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View Full Version : 19's or 20" Up front for MX?


400ex_rider13
08-21-2007, 03:44 PM
I'm just wondering what's better for mx. 19 or 20 up front? These tires with only be ridden on MX tracks. What's better? Pros & Cons? Thanks Kyle.
08-21-2007, 04:02 PM
My tires are exactly 20" up front and 19.5" rears. Soon I will have 20" rears too. For MX you want a lower ride height so you have less body roll therefore you can take tighter turns faster and have better control. I dont really have experience with MX but I know most run 18" rears, i'll find a little more and get back to you about the fronts.
08-21-2007, 04:04 PM
Alright I have seen 20" fronts and 19" rears and 19" fronts and 18" rears. So would it be bad for me then if I had 20" fronts and 20" rears?
mx1791
08-21-2007, 04:24 PM
you feel more virabtion/bumps with 19 inch fronts, so unless you have flexx bars or an anti vibe stem, stay away from 19in fronts. 20in fronts and 18in rears would be the best for the track.
08-21-2007, 04:51 PM
in my case would it be weird to have 20"fronts and 20"backs?
NacsMXer
08-21-2007, 05:06 PM
Originally posted by FoxHondaRider
in my case would it be weird to have 20"fronts and 20"backs?

20" rears are a little tall for the MX track. You can manage, but you will have a far easier time with 18" rears.
400ex_rider13
08-21-2007, 05:28 PM
Originally posted by mx1791
you feel more virabtion/bumps with 19 inch fronts, so unless you have flexx bars or an anti vibe stem, stay away from 19in fronts. 20in fronts and 18in rears would be the best for the track.

Back to the topic. Now I have a Houser stem and Pro taper bars, with 19's up front would I still get that vibration & bumps ?
mx1791
08-21-2007, 08:53 PM
no, the anti vibe stem will take care of that. if you didnt already buy them, get 20's they will just ride better, esp with your stem
bah1491
08-29-2007, 09:29 AM
Ive ran 19" fronts, i found that i couldnt keep the frame off the ground sometimes going through ruts....I run 20" up front 18" in the rear....
allstock
08-29-2007, 04:03 PM
19's are a rougher ride just go with 20's and foxhondarider you dont want to have the same size front and rear tires your rears should always be atleast 1 inch smaller
08-29-2007, 05:19 PM
I know, but I cant afford to just replace my fronts, they are like new. Would my quad sit higher in the back than in the front then with 20's all around?