I have razorbacks(the cheap ones-not skat traks) and they do help. Mainly when sidehilling and such, but also when turning in general. They do tend to grab ruts a little bit more, so mohawks may work better for not being so grabby. I dune rode for 20 yrs without them and just used dirt tires. I say buy them, as it's only money and you already have a ton in LSR HAHA. $800 carb, may as well have some mohawks too. I bought the wider, but not taller front sand tires(21x8x10 I believe). I bought them for like $43 a tire and put them on the cheap STI wheels(I forget the brand of tire-not kenda tho). They weren't a bad investment for the price, but they don't make the dif that rears do. A stabilizer will prob be my next investment(after that road race bike I showed you last nite LOL). Time to buy some leathers if it makes it thru the weekend!