Bridge the Gap Between
Guesswork and Complexity!

The doesn't replace professional bike fitting services. It complements them by providing a simple, fast, basic fit for new riders and those returning to the sport after a layoff. 

In a nutshell: measure the inseam, read the frame size and saddle height off a table, then use the as a jig to set the saddle height. 

An earth-shattering technical breakthrough? No. An easily learned, solid technique for getting riders started right? YES.

Adjust the SETTING SCALES to the closed positions.

Click on any photo to view a larger image.

Note that these photos depict an older FitStik model.
The appearance may change, but the functions are the same.

1. SET THE FITSTIK FOR SIZING

Set the Insole Height to the minimum (0), and Crank Length to the maximum (190). I.E. the is "collapsed" to its shortest overall length.

Notes and Tips:

You should remove the ADJUSTMENT RULER from the CROSSBAR so that it won't touch the floor, especially when measuring shorter riders. 

To set saddle height, the STABILIZER BAR should be removed by unscrewing its main knob.

The MAIN CLAMPING KNOB near the large white dial should be loose enough so the dial can slide smoothly but not so loose that the bar is floppy or slips. 

The feet are at the person's normal standing width.

 

Place the palm on TOP of the FitStick and press down gently.

 

Pull UP on the CROSSBAR with the other hand.

2. MEASURE THE RIDER'S INSEAM

Actually, riders measure their own inseam. Here's how:

Tell the rider to stand up straight, with shoes off, and their feet regular standing width apart. As shown, they hold the in front of them and straddle the CROSSBAR.

Tell the person to:

a. Place the palm of one hand on TOP of the , and hold the down while they; 

b. Grasp the CROSSBAR behind the MAIN DIAL pull it up firmly into their crotch.

FIRMLY = Hard enough to "break an egg" but not hard enough to "hurt" (Some riders will want to sit on the bar. Wrong).

Notes and tips: 

Pressing the palm down on top of thecounters the upward pull on the CROSSBAR, so the base of the stays on the floor. 

If they pull the CROSSBAR up by the clamping knob they will not be able to pull up firmly enough.

If in doubt, have the person repeat several times, and take the average. If the measurements vary by more than a half inch or so:

a. Clarify "firmly" with them
b. Ensure that the is roughly vertical;
c. Ensure their feet remain the same distance apart.

WHAT IT MEASURES: The Inseam Scale measures from the base of the (where it touches the floor) to the top of the CROSSBAR.

The INSEAM and SEAT HEIGHT scales are in WHITE. Read the INSEAM off the leftmost scale on the MAIN STICK. The rider in the example has an inseam of 31" (Production s measure inseam in centimeters instead of inches).
Frame Size and Seat Height tables are on the back.

Read the frame size and height recommendations on the table.

3. FRAME SIZE AND SEAT HEIGHT RECOMMENDATIONS

Tables on the back of the 's MAIN DIAL match inseam with frame sizes (road and mountain) and recommended saddle heights. These are based on well-known formulas.

Take a closer look at the table (click on the picture to see it full size). For a rider with a 31" inseam, the recommended ROAD BIKE size is 52cm, the MOUNTAIN BIKE size is 16". For both types, the recommended initial seat height is 69.5cm.

Attach the FitStik to the BB. 4. SET SADDLE HEIGHT

You could set the saddle height using a tape measure or ruler, but it can be done more accurately with the .

NOTE: If you haven't already done so, remove the ADJUSTMENT RULER and STABILIZER BAR as suggested in step 1. Leave the Insole Height and Crank Length settings scales at 0 and 190 respectively. 

Set the Scale Pointer to the desired saddle height on the Saddle Height Scale (red numbers on a white background on the production models).  Then attach the to the bike's Bottom Bracket.

WHAT IT MEASURES:  The Saddle Height Scale measures from the center of the bottom bracket to the bottom of the CROSSBAR, which will lie flat on top of the saddle. 

Align the FitStik with the bike's SEAT TUBE.

This saddle is too low!

b. Line up the with the bike's seat tube. 

If the seat is too high, you won't be able to align the with the seat tube. 

The pictures show two views of a seat that needs to be raised. You'll probably have to adjust the clamps to keep the saddle level and correctly centered on the seatpost. 

Now it's right.

Another view: the FitStik aligned, and crossbar on the saddle.

Adjust the saddle height, setback and angle until the is aligned with the seat tube, and the base of the CROSSBAR lies flat on the saddle. 

Tighten the adjustment bolts. 

Notes and tips:

No fitting system is senior to a rider's perception of what's right. If the rider says the saddle is too low, or too high, it is. Beginning riders may have to work up to the recommended height a cm at a time as their flexibility and strength improves. Conversely, riders with a "toe down" pedaling style will need to raise the saddle a cm or two above the recommended height to get enough leg extension.