Roger wrote:I plan on buying a few items for my 2006 crf 250 and found several aftermarket plastic kits but do not want to get anything cheesy. I want to go white and would prefer something glossy or more factory like.
Roger:
For graphics, I have been partial to these guys:
http://oneindustries.com/bikes/39/crf-250-450...although a couple kits this year remind me of super hero's (the white kit with blue and red trim) and even one that looks like a birthday cake (the black and flourescent one, you'll see).
I also need to replace the chain and sprockets and again I am willing to spend if I can justify the reason a particular brand is better. I am more concerned with wear and durability than I am about gaining more power so as far as sprockets and chains go what last longer? Also would I be wise to get an o-ring chain.
I would invest in an o-ring chain, particularly the DID-VT chain, for a couple reasons. One is that it's a heck of a strong chain. A bunch of us on the site here have it on our 450R's, and have only needed to adjust it a tweak here or there. That's saying alot for the chain's tensile strength and resistance to stretch on a 450.
Another reason is that being a narrow o-ring chain, you shouldn't need to shim out your front sprocket. Double check me on that - I wouldn't want to hear it's rubbing your engine casing, but it shouldn't if it doesn't on the 250X or 450R.
Still another reason is: it looks neato (gold plates).

It is a rivet-connection chain, so plan accordingly with your tools. Invest in a good breaker/riviter like the one from Motion Pro, and you'll be fine.
As far as longevity vs. performance - you may notice more resistance from the o-ring chain, and you may not. I didn't on the 250X because the stock one was an o-ring, and I didn't on the 450R becuase... well, you just never run out of power.

But last and last it will. Think of it as the Energizer bunny.
For sprocket selection - I think on a 250 you're still in that range where you can use an aluminum rear sprocket (if you're one to keep it lubed each ride). But if you want to go steel, by all means it'll last longer. I tried the Renthal Twin-Ring sprocket, because I had a gift card. Not something I'd buy on my own - but it's holding up great. The theory there is an aluminum center, with an outer steel ring that makes up the teeth. It weighs significantly less than an all steel sprocket, but again, it costs more. It was part of a package I ordered, when I changed over to the DID-vt chain.
When I re-sprocketed the 250X, I used the DID-vt chain, a steel front sprocket, and alminum rear. Rode it a full season that way, and it still looks new. Just keep it lubed each ride, and you will more than triple the life of your chain and sprockets -- that's all metal to metal contact
before you throw in dirt and sand.
Is there anything else out there that would be worth getting to personalize this bike? (I already have an aftermarket pipe)
The R's are nicely unrestricted from the factory, so you won't need to throw down a lot of cash getting more performance out of it. How about protection? Radiator guards will save you hundreds. Look at guards that wrap around the entire rad, so as to give it snap back AND side impact protection. Flatland guards are a good example of this.
Other food for thought:
-aftermarket fuel screw for easier adjustment.
-having your suspension set up for your skill level and weight.
-rotating lever clamps are sweet. (saves $$ on levers during a wipe-out). ASV makes them.
-skid plate and/or engine guards? (if you do any trail riding)
good luck & enjoy your '06. -matt
btw: do you have a bogging condition? Some of the guys on the forum have been working at tuning out a throttle bog, and I think Boyesen makes a Quickshot2 acclerator pump cover that may help with that. Do a search on it, and see what the latest findings are. I think Kevin was the last guy to work on his bogging issues.