So I looked at lots of options for disc brake adaptors for non disc brake forks. I know there are lots of products out there for sale but I'm always looking to save money and I love to build stuff.
So here is what I did.
1- Found a 0.25" thick and 2.5"×4" piece of scrap steel plate. I imagine you can find or buy some anywhere.
2- I drilled a 25/64" hole in one corner. 1/2" from each edge to center then placed it on the wheels axle between the rim and fork then tightened it enough to hold it in place.
3- I then used a paint marker to draw lines around the fork and mark the bolt hole. This way I'd know how much to cut out and where to drill for my secondary hold down.
4-Then cutting out the scrap for the shape of the fork and drilled the secondary mounting hole I place it on again this time on the Outside of the fork.
5- I then slid my caliper over the disc of the brake to see if my bracket or disc needed to be shimmed with washers one way or another. Fortunately it did not. Lucky this time.
6- That done I used the same paint marker to mark the mounting holes for the caliper bracket and drilled them out.
7- After checking for proper fit and finding everything satisfactory I took a file and sandpaper to smooth out rough and sharp edges. I'll paint it after trying it out to make sure it doesn't need adjustments.
I made this build on a beach cruiser frame but after looking at my other bikes I'll be able to repeat this on them with minor differences.
So here is what I did.
1- Found a 0.25" thick and 2.5"×4" piece of scrap steel plate. I imagine you can find or buy some anywhere.
2- I drilled a 25/64" hole in one corner. 1/2" from each edge to center then placed it on the wheels axle between the rim and fork then tightened it enough to hold it in place.
3- I then used a paint marker to draw lines around the fork and mark the bolt hole. This way I'd know how much to cut out and where to drill for my secondary hold down.
4-Then cutting out the scrap for the shape of the fork and drilled the secondary mounting hole I place it on again this time on the Outside of the fork.
5- I then slid my caliper over the disc of the brake to see if my bracket or disc needed to be shimmed with washers one way or another. Fortunately it did not. Lucky this time.
6- That done I used the same paint marker to mark the mounting holes for the caliper bracket and drilled them out.
7- After checking for proper fit and finding everything satisfactory I took a file and sandpaper to smooth out rough and sharp edges. I'll paint it after trying it out to make sure it doesn't need adjustments.
I made this build on a beach cruiser frame but after looking at my other bikes I'll be able to repeat this on them with minor differences.
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