IBn00b.
Q: What does POT stand for, when referring to brakes piston count?
For example: This brake kit has 4-POT calipers.
Now I know 4 is referring to the # of pistions, but what exactly does POT stand for?
Q: What does JJ stand for, when referring to wheel widths?
For example: These wheels are 17x9JJ
I’m looking for exact words for these acronyms and not really what they
represent.
look at a caliper, the pistons look like POTS, that’s always what I assumed it meant… not an acronym… just slang term.
4 PISTON CALIPERS = 4 POT…
May be wrong though…
POT is just the British way of saying it I think.
J / JJ etc is the lip design the wheel has on the inside, for seating a tire. Its not really vital information to know
But what do those letters stand for? POT or JJ?
Or as stated earlier, since they are slangs, the letters don’t really have
any definitions to them? :dunno:
POT is becuse most 'pistons are hoolw on the backside hence it looks like a mini cooking pot. it’s also a term from casting to ‘pot’ something is to inset it into a frame work …
JJ is the same as JIC it’s a representation of the sizing standards accordance ( like any object here has the 'CS ’ logo on becuse it’s met the canadian standards act compliance… ), however JJ/JIC it is important when buying wheels… I recevied this info awhile back buying wheels right from Japan, JJ/JIC and north american SAE / UR are different sizing specs! any wheel measuerd in japan , using JIC standards a wheel will always be a 1/2 narrower then when measured here. a JIC 9" wide wheel is apparently ( I got this from two different sources at two different shops I use to mount tyres and saw the measurments myself) a 9" wide JIC = 9.5" SAE made in north america… Weather it’s right or just a mis imprint on my $3000 wheels … i don’t know but I measered them myself… the differenc eis WHERE they are measered on the rim …
I assumed the POT was because the pistons were hollow cups that looked
like cooking cups. I guess that’s probablly it.
LOL, Iguess thee is no actual wording to those letters. Ok, cool…