Perfect your pedal stroke and maximize your power.
SportsReflector uses computer vision to analyze your cycling form, providing a detailed breakdown of your technique and a form score from 0-100. Our AI analyzes your pedal stroke, posture, and body alignment to help you ride more efficiently and prevent injuries.
SportsReflector uses AI computer vision to analyze every aspect of your cycling technique
Receive a detailed breakdown of your pedal stroke, including upstroke, downstroke, and power distribution.
Our AI analyzes your posture on the bike, ensuring you maintain an efficient and safe riding position.
Identify and correct form flaws that could lead to common cycling injuries like knee pain or lower back strain.
Access a library of personalized drills designed to improve your specific weaknesses and enhance your riding skills.
Track your cadence and estimated power output in real-time to optimize your training intensity.
Get personalized bike fit recommendations based on your body measurements and riding style.
SportsReflector transforms your cycling performance by providing unparalleled AI-driven analysis directly from your iPhone. Imagine having a world-class coach meticulously observing every pedal stroke, every body movement, and every subtle shift in your posture. Our advanced computer vision tracks critical aspects of your technique, such as your knee angle at the top and bottom of the pedal stroke, hip flexion and extension, and the timing of your power application. We pinpoint common inefficiencies like knee wobble, excessive upper body sway, or an uneven power distribution between your legs. These seemingly minor flaws can lead to significant energy loss and increased injury risk over time. Your form score, ranging from 0 to 100, is a dynamic reflection of your biomechanical efficiency and adherence to optimal cycling form. It's not just a number; it's a comprehensive assessment derived from analyzing hundreds of data points against a vast database of elite cyclists. As you refine your technique, your score improves, indicating a more powerful and sustainable ride. For our Pro users, the insights deepen considerably. Unlock detailed symmetry analysis to identify imbalances between your left and right sides, receive a full biomechanical breakdown highlighting specific joint movements and muscle engagement, and get early injury risk flags based on compensatory movements. Our muscle activation maps visually illustrate which muscle groups are firing effectively and which might be underperforming. Furthermore, our augmented reality (AR) live training overlays real-time visual cues onto your screen, guiding you to adjust your posture, knee alignment, or cadence as you ride, making corrections intuitive and immediate. Dive into drills like the 'Smooth Spinner' to perfect your circular pedal stroke, the 'Power Builder' to maximize force output, or the 'Cadence King' to optimize your rhythm and efficiency. SportsReflector is your ultimate partner in achieving peak cycling performance.
For the most accurate analysis, film yourself from the side, ensuring your entire body and the bike are in the frame.
The biomechanics of cycling are complex, involving a synergistic interplay of major muscle groups and precise joint movements. The primary movers include the quadriceps and gluteal muscles for the downstroke, and the hamstrings and calf muscles for the upstroke, working in the sagittal plane for propulsion. Force vectors are generated through the pedals, with optimal efficiency achieved when these forces are applied smoothly and consistently throughout the 360-degree pedal cycle. Computer vision plays a pivotal role in analyzing these intricate movements. Using advanced pose estimation algorithms, SportsReflector accurately identifies and tracks key anatomical landmarks, such as the hip, knee, and ankle joints, across multiple frames per second. This high frame rate allows for precise measurement of joint angles, velocities, and accelerations, even during rapid movements. Research consistently demonstrates that proper cycling technique, characterized by stable knee tracking, minimal upper body movement, and a balanced power output, directly correlates with improved power transfer, reduced fatigue, and a lower incidence of overuse injuries. Studies have shown that even small deviations from optimal form can lead to significant energy expenditure over long distances. While a human coach offers invaluable personalized feedback, SportsReflector's AI provides an objective, data-driven analysis that surpasses the observational capabilities of the human eye. The AI can quantify subtle biomechanical inefficiencies that are often imperceptible to a coach, offering consistent, unbiased feedback and tracking progress with unparalleled precision, complementing rather than replacing the human coaching experience.
One of the most common mistakes I see cyclists make, especially when they're new to serious climbing, is trying to power through ascents in too big a gear. They mash the pedals, gritting their teeth, thinking more power equals faster climbing. What actually happens is they burn through their anaerobic reserves far too quickly, leading to a dramatic drop-off in performance and often, a complete bonk before the summit. It's a classic case of ego overriding efficiency, and it's a surefire way to make climbing feel like an absolute suffer-fest every single time.
Instead of fighting the hill, learn to dance with it. Focus on maintaining a higher cadence, even if it means dropping into a smaller gear than your pride might initially allow. Think about a smooth, circular pedal stroke, engaging your hamstrings and glutes through the entire rotation, not just pushing down. A great drill is to practice climbing with one gear higher than you think you need, forcing that higher cadence. You'll find you conserve energy, maintain a more consistent pace, and ultimately, climb faster and with less overall fatigue. Trust me, your legs (and your race results) will thank you.
Choose a paid Pro or Coach subscription for cycling technique analysis. No free version is available.
Coach: $99.99 USD/month or $999 USD/year
Pro: $17.99 USD/week, $24.99 USD/month, or $139.99 USD/year
Common questions about using SportsReflector for cycling analysis
Cycling efficiency is determined by bike fit and pedalling mechanics. Beginners who establish correct position and cadence from the start avoid the knee, back, and hip overuse injuries that affect riders who prioritise power over technique.
