easily measured with a tape from the inside of one side of the bar to the outside of the other.

Hood X

The horizontal distance from the centre of the Bottom Bracket to the upturn of the Brake Hoods. This can be measured using an XY tool, or a vertical straight edge or you can place the rear wheel against a wall, measure from the wall to the centre of the Bottom Bracket then from the wall to the upturn of the Brake Hoods.
Hood X measurementHood X measurement

Hood Y

The vertical distance from the centre of the Bottom Bracket to the upturn of the Brake Hoods. This can be measured using an XY tool, after ensuring the bike is truly vertical measure from the floor to the centre of the Bottom Bracket then from the floor to the upturn of the Brake Hoods.
Hood Y measurementHood Y measurement

Bar Drop

The vertical distance between the top of the Saddle and the top of the Bars (beside the Stem). Can be measured using a level or by measuring from the ground to the top of the Saddle and ground to top of the Bars. Note that if your Bar Drop is a negative number it indicates that the Bars are higher than the Saddle
Bar Drop measurementBar Drop measurement

Saddle to bars

The direct distance from the nose of the Saddle to the top of the Bars at the centre of the Stem clamp
Saddle to bars measurementSaddle to bars measurement

Saddle to drops

The direct distance from the nose of the Saddle to the end of the Bar drops.
Saddle to drops measurementSaddle to drops measurement

Frame X

Also known as Reach (this is the number you will see in most geometry charts). The horizontal distance from the centre of the Bottom Bracket to the centre of the top of the Headtube. This can be measured using an XY tool or a vertical straight edge or you can place the rear wheel against a wall, measure from the wall to the centre of the Bottom Bracket then from the wall to the centre of the top of the Headtube.
Frame X measurementFrame X measurement

Frame Y

Also known as Stack (this is the number you will see in most geometry charts). The vertical distance from the centre of the Bottom Bracket to the centre of the top of the Headtube. This can be measured using an XY tool or, after ensuring the bike is truly vertical, measure from the floor to the centre of the Bottom Bracket then from the floor to the centre of the top of the Headtube.
Frame Y measurementFrame Y measurement

Seatpost X

The horizontal distance from the centre of the Bottom Bracket to the front of the Saddle Rail clamp. This can be measured using a vertical straight edge or you can place the rear wheel against a wall, measure from the wall to the centre of the Bottom Bracket then from the wall to the front of the Saddle Rail clamp.
Seatpost X measurementSeatpost X measurement

Seatpost Y

The vertical distance from the centre of the Bottom Bracket to the front of the Saddle Rail clamp. This can be measured using an XY tool or, after ensuring the bike is truly vertical, measure from the floor to the centre of the Bottom Bracket then from the floor to the front of the Saddle Rail clamp.
Seatpost Y measurementSeatpost Y measurement




    • Related Articles

    • Velogic Studio vs 3D Motion

      Introduction We're proud to announce that our next-generation bike fit application, Velogic Studio, is available now. Existing customers of 3D Motion can automatically transition to Velogic Studio at no extra cost. This article outlines the ...
    • Velogic Studio Purchasing FAQ

      This page will answer all your questions about how to get started with Velogic Studio. If you have any other questions after reading this, please get in touch. How do I purchase the software? All velogic software is purchased through our website, ...
    • Bike measurements

      If you have an existing bike setup and you would like to find other bikes that can achieve the same setup, then you should choose “Measuring your: bike” on Step 1 of Advanced Bike Finder. Selecting "Bike" in step 1 On Step 2, you will be asked to ...
    • Troubleshooting Velogic Studio

      If you can’t get any information at all from the Kinect, or the Kinect is disconnecting: check out our hardware compatibility guide and Kinect camera troubleshooting guide first. Once you're sure that the Kinect is working fine (i.e. the Kinect ...
    • The bike fit process

      Step 1: Rider details After starting Velogic Studio (and optionally signing in, if you haven’t signed in recently), the Step 1 is to enter details for your rider. Entering rider details The client name, email and bike brand/model are used on the ...