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Supersize Extender Plate is the upper part of the bracket, Minoura L bracket NOT included.
Highboy extender plate
Highboy extender plate
Highboy extender plate

eoGEAR Extender Plates (for “L” Bracket)

Extender plate “upgrade” for those which already have an “L” Bracket. It attaches to the 2314 Standard L Bracket. This does NOT include the bracket itself.


  • These are for shorter bicycle frames, approx. 52-58cm.
  • The 2352 Highboy adds 45mm (1.75") to the height to the Standard L Bracket.
  • The 2353 Supersize adds 75mm (3") to the height of the Standard L Bracket. This model may impair your ability to reach your leg over your saddle.
  • Constructed of tough 420-denier Ripstop fabric with a rigid aviation grade aluminum (6061-T6) stiffening backboard sewn on the inside.


Saddle & Frame Compatibility

This adapter mounts to the rails of most (80-90%), but not all saddles. See the bottom section of Visit this page to determine compatibility.

To determine which saddle bracket is best for your size bike frame, visit this page. Frames smaller than 54cm may not work with this saddlebag system as the bag may rub on the rear wheel.


Highboy weight: 80 g (2.8 oz.)
Supersize weight: 110 g (3.9 oz.)
eoGEAR SKU #: Highboy Extender Plate 2352-K00, Supersize Extender Plate 2353-K00
Extender plate & fabric backing designed & made in the USA — L-hardware adapter made in Japan by Minoura.

made in usa