Heheheheh... practical application. Suddenly the knowledgable bike mechanics are seeking out BMXers to see if they use grease to make their concrete ledge rides slipperier! Love it!

What hasn't been pointed out is that there are several points on a bike where maybe a touch of Loctite blue or equivalent might be applied. Such as the adjustment screws on V-brakes. The studs that hold the cantilever brake/V-brake calipers to the forks/seat stays. The screws that hold cleats to the soles of bike shoes. Maybe even the drop-out adjustment screw on a rear derailleur. Bolts holding on front and rear racks, if a spring washer is not used. Oh and maybe the threads of bottom bracket cartridges if they make a noise when pedalling uphill or under pressure.

Just in case some read the first couple of posts, and fail to get to the BMX issue. And I do point out this is from my own non-commercial, home bike mechanic point of view, and observation of what bike/equipment manufacturers provide.