Device and system for determining the weight distribution of a cyclist to support bike fitting
The measuring device with load cells and an app addresses the inaccuracy of existing bike fitting tools by enabling precise weight distribution analysis between saddle and handlebars, supporting professional bike fitting with ease and universality.
Patent Information
- Application Number
- DE202025002562
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-09-02
- Publication Date
- 2025-12-04
- Estimated Expiration
- 2035-09-30
AI Technical Summary
Existing bike fitting tools are inaccurate, complex, and limited to laboratory conditions, failing to accurately determine the weight distribution between saddle and handlebars in a static state.
A measuring device with a sensory saddle support equipped with load cells, a data acquisition unit, and an app for graphical representation and recommendation, allowing precise differential weight measurements and intuitive evaluation.
Enables quick, precise, and universally applicable weight distribution analysis for bike fitting, providing professional support without requiring modifications to the bicycle.
Smart Images

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Abstract
Description
Technical field:
[0001] The invention relates to a device and a system for measuring the weight distribution of a rider on a bicycle, in particular with regard to the load distribution between saddle and handlebars, for use in professional bike fitting. State of the art:
[0002] In bike fitting, the correct riding position is crucial for comfort, efficiency, and preventing physical discomfort. Currently, there are few tools available to determine the rider's actual weight distribution in a static state. Known solutions are often inaccurate, complex, or only usable under laboratory conditions. Purpose of the invention:
[0003] The object of the invention is to provide an easy-to-use, accurate and quick-to-use measuring system that can determine the weight distribution of a rider on the bicycle in a stationary state, in particular to professionally support bike fitting processes. Solution to the problem:
[0004] The task is solved by a measuring device with the following features: 1. Sensory saddle support (seat shell) with integrated load cells for measuring saddle load. 2. Data acquisition unit with display and storage function. 3. App for graphical representation, calculation of difference values and output of recommendations. 4. Measurement procedure with freehand initial measurement and comparative measurements with different handlebar positions. Advantages of the invention: - Universally applicable to almost any bicycle saddle - Precise differential measurement of weight shift - Intuitive app evaluation - Quick deployment without modifications - Professional tool for bike fitting providers Example implementation:
[0005] A bike fitting studio uses the device for consultations. The rider sits hands-free – 70 kg is measured on the saddle. With hands on the handlebars, the saddle load reduces to 58 kg. The difference of 12 kg corresponds to the handlebar load. The app calculates the values, displays them graphically, and recommends adjusting the handlebar height if necessary, depending on the individual riding style (from comfortable to sporty).
[0006] The drawing shows an embodiment of the invention. The device comprises the saddle support (1) with the weighing sensors attached to the bottom and with a fixing strap (3) which serves to attach it to the saddle (4). The data acquisition unit (5) with display is also shown. Short description (abstract):
[0007] The invention relates to a device for determining the weight distribution of a cyclist by means of a seat shell placed on the saddle with integrated sensors, a data acquisition unit and an app. It allows the determination of the handlebar load for optimizing the seating position during bike fitting through simple comparative measurements. Reference symbol list 1 seat shell 2 weighing sensors 3 fixing tape 4 saddles 5 Data acquisition unit
Claims
[1] Measuring device for determining the weight distribution of a cyclist with: - a seat shell with weight sensors that can be placed on the saddle, - a data acquisition unit for displaying the sensor values. [2] Device according to claim 1 with a maximum height of 3 cm. [3] System consisting of the device according to claim 1 / 2 and an app with wireless connection. [4] Arrangement for measuring weight distribution with handheld and handlebar-holding comparative measurement. [5] System according to claim 4 with automatic evaluation and recommendations for action.