This is a concept for an iOS 7 application. “fix’d” is used for timing laps, and calculating gear inches and skid spots.


Adam is a 24 yr old fixed gear rider. He and his friends like to tune their bikes a lot with new parts. After they are done tuning their bikes, they like to race around the block a few times to see how the new parts held up.

User Story
  1. As a user, I want to know how long I've been riding.
  2. As a user, I want to keep track of my individual lap times around the block.
  3. As a user, I want to be able to calculate gear inches quickly.
  4. As a user, I want to be able to calculate skid spots quickly. 

Design an application for fixed gear riders to keep track of lap timing, and calculate gear inches and skid spots.

Early Wireframe Explorations

I tested both lighter and darker themes to see which provided the most contrat to the user while outside. To give the user a sense of "good" or "bad" in terms of skid spots, the background or numbers would change color to indicate good or bad.

Final Visual Design

Loading and Stopwatch Screens

On the left is the loading screen. The screen on the right is the stopwatch before the user has started it. 

Stopwatch Screens

Here the user has started the stopwatch and added a few laps.

Stopwatch Screen and Lap Panel

Here the user has added multiple laps. The screen on the left is showing the user dragging up on the laps panel to see a graph style comparison of their laps.

Gear Inches and Skid Spot Calculators

The screen on the left is showing the gear inches calculator and the screen on the left is showing the skid spot calculator. The color of the numbers in the large view port are reflecting whether this setting is good or bad.

Tablet Loading Screen

Tablet version of the loading screen for an iPad.

Tablet Screen Showing All Tools

With more visual real estate on an iPad, I was able to get all of the features into one screen.