Tredder specializes in supplemental insurance for "adventure" vehicles. According to the company, an adventure vehicle is an extensively modified vehicle outfitted for self-reliant long distance travel. This includes motorcycles, cars, trucks, SUVs, vans, and RVs.

Tredder insurance offers full replacement value coverage for a variety of aftermarket modifications, including but not limited to:
- Performance upgrades: Engine modifications, turbochargers, superchargers
- Suspension systems: Lifts, leveling kits, off-road suspension components
- Exterior modifications: Body kits, custom paint jobs, aftermarket wheels and tires
- Interior modifications: Custom seats, audio systems, and other interior upgrades

Tredder insurance premiums are generally calculated based on several factors, including:
- Type and value of modifications: The more extensive and expensive the modifications, the higher the premium.
- Vehicle type and value: High-performance vehicles or luxury cars with modifications may attract higher premiums.
- Driver's history: Insurance companies consider factors such as age, driving record, and claims history when determining premiums.
Location: Geographic location can influence premiums due to factors like theft rates and natural disaster risks.

Tredder has a 24/7 hotline for assistance and help filing a claim. Many customers report positive experiences with Tredder's customer service representatives, who are knowledgeable and helpful in answering questions and resolving issues.