FROG-LEGS PHASE-TWO -Sold as pair
Founded in 1997 by Mark Chelgren, the company started up after a chance encounter with a quadriplegic rugby team. Instead of fixed forks that require the wheel to move up and over obstructions — bouncing the rider in the process, Chelgren designed his forks allowing them to move smoothly over impediments in an arc path, functioning much like airplane landing gear.
In 2016, Chelgren felt he and Frog Legs could produce a better product by switching from machined aluminum to an even lighter alternative. That effort led them to carbon fiber composites. The second-generation caster wheels make use of two PlastiComp long carbon fiber-reinforced composite materials. A long carbon fiber-reinforced nylon 6/6 composite is used in the wheel forks, and a long carbon fiber-reinforced thermoplastic polyurethane makes up the wheel hub.
Leading the evolution of suspension - Unique long carbon fiber material.
Material Strength Comparison -- Tinsile strength of Phase Two Carbon Fiber twice that of T60/61 Aluminum, Validated through Finite Element Analysis Validation
Optimal Fiber Orientation -- Frog Legs proprietary design & custom material designed using independent mold flow analysis
Progressive Spring Rate -- The wedge becomes stiffer as the fork compresses keeping it from bottoming out while remaining sensitive to impact.
Wedge polymer optimizes absorption zone for improved bump response. Supports user weight range of 50 to 250 lbs.
The long carbon fiber-reinforced nylon composite used in the new forks helps make them 33% lighter than its aluminum predecessor and twice the tensile strength.
They are proven to be ultra strong, and carbon composite material has softer impact on walls and other surfaces. These forks is the new wedge-shaped polymer bushing. The new design actually makes the suspension have a progressive rate of shock absorption. On the small, quick ripples, such as those lovely yellow sidewalk pimples they put at the curb cutouts. Wedge polymer optimizes absorption zone for improved bump response.
The new shape and design is that they will support all weights from 50 to 250 lbs. The Phase-Two fork from Frog Legs, Inc. has now revolutionized the wheelchair fork. It's stronger, lighter, better, faster, and even less expensive.
How to check Caster Barrel and Wheel size:
- Make: Locate the appropriate make and model of your chair.
- Weight: Choose your weight range to achieve the maximum rider experience.
- Caster barrel to floor: Proper caster barrel to floor height impacts the tilt of the chair.
How to Measure Caster Barrel to Floor Height:
Frog Legs available in different colors:
Black, Blue, Purple, Orange, Red
NOTE: Sold as pair
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