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Money-Saving Performance & Toughness

STI Motorcycle Tubes are strong, stronger, strongest. At 2mm thick, the “Heavy Duty” model is 50 percent thicker than most standard tubes on the market today. The “Extreme Duty” butyl rubber uses a 3mm spec, making it 30 percent beefier than most heavy-duty tubes now available. The “Ultra Heavy Duty” tubes utilize a nearly bombproof 4mm thickness.

Economical as well as durable, the STI Motorcycle Tubes are priced considerably less than comparable rivals. STI has earned a reputation for delivering remarkably high-value tire and wheel products; that philosophy now applies to tubes as well.

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detail
  1. Heavy Duty: High-quality butyl rubber is 50% thicker than most standard tubes.
  2. Motocross Action magazine gave the Heavy Duty tubes a 4-Star rating.
  3. Extreme Duty: At 3mm thick, this tube is 30% beefier than other heavy-duty tubes.
  4. Ultra Heavy Duty: Using 4mm thick rubber, this Ultra Heavy Duty tube will keep you riding.


Sizes & Specs:

STI HEAVY DUTY TUBES
SIZE THICKNESS VALVE PART #
2.50/2.75-10 2mm TR-4 TB0010H
2.50-12 2mm TR-4 TB0020H
80/100-12 (3.00/3.25-12) 2mm TR-4 TB0030H
60/100-14 (2.25/2.50-14) 2mm TR-4 TB0040H
90/100-14 (3.60/4.10-14) 2mm TR-6 TB0050H
90/100-16 (3.50-16) 2mm TR-6 TB0060H
70/100-17 (2.25/2.50-17) 2mm TR-4 TB0070H
100/100-18 (4.00-18) 2mm TR-6 TB0080H
110/120/100-18 (4.50/5.00-18) 2mm TR-6 TB0090H
70/100-19 (2.50/2.75-19) 2mm TR-4 TB0100H
100/90-19 (4.00-19) 2mm TR-6 TB0110H
110/120/90-19 (4.50/5.00-19) 2mm TR-6 TB0120H
80/100-21 (3.00/3.25-21) 2mm TR-6 TB0130H
STI EXTREME DUTY TUBES
SIZE THICKNESS VALVE PART #
2.50/2.75-10 3mm TR-4 TB0010X
2.50-12 3mm TR-4 TB0020X
80/100-12 (3.00/3.25-12) 3mm TR-4 TB0030X
60/100-14 (2.25/2.50-14) 3mm TR-4 TB0040X
90/100-14 (3.60/4.10-14) 3mm TR-6 TB0050X
90/100-16 (3.50-16) 3mm TR-6 TB0060X
70/100-17 (2.25/2.50-17) 3mm TR-4 TB0070X
100/100-18 (4.00-18) 3mm TR-6 TB0080X
110/120/100-18 (4.50/5.00-18) 3mm TR-6 TB0090X
70/100-19 (2.50/2.75-19) 3mm TR-4 TB0100X
100/90-19 (4.00-19) 3mm TR-6 TB0110X
110/120/90-19 (4.50/5.00-19) 3mm TR-6 TB0120X
80/100-21 (3.00/3.25-21) 3mm TR-6 TB0130X
STI ULTRA HEAVY DUTY TUBES
SIZE THICKNESS VALVE PART #
110/120/100-18 (4.50/5.00-18) 4mm TR-6 TB0090U
110/120/90-19 (4.50/5.00-19) 4mm TR-6 TB0120U
80/100-21 (3.00/3.25-21) 4mm TR-6 TB0130U

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