Submit Chassis Specs
Chassis Systems
Chassis Engineering

Bespoke 4130 chromoly chassis

Engineered to tenth-millimeter tolerances on rigid surface-plate fixture jigs. We fabricate custom frames and billet swingarms for privateer track teams and vintage racers.

Verified Tolerances

Structural precision metrics

0.20 mm

headstock jig alignment tolerance

95 ksi

certified 4130 tensile yield

100%

argon-purged joint penetration

6061-T6

machined billet pivot blocks

Fabrication Packages

Race chassis and swingarms

Custom swingarm assemblies

Machined from grade steel with integrated eccentric chain adjusters and modular billet pivot blocks for maximum torsional stiffness under trail-braking.

Full custom race chassis

Bespoke perimeter and trellis frames notched, clamped, and welded within dedicated frame jigs to eliminate geometric drift during thermal cooling.

Engineering Directive

Built for extreme torsional stiffness under trail-braking, not showroom gloss.

Every tube interface is cope-notched, argon-purged, and indexed on certified surface plates to guarantee unyielding structural integrity at track limits.

Submit Chassis Specs

Submit your chassis geometry

Provide your engine mounting architecture, suspension pickup coordinates, and target rake and trail figures for an exact engineering evaluation.