Overview Reviews Product Description Heavy duty inner tubes constructed from natural rubber blend Excellent service and puncture resistance TR-type valve stems. TUBE 60/100-14 TR4 Product Videos Custom Field Product Reviews Write a Review Write a Review × PIRELLI Pirelli Inner Tube 2598610 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *