Schumacher Shimizu F1 V2 Pre-Mounted Rear Rubber Carpet Tires (2) (Soft)

These tires are great for carpet racing only (The 575C). They are broken in in 2 runs of 5 minutes and the rears are the tires you should look after every run; you'll want to inspect the outer glue from the rim/tire section as it's easily prone to deglue from damage in crashes or degluing when using a spool. The only reason I give these a 4 star is because version C of the tire does have occasional defects in the seam section which can cause the tire to burst in a sweeper (This was fixed on version D of the tire). Note that these tires do not work at all for asphalt

Soft compound worked great on crc black carpet. Do check clearances between wheel and chassis during articulation, had to space rear wheels outward 1.5mm on x1 23 chassis due to inference.