Workshop
Calculators & trainer finder
Quick tools for the questions that come up on the bench and in the spare room.
Trainer finder · 2 questions
What are you happy to spend?
What matters most?
Bolt clamp force
What does that torque actually do?
5.0kN clamp force
510kg, as a weight
F ≈ T / (K × d)
Grease lowers friction, so the same torque gives more clamp force. That's why the number printed on a part assumes a specific thread prep. Follow it, and use the paste it asks for.
Indoor heat load
How much heat are you making?
709W of heat to lose
1.0L/h of sweat if evaporation did it all
heat ≈ P × (1/η − 1), η ≈ 22%
The body turns only about a fifth of its energy into work at the pedals. The rest is heat, which outdoors the wind carries away. Indoors, a fan is doing that job.