Ultralight and robust: The Tubo-MTB-Plus Made from high-quality TPU and weighing just 43 grams, the Tubo-MTB-Plus offers the ideal combination of lightness and robustness. The durable bicycle tube fits all 27.5" and 29" racing bike tires with a width between 2.5" and 3.0". The combined sizes makes it an ideal choice for “mullet” bikes and a great spare tube if you’re riding with a partner with a different tire size. Tubo-MTB-Plus is ready for disc brakes. Years of research and countless testing procedures ensure that our high-tech tubes live up to their name. Today we have developed manufacturing processes that exploit the full potential of the high-tech material TPU for bicycle tubes. The needle puncture test shows that Tubolitos are twice as resistant to punctures as conventional butyl tubes. In addition, they offer comparable air retention and pass the brake test according to DIN 4210 with both aluminum and carbon rims. If a puncture does occur, the tube can be easily repaired wit...