Accurate joint angle measurement is the foundation of a professional bike fit. The Shimano Bike Fitting Goniometer (BFGONIO01) is a professional-grade extendable angle measurement tool designed for trained bike fitters and sports medicine professionals. With extendable arms that lie directly over anatomical bony landmarks, it delivers repeatable, precise readings across the four key joint positions — ankle, knee, hip, and shoulder — removing the guesswork from static fitting assessments.

Highlights

• Extendable arms: Arms extend to reach and lie flat over bony anatomical landmarks for accurate, repeatable placement.
• Four measurement sites: Measures joint angles at the ankle, knee, hip, and shoulder for a comprehensive static assessment.
• Complete Fit integration: Enables static measurement of the three key metrics from the Shimano Bike Fitting Complete Fit protocol — knee extension, back angle, and hip-to-shoulder-to-wrist angle.
• Compact and lightweight: Easy to transport and store within a professional fitting kit.
• Professional-grade precision: Purpose-built for bike fitting studios, sports clinics, and mobile fitting professionals.

Precise Placement, Reliable Results

Standard goniometers rely on the examiner estimating alignment by eye. The BFGONIO01's extendable arms are long enough to bridge across joints and rest against bony anatomical reference points, eliminating estimation error. This produces readings that can be documented, compared, and reproduced across multiple fitting sessions — essential for tracking position changes and validating fit adjustments over time.

Part of the Shimano Bike Fitting System

This goniometer is a core component of the Shimano Bike Fitting Complete Fit protocol. When used as part of a structured fitting session, it captures the static versions of three of the four dynamic metrics assessed in a full Dynamic Fit: knee extension at bottom dead centre, torso back angle, and hip-to-shoulder-to-wrist angle. These readings guide saddle height, handlebar reach, and stack adjustments to balance rider comfort and power output.

Compatibility & Fit

Suitable for road, mountain, gravel, and triathlon bike fitting assessments. Intended for use by trained bike fitters and sports medicine professionals operating within the Shimano Bike Fitting System or equivalent professional fitting protocols. Part number: BFGONIO01. EAN: 8717009379465.