Bike Value Depreciation Calculator
Estimate your bicycle's current resale value based on its original price, age, mileage, condition, and type. Use it before selling, buying used, or insuring your bike at fair market value.
About this calculator
Bicycles lose value through a combination of time, wear, and market factors. This calculator models depreciation using: value = round(originalPrice × 0.85^ageYears × (condition / 100) × max(0, 1 − mileage / 50,000) × typeMultiplier). The 0.85^ageYears term applies a 15% annual depreciation rate, compounding each year. The condition score (0–100) scales the result linearly — a bike in 80% condition retains 80% of its age-adjusted value. The mileage factor reduces value to zero at 50,000 km, reflecting mechanical wear. Finally, a bike-type multiplier boosts mountain bikes by 10% (stronger used-market demand) and reduces road bikes by 10% relative to a neutral baseline, while other types receive no adjustment.
How to use
Consider a road bike bought for $2,000, now 3 years old, with 8,000 km, in 85% condition. Apply: value = round(2000 × 0.85³ × (85/100) × max(0, 1 − 8000/50000) × 0.9). Step by step: 0.85³ = 0.6141; 0.6141 × 0.85 = 0.5220; 1 − 8000/50000 = 0.84; 0.5220 × 0.84 = 0.4385; 0.4385 × 0.9 = 0.3946; 2000 × 0.3946 ≈ $789. Your road bike's estimated current value is approximately $789.
Frequently asked questions
How much does a bicycle depreciate per year on average?
Most bicycles lose approximately 15–20% of their value per year in the first few years of ownership, which is the rate this calculator uses. Higher-end bikes sometimes depreciate more slowly because there is a strong enthusiast market for quality components. Conversely, entry-level bikes can depreciate faster because buyers at that price point often prefer new with a warranty.
What factors affect bicycle resale value the most?
Condition and age are the two most influential factors — a well-maintained five-year-old bike can outsell a neglected two-year-old model. Brand reputation also plays a major role outside this formula; bikes from Specialized, Trek, or Cannondale hold value better than off-brand equivalents. Mileage matters most for drivetrain-heavy components like chains, cassettes, and chainrings, which wear predictably with distance.
Why do mountain bikes hold their value better than road bikes?
Mountain bikes tend to retain value better because their rugged construction ages more gracefully, and the used market for trail and enduro bikes is very active. Road bikes, particularly those with older rim-brake standards or outdated groupsets, can lose appeal quickly as disc brakes and electronic shifting become the norm. This calculator applies a 10% premium for mountain bikes and a 10% discount for road bikes to reflect these real-world market trends.