Park Tool - FAG-2 - Frame Alignment Gauge Stock Item:Default Title the bag is equipped with

the bag is equipped with a FIDLOCK flat buckle for easy handling

30T Has a combination of 32T Increased Power Phase and 28T Dead Spot

Larger section double Velcro to securely fasten the bag to the seat post

Argon 18® :

the PINCLIP saddle bag can be closed easily and securely and the bag volume can be adjusted variably

Park Tool - FAG-2 - Frame Alignment Gauge Stock Item:Default Title the bag is equipped withPARK TOOL FAG 2 FRAME ALIGNMENT GAUGE Many bicycles will not shift or track properly because the front and rear wheels are not in line with the frame. If these conditions still exist after the wheel and derailleur adjustments, the seat stays, chain stays, and rear drop outs of the frame may be misaligned. For years the accepted method to check the alignment of the rear drop out was to run a string on either side. This method does work to some extent.