Parts Unlimited Standard Inner Tubes

The Parts Unlimited standard inner tube offers a high quality tube at a great price. Especially now as prices keep surging higher. These tubes are built to the highest OEM standards. "Real butyl tubes" made from 100% butyl polymer, unlike other "butyl" tubes, which are blended with butyl polymer and natural rubber

Features:

• TR-4 valve stems
• Each tube is individually boxed with a full range of sizes and valve stem types clearly marked on each box end
• 100% butyl tube minimizes natural air leakage while maintaining air pressure for a longer period of time

Sizing:

• 21 Inch - 80/100-21, 90/90-21, 90/100-21, 100/80-21, 2.75-21, 3.00-21 
• 19 Inch - 110/90-19, 120/80-19, 120/90-19 - Most 250cc and 450cc MX Bikes
• 19 Inch - 100/90-19, 110/80-19 - Most 125cc - 250cc MX Bikes
• 19 Inch - 70/100-19, 90/100-19, 100/90-19 - Front Wheels
• 18 Inch - 110/100-18, 4.00-18, 5.10-18 - 250cc - 650cc Offroad Bikes
• 18 Inch - 3.50-18, 4.00-18
• 18 Inch - 100/100-18, 3.25-18, 4.10-18 - 125cc - 250cc Offroad Bikes
• 17 Inch - 110/100-17, 4.00-17, 5.10-17 - SM Bikes and ADV Front Wheels