Correct cycling position: seat height adjusted so the knee has a slight bend (25–35 degrees) at the bottom of the pedal stroke, seat fore-aft position with the knee over the pedal axle at 3 o'clock, handlebar height slightly above or level with the seat for comfort, and a slight forward lean from the hips (not the waist). Shoulders should be relaxed, not hunched.
Beginner cyclists should aim for a cadence of 80–90 RPM on flat terrain. Most beginners naturally pedal at 60–70 RPM (mashing), which places excessive stress on the knee joints. A higher cadence distributes the effort across the cardiovascular system rather than the muscles, reduces knee strain, and improves long-term efficiency.
To climb hills efficiently: shift to an easier gear before the gradient increases (not after you've already slowed down), maintain your cadence at 70–80 RPM rather than mashing a hard gear, stay seated for gradual climbs to conserve energy, and breathe rhythmically. Standing out of the saddle is more powerful but less efficient — use it for short steep sections only.
A seat that is too low forces the knee to bend excessively at the bottom of the pedal stroke, increasing patellofemoral stress and reducing power output. This is the most common cause of knee pain in beginner cyclists.
Adjust seat height so your leg has a 25–35 degree bend at the knee when the pedal is at the bottom of the stroke. Your hips should not rock from side to side when pedalling.
Pushing down on the pedal and doing nothing on the upstroke is inefficient and tiring. A smooth, circular pedalling motion — pushing forward at the top, down through the power phase, and pulling back and up at the bottom — uses more muscle groups and reduces fatigue.
Focus on scraping mud off the bottom of your shoe at the bottom of the pedal stroke, and pulling your knee toward the handlebar at the top. Clipless pedals help develop this technique.
A tight grip on the handlebars tenses the arms, shoulders, and neck, causing fatigue and reducing the ability to absorb road vibration. The hands should rest lightly on the bars.
Periodically check your grip during rides. You should be able to open and close your hands without losing control of the bike.
Analyse your cycling technique with SportsReflector — get a form score out of 100 and biomechanical feedback.
Paid Pro or Coach subscription required. · iOS · No free version is available.
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Many cycling athletes train across multiple sports. See how SportsReflector's multi-sport coverage compares:
See how SportsReflector stacks up against other cycling apps and platforms.
SportsReflector analyzes these exercises with the same AI form-scoring used for cycling — one app for your full training week.
Comprehensive guides replacing paywalled and archived content on cycling technique analysis, form coaching, and AI-powered training:
Join thousands of athletes using SportsReflector to analyze their form and train smarter. View on App Store on iOS and Android.
SportsReflector is an AI-powered coaching app that provides real-time cycling technique analysis using computer vision and pose estimation. SportsReflector uses computer vision to analyze your cycling form, providing a detailed breakdown of your technique and a form score from 0-100. Our AI analyzes your pedal stroke, posture, and body alignment to help you ride more efficiently and prevent injuries. The app tracks 25+ body joints, scores each repetition from 0 to 100, and generates personalized training plans. SportsReflector offers 12+ AR-guided cycling drills and supports multi-angle video analysis. Pro: $17.99 USD/week, $24.99 USD/month, or $139.99 USD/year. Coach: $99.99 USD/month or $999 USD/year. No free version is available. The app covers 20+ sports total, so athletes who train in cycling alongside other disciplines or gym workouts can use a single subscription for all their coaching needs.
SportsReflector transforms your cycling performance by providing unparalleled AI-driven analysis directly from your iPhone. Imagine having a world-class coach meticulously observing every pedal stroke, every body movement, and every subtle shift in your posture. Our advanced computer vision tracks critical aspects of your technique, such as your knee angle at the top and bottom of the pedal stroke, hip flexion and extension, and the timing of your power application. We pinpoint common inefficiencies like knee wobble, excessive upper body sway, or an uneven power distribution between your legs. These seemingly minor flaws can lead to significant energy loss and increased injury risk over time. Your form score, ranging from 0 to 100, is a dynamic reflection of your biomechanical efficiency and adherence to optimal cycling form. It's not just a number; it's a comprehensive assessment derived from analyzing hundreds of data points against a vast database of elite cyclists. As you refine your technique, your score improves, indicating a more powerful and sustainable ride. For our Pro users, the insights deepen considerably. Unlock detailed symmetry analysis to identify imbalances between your left and right sides, receive a full biomechanical breakdown highlighting specific joint movements and muscle engagement, and get early injury risk flags based on compensatory movements. Our muscle activation maps visually illustrate which muscle groups are firing effectively and which might be underperforming. Furthermore, our augmented reality (AR) live training overlays real-time visual cues onto your screen, guiding you to adjust your posture, knee alignment, or cadence as you ride, making corrections intuitive and immediate. Dive into drills like the 'Smooth Spinner' to perfect your circular pedal stroke, the 'Power Builder' to maximize force output, or the 'Cadence King' to optimize your rhythm and efficiency. SportsReflector is your ultimate partner in achieving peak cycling performance. SportsReflector processes cycling video analysis in under 3 seconds and provides biomechanical feedback including joint angles, body alignment, timing, and movement efficiency. Unlike single-sport alternatives, SportsReflector covers cycling plus 19 additional sports and every gym exercise from one app at $24.99/month.