The Michelin tube best seller. Pressure hold: Effective pressure hold through use of butyl. Strenght: Better puncture protection. Specification table, td { padding-top: 5px; padding-bottom: 5px; padding-left: 5px; border-collapse:collapse; border-spacing: 2px; color: #0945B2; } th { padding-top: 8px; padding-bottom: 8px; padding-left: 8px; border-bottom: none; background-color: #FCE500; text-align: left; font-size: 10.5px; color: black; } tr { border-bottom: none; font-size: 10.5px; } tr.blue { border-bottom: none; background-color: #E6F6FC; } PART # Valve Length Type ETRTO Size Weight 004185 Presta 48mm MTB 47/61-559 26 x 1.85 - 2.40" 200g 191666 STD 48mm MTB 47/61-559 26" x 1.85 - 2.40" 205g 752851 Presta 48mm MTB 47/61-584 27.5" x 1.85 - 2.40" 216g 141706 STD 48mm MTB 47/61-584 27.5" x 1.85 - 2.40" 220g 668182 STD 48mm MTB 47/61-622 29" x 1.85 - 2.40" 232g 408157 Presta 48mm MTB 47/61-622 29" x 2.4 - 3.1" 370g 322289 STD 48mm MTB 62/77-622 29" x 2.45 - 3.00" 370g 935585 STD 48mm MTB 62/77-584 29" x 2.45 - 3.00" 340g 335795 PRESTA 48mm MTB 47/61-622 26" x 1.85 - 2.4" 227g 716374 PRESTA 48mm MTB 62/77-584 27.5" x 2.45 - 3.00" 227g 468648 PRESTA 48mm MTB 33/46-584 27.5" x 1.3 - 1.8" 143g