SECTION II. EQUIPMENT DESCRIPTION AND DATA (Con't)
1-8. EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES (Con't).
i. RIM TYPES AND VARIATIONS (Con't).
(5) Flat-Base Rim with Removable Side Flanges and/or Lockrings. Flat-base rims have no
well and are manufactured in a variety of designs that are of two- or three-piece construction. One of
the bead seats bears on a non-removable rim flange and the other bead seats on a removable side flange
(6) Advanced Flat-Based Rim. Advanced rims are replacing older flat-base rims on recently
manufactured vehicles. The distinguishing characteristic that Advance rims provide is the 5º tapered
bead seats on both sides of the rim.
FLAT-BASE ADVANCED RIM