Application

• VeloAngle’s primary application is to define the relative position of the bottom bracket, saddle and handlebars.Bikes with aerobars or integrated handlebars require the optional Saddle-Handlebar Adapter for measuring handlebar location. 
• Optional VeloAngle accessories further expand its capability (see Shop/Accessories).
• The VeloAngleApp is a valuable companion to document all measurements, provide visual comparison of the relative position of each setup and convert measurements between X-Y and Polar coordinates. A slide show and link to www.veloangleapp.com can be found on the home page

Accuracy

It would be impractical to attempt accurate alignment of the user's smartphone to the tool's reference points. Fortunately it is also unnecessary, as the recommended app, as well as others, have an "Alt Zero" function that applies a user-defined level plane. In this application that plane is the surface the wheels contact, or the quick releases if the bike is in a stand or otherwise not on the ground

The app we use most frequently is Multi Clinometer by Climatics, available from the Google Play store. A popular IOS app is Clinometer + bubble level at the App Store.

App calibration instructions can be found on this site in ""News & Tips / Downloads" with a comprehensive instruction video found in "News & Tips / Usage Tips"

While having an inherently accurate device is important, in many applications the accuracy and repeatability of how the device is used creates the majority of measurement uncertainty. For example, the most accurate scale in world won’t produce repeatable saddle to bottom bracket measurement when the placement of each end of the scale is dependent on the user’s judgement. VeloAngle solves this problem with unique adapters that find the bottom bracket and handlebar centers and allows the user to select and repeatedly find the spot on the saddle surface they want base their measurements.

Convenience

The genesis for developing VeloAngle was the belief that both cycling enthusiasts and those in the industry would respond positively to a device that had a better combination price, accuracy and convenience. We were particularly focused on convenience, as we know how much it influences purchasing decisions. It has sold over 30 billion K cups, despite the user often paying $40/lb for the coffee contained in them. While VeloAngle is not as convenient as pulling out a tape measure, every effort has been made to minimize the convenience penalty associated with its accuracy. Some examples:

• Retracts to 25.7” x 3.5” x 1.5” (653 x 89 x 38 mm)
• Can be used on both the left and right side of the bike
• Can be used upside down – sometimes convenience and access benefits
• The nibs protruding from the end housings contain flats aligned with the reference bore and tips on the same plane. These provide a means of using VeloAngle for taking “freehand” measurements of various features nearly as quickly as with a tape measure but with much greater accuracy.
• The method of maintaining the alignment of the two telescoping tool sections was chosen in large part because the central slot provided a convent means of aligning the tool with features like frame tubes, seat posts and seat clamps.
• The straps on the Saddle Adapter and Handlebar Adapter use to stabilize them are removable if the users decides they don’t want to utilize them or they purchase the optional fixed BB adapters that eliminate the need.
• To provide convenient and efficient storage, the shipping inserts are reusable and engineered as an organizer to hold VeloAngle and all available accessories in the original 4” x 4” x 28” box.