O-ring chain on 03 CRF450

[Dozerpilot]

Do you need a spacer to clear the case? My friend just ordered a o-ring chain and a set of primary drive steel sprockets for his 03 CRF450. He heard that the chain could rub the case at the front sprocket. Any truth to this? Thanks in advance.

 

[Farmer John]

I have seen some clear the cases no problem, & I have seen a few that had to be spaced. My buddies 03 needed 3 of those Fastway 1mm spacers before a Regina X-ring would clear.

Spacer on the bottom of this page: http://www.fastwayperformance.com/bikeprotection/

 

[Jaybird]

I hate spacers. You cannot properly align the chain drive when you space out the CS sprocket.
Maybe I'm just anal. (shrug)

 

[g_man80]

On the following link that Quicksilver gave me the stock chain is listed as being an O-ring. I'm not sure if it is correct or maybe Regina, DID, ect. o-ring chains are slightly thicker.

---> 2003 CRF240 specs

 

[Dozerpilot]

Hey thanks guys! He didn't order any spacers, and didn't say what brand the chain is. I think he just ordered the Primay Drive kit from Rocky Mountain MC. I guess we'll find out tommorrow. Thanks again.

 

[krosser]

The DID X ring gold is the thinnest but it is still tight. It is also up there with the strongest. Sidewinder rec a spacer but their chain is wider than the DID. Most web sites give dimensions and i don't fancy a spacer.

 

[kd7akn]

Spacer?

:think:

On the following link that Quicksilver gave me the stock chain is listed as being an O-ring. I'm not sure if it is correct or maybe Regina, DID, ect. o-ring chains are slightly thicker.

---> 2003 CRF240 specs

My '03 did not come with an O-Ring chain. I did put a DID X-Ring on with a spacer. Very tight without one.

 

[g_man80]

:think:

My '03 did not come with an O-Ring chain. I did put a DID X-Ring on with a spacer. Very tight without one.

Mine doesn't have one either. I thought it was strange when I read it. I guess those are more 'guessifications' than specifications :) .