MyBikeFitting

Product Introduction

1. Definition: MyBikeFitting is an AI-powered bike fitting software leveraging computer vision and on-device processing to perform biomechanical posture analysis. It falls under the technical category of web-based biomechanical assessment tools for cyclists.
2. Core Value Proposition: It eliminates the cost ($200+) and logistical barriers of professional bike fittings by providing free, AI-driven saddle and handlebar adjustments in 5 minutes using a webcam, video, or photo—100% on-device, no account, no server uploads.

Main Features

1. AI Angle Measurement System: Uses pose estimation algorithms to detect joint markers (hip, knee, shoulder, elbow) and calculates four critical angles: knee extension (at 6 o'clock pedal position), hip angle (minimal femur-torso opening), back inclination (relative to horizontal), and arm flexion. Measurements occur via real-time webcam feed, video upload, or static photo analysis.
2. On-Device Processing: Executes entirely in the user’s browser using WebAssembly and WebGL for computer vision tasks. Zero data transmission occurs—images/videos never leave the local device, ensuring privacy and reducing latency.
3. Personalized Recommendation Engine: Cross-references angle data with user-inputted riding style (road, MTB, gravel, triathlon), pain points (knee, back, hand numbness), and morphology via a pre-analysis questionnaire. Outputs millimeter-precise adjustments for saddle height/fore-aft, handlebar reach/drop.
4. Multi-Capture Methodology: Supports three input modes: live webcam streaming (ideal for instant feedback), pre-recorded video (for dynamic assessment), or single side-profile photo (minimal setup).

Problems Solved

1. Pain Point: Resolves chronic cycling discomfort (knee pain, lower back strain, hand numbness) caused by improper bike fit. Identifies root causes like excessive knee flexion (<140°), restricted hip angle (<55°), or overly aggressive torso inclination (<35°).
2. Target Audience:
   • Amateur cyclists avoiding pro-fit costs.
   • Gravel/MTB riders needing dynamic position tweaks.
   • Triathletes optimizing aerodynamics and comfort.
   • Commuter cyclists experiencing urban-riding fatigue.
3. Use Cases:
   • Home trainer setup validation pre-training cycle.
   • Pre-purchase bike sizing to match geometry to physiology.
   • Post-injury readjustment for reduced joint stress.
   • Quick troubleshooting for sudden-onset mid-ride pain.

Unique Advantages

1. Differentiation vs. Traditional Fitting: Unlike $200+ in-person sessions requiring motion-capture systems (e.g., Retül), MyBikeFitting delivers comparable angle accuracy via accessible devices (phone/laptop) in <5 minutes at $0 cost. Competitor apps (e.g., BikeFast Fit) lack on-device processing and charge subscriptions.
2. Key Innovations:
   • Client-Side AI: Eliminates cloud dependency using browser-optimized TensorFlow.js models, enabling offline use and GDPR-compliant privacy.
   • Scientific Parameterization: Applies peer-reviewed biomechanical thresholds (e.g., Holmes method for knee flexion) dynamically adjusted by riding discipline via questionnaire logic.
   • Zero-Infrastructure Model: Absence of servers reduces operational costs, enabling permanent free access.

Frequently Asked Questions (FAQ)

1. Is MyBikeFitting as accurate as a professional bike fitter?
   MyBikeFitting provides scientifically validated angle measurements comparable to static pro fits for saddle/handlebar adjustments. Complex cases (e.g., leg length discrepancies) require certified fitters (IBFI), but it delivers >90% accuracy for common fit issues like knee pain from saddle height.
2. What equipment do I need for a successful analysis?
   Requires a laptop/phone with a webcam, your bike, and minimal setup: side-view positioning, natural lighting, form-fitting clothing. A home trainer stabilizes the bike, but wall support works. No sensors or accounts needed.
3. Does MyBikeFitting work for mountain bikes or triathlon setups?
   Yes, it supports road, MTB, gravel, triathlon, and city bikes. Recommendations adapt to discipline—e.g., more relaxed back angles (40-50°) for endurance MTB, aggressive torso angles (30-40°) for triathlon aerodynamics.
4. Why is MyBikeFitting free if pro fittings cost $200+?
   By running 100% on-device, it avoids server/hosting fees. AI automation replaces manual labor, letting users bypass traditional fitting overheads. Revenue is planned via premium features (e.g., dynamic pedaling analysis), not core fitting.
5. How does MyBikeFitting protect my privacy with video analysis?
   Zero media or biometric data leaves your device. Computer vision executes locally via secure browser sandboxing. No accounts, cookies, or tracking—compliance with strict EU data laws (GDPR) is inherent.