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Know exactly where
your weight goes.
The Athlete tier adds True Center of Gravity analysis, dynamic weight distribution modelling, and full kinematic simulation to your BDC base. Know how your body and bike interact — in every riding situation.
Early access price locked for 12 months · Cancel anytime
Why does Center of Gravity matter?
The position of your CoG determines how your bike accelerates, corners, climbs and descends. It's the single most important number most riders never measure.
Your body is the biggest variable
Rider weight accounts for 70–80% of the total system weight. Your BDC defines where that mass sits on the bike.
Part selection changes CoG
A heavier wheel vs a heavier frame has completely different effects on your riding dynamics. BikeSPEZL shows you exactly how.
Dial in performance by discipline
DH, XC, gravel — each discipline has an ideal CoG window. Know if your build is optimised for what you ride.
Everything in Athletes PRO
Includes all Free (Rider) features plus:
True Center of Gravity (T-CoG)
Calculate the exact CoG of your complete riding system — rider body weight distribution + full bike part weights.
D-CoG & S-CoG Analysis
Dynamic and Static Center of Gravity — understand how weight shifts during pedalling, braking, and cornering.
Part Weight Integration
Pull real part weights from the BikeSPEZL catalog and incorporate them into your CoG and dynamics calculations.
Full Ride Dynamics
Simulate your complete riding system across any situation — climbing, descending, sprinting — with full physics.
Full Kinematic Analysis
Deep-dive into leverage ratios, anti-squat, anti-rise, axle path, and kickback across the full suspension travel.
BDC Regional Datasets (limited)
Access aggregated body dimension data from your region to benchmark your fit against real-world rider populations.
Priority Support
Skip the queue. Athlete tier users get priority email support from the BikeSPEZL engineering team.
Dive deeper
Understand exactly what you get with the Athlete PRO tier.
Only now $12/mo
Regular price $20/mo · Early access locked for 12 months
Sign up before May 2026 to lock in the discount.