What chain "weight" do I order?

I'm getting ready to order a GYTR 13t front and 45T rear sprocket. I'm also going to order a EK chain from GYTR while I'm at it. What style chain do I need? Yamahas website lists:

GMX = Non O-Ring
GMXL = Non O-Ring (lighter version)
GDO = O-Ring
GDX = X-Ring seals
GDXL = X-Ring seals (lighter version)

WTF is the difference between all these? What is the best for my application?

The "L" is a lighter chain for 125 & 250cc bikes. Just make sure to get an O or X ring chain.

So the 520 GDXL would be best for the X?

I'd go 520 GDO 112 links. No experiance with x-ring.

X-ring is a better-sealing type of O-ring with less drag.

Go with the X ring, and don't get the "light weight" chain.

my 2 cents

520GDX it is. When searching everybody seemed to say that 110 link chain would fit 13/45?

Yeah - I've got a 13/48 combo and 112 links fits that perfectly.

I had 13x45 and went to a 13x46 which I like alot better. Mostly 2 lane twisty mountain roads on an x.

Dropper my 13-47 to a 12-47 today and like the wheelie power.

Yea don't get a non o-ring chain.  I made that mistake before.  I did it because it was cheap.  Because of the short life, it will probably be more expensive in the long run.  I did not lube it after a ride and it started rusting and getting sticky links.  Now I am going to run a x-ring chain.

duanew wrote:

Yea don't get a non o-ring chain.  I made that mistake before.  I did it because it was cheap.  Because of the short life, it will probably be more expensive in the long run.  I did not lube it after a ride and it started rusting and getting sticky links.  Now I am going to run a x-ring chain.

It doesn't matter if it was a O-ring or a Non O-ring if you don't lube your chain.

The O-ring chain will fail just as quickly as a non O-ring chain if not properly maintained.

I just went back to a "quality" non O-ring chain.

The O-ring chain is supposedly prevent dirt into getting into the chains links but it still does and it never comes out. The non O-ring chain is easier to clean out.

Also i recommend the DuPont Teflon Chain Lube. It's dry to the touch so it doesn't fling everywhere and doesn't have build up issue like the Wax Type chain lubes (Maxima Chain Lube).

DeadmTrigger wrote:

The O-ring chain is supposedly prevent dirt into getting into the chains links but it still does and it never comes out. The non O-ring chain is easier to clean out.

Hmm?
Unless we're talking about an O- or X-ring chain with lots of miles on it and it's just worn out, I've never had this problem.