RADIAL OFF THE ROAD TIRE LIMITED WARRANTY
ELIGIBLE PARTY OF THIS LIMITED WARRANTY
This limited warranty covers all radial OTR tires presented & provided by OTR Tire Thai
The original purchaser or authorized agent of the original purchaser of new OTR Tire Thai brand radial off the road tires bearing complete serial numbers are eligible for the benefits of this limited warranty.
WARRANTY PERIOD
The limited warranty is in effect for 4 years commencing on the date of issue on Bill of Lading(B/L), or the date of manufacture indicated on the serial number.
COVERAGE
Under the circumstances that an Ortec radial OTR tire becomes unserviceable due to manufacturing defects, such tire will be covered by this limited warranty. OTR Tire Thai , at its option, will:
repair or replace it with a comparable new OTR radial tire;
discount on a pro rata basis, or issue an appropriate credit in favor of the eligible party.
The customer charge for replacement will be calculated by [Adjustment Benchmark Price (exclusive of taxes)] × [adjustment percentage determined in the following chart]. In the event OTR Tire Thai issues a credit, the credit will reflect the discount that would have been included in the foregoing charge.
Percentage of Remaining Tread Depth(RTD%) | |||||||||
91% to 100% | 81% to 90% | 71% to 80% | 61% to 70% | 51% to 60% | 41% to 50% | 31% to 40% | 21% to 30% | 0 to 20% | |
Tire age | OTR Tire Thai’s Compensation | ||||||||
≤180 days | Based on percentage of remaining tread depth | ||||||||
181th day to 12 months | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 0% |
24 months or less | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% | 0% |
36 months or less | 60% | 50% | 40% | 30% | 20% | 15% | 10% | 5% | 0% |
More than 36 months | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
MEASUREMENT AND CALCULATION OF REMAINING TREAD DEPTH
When measuring, a vernier caliper (or professional caliper) shall be used and the measurement point shall be kept away from the wearing mark. And the vernier caliper (or professional caliper) must be vertical to the bottom of the groove. The point of measurement should be at one groove along the crown centerline or the main groove closest to the tread centerline. Please keep away from ribs and wearing marks when measuring.
Calculation of the remaining tread depth: Measure the depth of four quartering positions around the tire, and the average value of the four positions is regarded as the remaining tread depth.
CASES NOT COVERED BY THIS LIMITED WARRANTY
Tires repaired, retreaded or sold as scrap tires
Date of issue of B/L is more than 48 months prior to presentation for adjustment. When B/L copies are not available or was not recorded, tires manufactured 48 months prior to presentation.
Tires removed from service more than six months prior to presentation to OTR Tire Thai.
Irregular wear or tire damage due to: accidents (including puncture, cuts, impact breaks), collision, fire; improper tire mounting, demounting or management including misalignment, wheel imbalance, inflation; misapplication or misuse; improper operations including overload operation, over-speed, abnormal vibration and brake; vehicle mechanical damage; Improper repair and storage.
Mounted with improper inner tube, resistance board and O-ring
The appearance of tires that are intentionally changed
Tires to which materials such as fillers, sealant, ballast or balancing substances intentionally added
Repairs or Retreads.
OTHER
After a claim is settled, the failure tire shall be in the possession of OTR Tire Thai and be retained, by its authorized agent or itself, for 3 months before being disposed of.
OTR Tire Thai does not bear any indirect loss, time loss, vehicle loss within the allowable scope of the law.
RADIAL OFF THE ROAD TIRE LIMITED WARRANTY
ELIGIBLE PARTY OF THIS LIMITED WARRANTY
This limited warranty covers all radial OTR tires presented & provided by OTR Tire Thai.
The original purchaser or authorized agent of the original purchaser of new OTR Tire Thai brand radial off the road tires bearing complete serial numbers are eligible for the benefits of this limited warranty.
WARRANTY PERIOD
The limited warranty is in effect for 4 years commencing on the date of issue on Bill of Lading(B/L), or the date of manufacture indicated on the serial number.
