After working on and building many brands of karts, I welcome those pricy little Birel clips. I wish every kart used them.
You will break countless bits trying to drill bolts, then ruin every nylock you put on that drilled bolt. When you snag an arm on a cotter pin or safety wire, you’ll be more than glad to pay that dollar a piece for that little clip.
I think of it this way. If I bought a set of new clips every year we’re talking about less than a $20 bill.
To me, that’s a pretty fair price for the easiest clip in karting.
Then you will have to get a regular high tensile strength bolt and learn to drill a hole without breaking the drill bit, dress the threads so they don’t cut into the nylock and install a cotter pin so it doesn’t snag on anything.
FAA certified jet engine and aircraft technician,
Nicholson Speedway class champion 2001,
Yamaha KT100 Service Center,
41 years karting experience
Regardless of how one creates the hole, in the end safety wire is the easiest, cheapest way to create a lock. A can of safety wire costs $15 and lasts years. Invest in a good set of pliers, a worthwhile spend.
To prevent the snags and impaled fingers, always leave a short bit of extra twisted wire at the end and fold the sharp end back on to the nut or bolt so that it’s not exposed.