Maintenance & Technical > KX500 Original

Front disc bolt pattern?

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Tumbleweed:
woo! I'm getting excited! I'm still waiting on the caliper to get delivered. I'm feeling good about this. I got the forks for $50.00 cause no one else bid on them. I guess if they knew they were from a newer model more people would have bid.

Tumbleweed:
alright, no caliper yet, but I took some pictures in case anyone was interested.

the forks do look more silver than gold, I will use those triple clamps cause they are in better condition than the ones on the bike currently here is a picture:



Here is a picture of one of the tubes bolted on to my current clamps:



and here is a lame attempt to measure the forks with a ghetto homemade caliper. The yardstick is marked cm, when I converted it to mm it turned up at 45mm. most likely not a true measurement, but I tried.





demographic:
I have just had a look at my catalogue and the seal sizes listed for KX500s are as follows...

83-87, 43x55x10.5 (right way up forks)

88, 43x55x9.5/10 (right way up forks)

89, 45x58x10.5/11 (right way up forks)

90, 41x53x8/9.5 (upside down forks)

91-96, 43x55x9.5/10 (upside down forks)

97-03*, 46x58x9.5/10 (upside down forks).

So, the 83-87 bikes ran 43 mm right way up forks.
88 bikes ran 43mm right way up forks with different seals.
89 ran 46mm right way up forks.
90 bikes had 41mm upside down forks.
91-93 bikes had 43mm forks.
97-03* bikes had 46mm forks.

*I would guess that the 04 bikes also use the same size forks as the 03 but don't know for a fact.

BDI:
I don't know If this Is any help to you but on my digital caliper one inch converts over to 25.4 mm. My digital caliper Is probably the single most used tool In my garage next to the bottle opener bolted on side of my bench. I would be lost with out It every one should have one even If It is just a cheep plastic one from harbor freight digital Is sweet becaus you can convert inches to mm. My wife even uses my caliper for girl type stuff.

don46:
  Must be a European thing, don't ever remember seeing a KX with purple forks, there were some purple fork boots about 96 for the bikes that had right side ups and purple fork guards for those with upside downs.

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