Wtb nine line tcs light fast rolling tyre the nine line is the new school approach to a top notch 29 inch specific lightweight race tire our global team of racers collaborated to make a tire with the ability to accelerate and roll like no other its micro square knob tread design and supple casing provide impressive traction to keep you in control while you haul the mail tcs tubeless compatible system based on ust and etrto standards tcs tires feature square shaped tubeless beads and du