All tools
Calculators, compatibility checkers, databases and guides built around real manufacturer data. Each tool explains what it does and which sources it relies on.
Suspension calculator
PSI, sag and clicks for Fox, RockShox and Ohlins.
Manufacturer-based setup tables for Fox, RockShox and Ohlins forks and shocks. Includes sag visualization, rebound/compression guidance and compatibility notes for popular dampers.
Tire pressure
Front/rear PSI from rider weight, tires, terrain and style.
Uses discipline, rider and bike weight, tire width, casing, terrain, riding style and wet conditions. Includes manufacturer min/max references for popular MTB tires.
E-bike range
Estimate battery range with GPX support and a route map.
Covers common motors from Bosch, Shimano EP, Yamaha, Bafang, Specialized, Mahle and Fazua. Import a GPX route or enter route parameters manually.
Gear ratio and climb physics
Gear ratio, speed and watts versus grade.
Preset drivetrains, editable cassettes, speed charts, gear-gap analysis, cross-chaining checks and climb physics for comparing chainrings and cassette range.
Bike DNA
Bike character from geometry across six dimensions.
Scores stability, agility, climbing, descending, endurance and playfulness. Detects geometry archetypes and explains what each parameter changes on the trail.
Bike fit
Saddle height, reach, stem and cockpit from body measurements.
Includes saddle-height formulas, setback, crank length, bar width and saddle-width guidance across several cycling disciplines and riding styles.
Drivetrain compatibility
What fits what across Shimano, SRAM and hub standards.
Checks cassette and freehub, chain and cassette, shifter and derailleur combinations. Covers HG, Micro Spline, XD, XDR, HG+, LINKGLIDE, Eagle and AXS cases.
Calorie calculator
Estimate cycling calories from MET-based ride types.
Uses ride intensity categories based on the Compendium of Physical Activities model, with simple equivalents that make energy use easier to understand.
Training zones
Seven Coggan power zones from FTP plus five heart-rate zones.
Power-zone model for cycling workouts from active recovery to neuromuscular efforts, plus heart-rate zones based on max-HR estimates.
Used bike checklist
A 30+ point checklist before buying a second-hand bike.
Covers serial number, frame, drivetrain, brakes, suspension, wheels and test ride. Includes red flags, seller questions and post-purchase steps.
Tire size converter
ETRTO / ISO 5775 and inch-size conversions.
Explains 700c, 29 inch, 650b, 27.5 inch and common BSD values. Useful for checking mixed-wheel setups, plus tires and rim/tire sizing.
Bike parks and spots
Map of bike parks, pumptracks, dirt jumps and singletracks.
A ride-spot map focused on bike parks with lifts, public pumptracks, dirt jumps, singletrack networks and MTB-friendly skateparks.