COVERAGE
Under the circumstances that an Ortec radial OTR tire becomes unserviceable due to manufacturing defects, such tire will be covered by this limited warranty. OTR Tire Thai , at its option, will:
repair or replace it with a comparable new OTR radial tire;
discount on a pro rata basis, or issue an appropriate credit in favor of the eligible party.
The customer charge for replacement will be calculated by [Adjustment Benchmark Price (exclusive of taxes)] × [adjustment percentage determined in the following chart]. In the event OTR Tire Thai issues a credit, the credit will reflect the discount that would have been included in the foregoing charge.
Percentage of Remaining Tread Depth(RTD%) | |||||||||
91% to 100% | 81% to 90% | 71% to 80% | 61% to 70% | 51% to 60% | 41% to 50% | 31% to 40% | 21% to 30% | 0 to 20% | |
Tire age | Ortec’s Compensation | ||||||||
≤180 days | Based on percentage of remaining tread depth | ||||||||
181th day to 12 months | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 0% |
24 months or less | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% | 0% |
36 months or less | 60% | 50% | 40% | 30% | 20% | 15% | 10% | 5% | 0% |
More than 36 months | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
SEMI TRUCK & TBR TIRE WARRANTY POLICY
Warranty Policy for Truck & Bus Radial (TBR) Tires
General Rubber (Thailand) Co., Ltd. provides a comprehensive warranty program for all Truck & Bus Radial (TBR) tires, ensuring consistent quality, durability, and performance for commercial and long-haul applications.
Our warranty is designed to protect importers, distributors, and fleet operators by guaranteeing that every tire meets strict manufacturing and performance standards.
Warranty Coverage
All TBR tires are covered against manufacturing defects in materials and workmanship under normal usage conditions.
Coverage Includes:
Structural defects
Tread separation
Sidewall manufacturing faults
Workmanship-related failures
Warranty Period
The warranty is valid for:
Up to 5 years from the date of manufacture (DOT code)
ORUntil the tire reaches minimum tread depth (end of usable life)
👉 Whichever comes first.
Pro-Rated Warranty Policy
If a defect is confirmed, compensation will be provided on a pro-rated basis, depending on the remaining tread depth.
Example:
80% tread remaining → higher credit value
30% tread remaining → lower credit value
This ensures fair value based on actual tire usage.
Claim Process
To file a warranty claim, customers must provide:
Clear photos of the defective tire
DOT number and serial details
Usage information (vehicle type, load, application)
Purchase invoice or container shipment reference
Our technical team will evaluate the claim and respond within 3–7 business days.
Exclusions (Important)
This warranty does NOT cover damage caused by:
Overloading or improper inflation
Road hazards (cuts, punctures, impact damage)
Improper installation or misalignment
Unauthorized repairs or modifications
Irregular wear due to poor maintenance
Quality Assurance Commitment
All TBR tires are manufactured under strict quality control systems and comply with international standards such as:
DOT (USA compliance)
ECE (European compliance)
ISO-certified production processes
Each tire undergoes multiple inspection stages before shipment to ensure consistent performance in demanding commercial environments.
Designed for Commercial Reliability
Our semi-truck tires are engineered for:
Long-haul transportation
Heavy load capacity
High mileage performance
Fuel efficiency optimization
This makes them ideal for fleet operators, logistics companies, and wholesale distributors across global markets.
Support for Global Buyers
We support our international clients with:
Fast warranty claim handling
Technical support and guidance
Long-term supply reliability
Contact for Warranty Claims
For warranty inquiries or claims:
👉 Contact our support team with complete documentation to ensure fast processing and resolution.
MEASUREMENT AND CALCULATION OF REMAINING TREAD DEPTH
When measuring, a vernier caliper (or professional caliper) shall be used and the measurement point shall be kept away from the wearing mark. And the vernier caliper (or professional caliper) must be vertical to the bottom of the groove. The point of measurement should be at one groove along the crown centerline or the main groove closest to the tread centerline. Please keep away from ribs and wearing marks when measuring.
Calculation of the remaining tread depth: Measure the depth of four quartering positions around the tire, and the average value of the four positions is regarded as the remaining tread depth.

