Wheels Comparison

Flat-Free Wheels - approx 16" x 4", 7 lbs.
TriStar 12x4 Wheels - approx 12" x 4", 7 lbs.
TriStar 14x5 Wheels - approx 14" x 5", 9.5 lbs.
Gravity Zero Wheels - approx 16" x 4", 6 lbs.

Style Comparison: 

FLAT-FREE

TRISTAR:

GRAVITY ZERO NARROW: