Horizontal dropouts with solid axles can be secured with Pitlock.

When it comes to quick release hubs with horizontal dropouts we do not recommend PITLOCK, unless a chain tensioner is applied.

If you have horizontal dropouts on your rear wheel (horizontal and not closed at back), we dissuade to use the Pitlock system for quick releases. The holding force of the solid axle security systems (e.g. M10, SH38 and SH90) is sufficient, even for horizontal dropouts.

Usually almost all rear wheels are being constructed in vertical dropouts (opening diagonally towards the bottom). In this case the installation of PITLOCK works without any problems.