Track every component, see the total instantly, and plan smarter upgrades. The simplest way to build a lighter ride.
Start Building — Free
Three steps to a lighter bike. No guesswork.
Create a bike profile — pick a name, set the type, and start from scratch or a template.
Choose from 1,200+ verified parts or add your own with real measured weights.
Get an instant total. Swap parts to compare and find the lightest setup for your budget.
See how every swap affects total weight instantly — no refresh, no waiting.
Weighed something yourself? Add it to your build and to the community database.
Get a unique link to your config. Share it on forums, with friends, or embed it.
Your builds are saved automatically. Access them from any device, anytime.
Set up your first build in under 2 minutes.
No credit card required · Free plan available