Overview

Lab proofQuestions · sample rider · cases

The Lab · questions we answer

What is my aerodynamic drag, in actual numbers?

One ride file, physics-backed answers, then optional paths to gear when you are ready to buy speed.

No account needed for free solvers · premium tools require sign-in · data stays local until you save

Sample rider

Stephen · Cat 2 TT

CdA trace (demo)

CdA: 0.248
Crr: 0.0041
W @ 40 kph: 218
Rank: Top 12% cohort (demo)

So what?

Helmet swap−6 W @ 40 kph
Wheel depth +20mm−9 W equivalent
Position height −10mm−3 W modeled

Sample cases

Proof cards

FTP vs slower equipment

Baseline cost-of-speed sweep — compare holding power vs buying aero.

Wheel depth tradeoff

Gear + aero stack thought experiment (stub query param for future tool hints).

Position sensitivity

Ergo + fit deltas before you commit to a new cockpit.

q01

What's my CdA at race pace?

Tool: Cost of Speed · Free

q02

Deeper wheels — worth it for me?

Tool: What-if · Pro

Use Race Consultant stacks until standalone What-if ships

q03

How do I pace this course?

Tool: Race Consultant · Pro

q04

Is my position costing me watts?

Tool: ErgoBike + Cost of Speed · Mixed

q05

What is my CdA on the velodrome?

Tool: Track Lab · Pro

Velodrome CSV protocols and A/B position testing

How it works

01
Drop one ride file (.fit, .tcx, .gpx) into a solver that accepts it.
02
Our models estimate CdA, Crr, and pacing leverage validated against field protocols.
03
You get deltas and next actions — not a dashboard you have to babysit.