Description
Track & Competition in 305/30R21, load index 104, Y-rated (186 mph). Track compound. Sold per tire.
A track-day compound that is still street legal. It needs heat to work properly, wears fast when used hard, and hydroplanes early — drive it to the circuit, do not commute on it.
Reading the size
305/30R21 — section width in millimetres, then aspect ratio as a percentage of that width, then rim diameter in inches. The 104 load index and Y speed rating must meet or exceed what the manufacturer specified for your car; going below either one is an inspection failure and an insurance problem.
Mounting
We can mount and balance these to wheels bought in the same order, transfer your TPMS sensors, and ship the assembly ready to bolt on. Tires ordered on their own ship ground, uninflated.
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