Welcome Amplitude Readers

Amputees are one of the largest groups of GRIT Freedom Chair riders. Unique push levers and rugged wheels make it easy to push on grass, trails, and sand!


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The GRIT Freedom Chair was designed by a world-class team of MIT engineers to handle any terrain.

  • Mountain bike tires provide superior traction on rough ground.

  • Large 9" front wheel absorbs shocks and never gets stuck.

  • Lightweight steel frame is extremely strong and provides a smooth ride on bumpy terrain.

  • Three-wheeled design is stable like a tripod.