GB4 Frames

4130 Chromoly construction
Laser cut crown and gusset with GB4 logo
Machined bearing holders
Magura specific brake bosses
Accepts 25.4 mm / 1 in. O.D. seat posts (or 22.2 mm / 7/8 in. with shim)

(click thumbnail for larger view)

bearing Holder Crown
Crown

Crown

Frame

Rear Gusset
Red Frame Red Frame Red Frame Red Frame
Black Frame Black Frame Black Frame Black Frame
Blue Frame

Blue Frame
Blue Frame Blue Frame Blue Frame

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