18" and 20" tires

[400exrider0004]

I am buying tires for my 400ex. I am wondering what 18" tires are for and what 20" tires are for. I hear that 18" is for MX and 20" is for trails. Is this right? I am buying ITP MXR4 tires by the way. Any opinions on tire choices will be appreciated! Thanks in advance for your help!

Josh

[bansheemorphine]

18 inch tires are usually for mx yes and 20 i have saw been used for trails and mx if u r going to be riding trails i would suggest 22s the mxr4 r a great mx tire but they r soo soft they usually wear out quickly so a good tire for mx tht would last longer would be like the kenda klaw mx

[400exrider0004]

I ride trails about once every other month and I dont ride hard like you guys do in the trails. :) So would the MXR4 last in those conditions? Also do any of you have pictures with either the ITP XCR tires on your 400ex or the MXR4s on your 400ex, thanks.

[quad2xtreme]

Personally, I would go with a Maxxis tire for trail riding. The tread is harder. Do the MXR4s come in a 4-ply? You definitely don't want a 2-ply unless you want to constantly be fixing flats.

/jon