Linkage is a powerful and easy-to-use while still well-featured 2D suspension analysis software for Windows systems, focusing on mountain bikes, but also capable of simulating other linkages.
Linkage also provides a user-extensible web library of bike models to help bike-enthusiasts compare different designs or publish their own ones. Linkage comes with data files for many bike designs already on the market (or past models).

 

Main features:

• simulation of all popular full-suspension bike frame systems from single-pivot swingarm to four-bar linkages with additional shock driving linkage ("6-bar linkage")
• calculation of linkage forces by a kinematic model, allowing different shock-setups
• front fork movement simulation for examining different scenarios
• comparisons allowed on diagrams to easily recognize differences between different designs
• multi-window working environment with numeric or mouse input
• creating new designs quickly using photos or ready-to-use templates
• export all results in high-resolution graphical or text formats or movies
• calculation of chain related changes, as well as "pedal-kickback" and anti-squat values
• customizable bike elements like wheels, forks and shock parameters, custom shock curves
• more than 60 existing designs included and hundreds available online

Available in two versions - Professional and Personal - meaning different depths of analysis and number of features available.

You may also directly go to the order page at the Kagi web store.

If you'd like to get a first hand experience for free, try the demo first.