The Surge S from CST comes from a long line of racing tires. Widely spaced knobs shed mud for consistent, confidence-building traction. Specially designed for soft terrain motocross or cross-country riding, the Surge S is formulated from a rubber compound that offers exceptional durability.
NOTE: Dennis Kirk recommends a new tube and rim strip when replacing a tube-type tire Safety Warning: Please consult tire manufacturers publication(s) and/or website(s) for information on tire care, safety, installation, maintenance, manufacturer’s warranty and other information. The tires used for your application must have a load index and speed rating equal to or greater than the tires fitted as original equipment.
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Balance Dot | Yes |
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Deepest Tread Depth | 14/32 in. |
Directional Arrow | No |
DOT Approved for Road Use | No |
Inflation Pressure | 32 psi |
Load Capacity | 430 lbs. |
Mfg #: | TM88240000 |
Min Rim Width | 1.85 in. |
Part #: | 643411 |
Position - Tire | Front |
Sidewall ID Info | CST Surge S 80/100-21 M/C NHS 51M |
Speed Rating | M(81 MPH) |
Tire Classification | Soft Terrain |
Tire Construction | Bias |
Tire Size | 80/100-21 |
Type | Tires - Dirt Bike |
Type | Tube |
Units | Each |
Weight | 8.45 lbs |
Part 643411 fits the following machines