Conversion to horizontal dropouts (for fixed gear), V-brake

Question

If I convert vertical dropouts (as on picture) to horizontal dropouts as on youtube video by cutting and welding: 
                
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Will there be any challenges with the V-brakes ? If axle hole more or less will stay on same place, there shouldn't be any problem ?

Argenti Apparatus · Accepted Answer

V-brake calipers have a radial (with respect to the wheel) adjustment range, so they can accommodate the wheel axle moving fore or aft a little.
What you need to do is make sure that the placement of the new dropouts does not place the wheel axle such that the brake track on the rim is outside the range of caliper adjustment.
You could do this with a simple cardboard template that marks the axle to brake track distance.

ojs · Answer

The "horizontal" dropouts that are usually used with rim brakes are not completely horizontal but slanted so that adjusting chain tension moves the rim along tangent where the brake pads make contact with rim. In the video preview picture, the front-facing dropout is aligned like this. With this kind of dropouts, there is no problem with fixed gear, but with totally horizontal track-style dropouts you will have to adjust the brakes every time you adjust chain tension.

Answered by ojs on May 28, 2021

Conversion to horizontal dropouts (for fixed gear), V-brake

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