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Best Bike Split

Physics-based race pacing plans

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What BBS is

BBS is a race planning service for cyclists and triathletes. It models a course from elevation, weather and your power profile to predict split times and produce a pacing strategy, with AI-assisted workout building in advanced plans.

What you can do with it

  • Generate a target power plan per course segment
  • Simulate how wind or heat changes the outcome
  • Compare aggressive versus conservative pacing
  • Build workouts aimed at race demands
  • Review predicted versus actual splits afterwards

Who it is for

  • Time trialists and triathletes
  • Riders with power meters and target events
  • Coaches planning athlete race strategy

What to watch out for

  • Predictions depend on accurate inputs; a wrong FTP, weight or wind forecast skews the whole plan
  • Models cannot predict race-day chaos such as crashes, traffic or course changes
  • Pacing targets are training guidance, not medical advice; adjust for heat, illness and fatigue
  • Higher tiers are subscription-based; confirm current pricing

Pros & cons

✓ What we like

  • Genuinely useful course modelling
  • Scenario simulation aids strategy
  • Integrates with power training

! What to watch out for

  • Garbage in, garbage out on inputs
  • Race-day reality diverges
  • Full features sit behind subscription

FAQ

How accurate are the predictions?

Good inputs give useful estimates, but weather and race conditions always add error.

Do I need a power meter?

A personal power profile drives the model, so one is effectively required.

Is the AI workout builder included?

The vendor places it in advanced plans; check current tiering.

Last reviewed: 2026-09-15

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