Bits you need: Power drill 6mm drill bit (optional) 7mm drill bit 5mm Allen key m5 threaded inserts. I use these Threaded inserts Your hub, obviously Tools to take your hub apart. The first time I did this was with Marder hubs -there seems to be a bit more meat on them than the mutilator hub shown here - so you might need to grind a milli off the bottom of the insert to clear the metal inner ring. Anyway, it makes it easier if you drill 6mm first, so, strip your hub: Posted Image And take out that metal ring. Drill 6, then 7 mm - the drill should follow the existing hole. Posted Image Et voila Posted Image Then, get insert and allen key and drive it in - it can be a bit tricky to get started. Posted Image Finished. You can see here theres a very slight maybe 0.5mm protusion out of the top, and it is squashing the inner metal ring a bit - Edit: Just checked out my marder hubs - if you do top and bottom at the same time it squashes that ring a little both sides and evens it up - so no probs.


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