Rear sprocket cross reference.

[Footy]

I am trying to figure out if the ATC350X rear sprocket is the same as one of the more popular TRX models, say the 300 or 400EX or 450R. My 350X does not have a swingarm skid plate. I am thinking about using one of the sprocket rings (like BCC sells) but I am not sure which one would fit as these are not specifically offered for ATC models. My thinking is that if the 350X shares the rear sprocket mounting with another TRX then that sprocket guard would probably fit the ATC.

[HairyJR]

Which year model 350x do you have? '85 use a thru bolt and nut where the '86 uses a countersunk bolt head and nut.

"HJ"

[Footy]

Which year model 350x do you have? '85 use a thru bolt and nut where the '86 uses a countersunk bolt head and nut.

"HJ"

Excellent question. From what I can see this 350X is a blend of both years. I do see nuts holding the rear sprocket onto the sprocket hub so I will have to guess that that part is from a 1985. This might make using the ring style sprocket guard tricky or impossible. I need to compare this setup more closely to my TRX450R.