"Brake control bolts"? What the bloody he[[ do you think the control levers are for? If these things are so good, why not cut out the middleman and just inject air into the system?.......Doh!
What a crock of......
There's one born every minute.
I swear that if you marketed a "tire ventilation system" (read 6" nail & a hammer) there would be people queing up to buy 'em.
File this with the re-usable, washable oil filters under "junk"...