CASES NOT COVERED BY THIS LIMITED WARRANTY
Tires repaired, retreaded or sold as scrap tires
Date of issue of B/L is more than 48 months prior to presentation for adjustment. When B/L copies are not available or was not recorded, tires manufactured 48 months prior to presentation.
Tires removed from service more than six months prior to presentation to OTR Tire Thai .
Irregular wear or tire damage due to: accidents (including puncture, cuts, impact breaks), collision, fire; improper tire mounting, demounting or management including misalignment, wheel imbalance, inflation; misapplication or misuse; improper operations including overload operation, over-speed, abnormal vibration and brake; vehicle mechanical damage; Improper repair and storage.
Mounted with improper inner tube, resistance board and O-ring
The appearance of tires that are intentionally changed
Tires to which materials such as fillers, sealant, ballast or balancing substances intentionally added
Repairs or Retreads.
OTHER
After a claim is settled, the failure tire shall be in the possession of OTR Tire Thai and be retained, by its authorized agent or itself, for 3 months before being disposed of.
OTR Tire Thai does not bear any indirect loss, time loss, vehicle loss within the allowable scope of the law.
BIAS OFF THE ROAD TIRE LIMITED WARRANTY
ELIGIBLE PARTY OF THIS LIMITED WARRANTY
This limited warranty covers all bias OTR tires presented & provided by OTRTireThai.
The original purchaser or authorized agent of the original purchaser of new OTRTireThai brand bias off the road tires bearing complete serial numbers are eligible for the benefits of this limited warranty.
WARRANTY PERIOD
The limited warranty is in effect for 3 years commencing on the date of issue on Bill of Lading(B/L), or the date of manufacture indicated on the serial number.
COVERAGE
Under the circumstances that a OTRTireThai bias OTR tire becomes unserviceable due to manufacturing defects, such tire will be covered by this limited warranty. OTRTireThai , at its option, will:
repair or replace it with a comparable new bias OTR tire
discount on a pro rata basis, or issue an appropriate credit in favor of the eligible party.
CALCULATION OF ADJUSTMENT
The customer charge for replacement will be calculated:
(remaining tread depth)-(Original tread depth)
[Original purchasing price (exclusive of taxes)] × ——————————————————(Original tread depth)
In case of any failure tire is proved to bear manufacturing defects and the tire wearing is less than 2.00mm, OTRTireThai will give 100% adjustment as per the purchasing price.
Once the tread remaining depth is less than 2.00MM, the tyre is considered worn out and no adjustment will be given.
MEASUREMENT AND CALCULATION OF REMAINING TREAD DEPTH
When measuring, a vernier caliper (or professional caliper) shall be used and the measurement point shall be kept away from the wearing mark. And the vernier caliper (or professional caliper) must be vertical to the bottom of groove. The point of measurement should be at one groove along the crown centerline or the main groove closest to the tread centerline. Please keep away from ribs and wearing mark when measuring.
Calculation of the remaining tread depth: Measure the depth of four quartering positions around the tire, and the average value of the four positions is regarded as the remaining tread depth.
CASES NOT COVERED BY THIS LIMITED WARRANTY
Tires repaired, retreaded or sold as scrap tires
Date of issue of B/L is more than 48 months prior to presentation for adjustment. When B/L copies are not available or was not recorded, tires manufactured 48 months prior to presentation.
Tires removed from service more than six months prior to presentation to OTRTireThai .
Irregular wear or tire damage due to: accidents (including puncture, cuts, impact breaks), collision, fire; improper tire mounting, demounting or management including misalignment, wheel imbalance, inflation; misapplication or misuse; improper operations including overload operation, over-speed, abnormal vibration and brake; vehicle mechanical damage; Improper repair and storage.
Mounted with improper inner tube, resistance board and O-ring
Appearance of tires that are intentionally changed
Tires to which materials such as fillers, sealant, ballast or balancing substances intentionally added.
Repairs or Retreads.
OTHER
After a claim is settled, the failure tire shall be in the possession of OTRTireThai and be retained, by its authorized agent or itself, for 3 months before being disposed.
OTRTireThai does not bear any indirect loss, time loss, vehicle loss within allowable scope of the law.
