The Collins Hi-Speed®? SLZ is Collins’ sixth-generation dolly, trusted since 2016 for its proven performance, durability and value. If you’re looking for a fully capable, dependable vehicle dolly at one of the most economical price points in the market, the SLZ is the obvious choice.
Built for demanding professional use, the SLZ delivers the strength and safety Collins Hi-Speed®? Dollies are known for while maintaining a compact design. Collins Hi-Speed®? Dollies are engineered as safe, lightweight prime-movers of vehicles, offering an exceptional load capacity of up to 25 times their own weight with no towing-distance restrictions.
These dollies have been tested to 1,600 freeway miles, including rigorous testing at the GM Proving Grounds in the U.S. and the MIRA Proving Grounds in the U.K. for European certification. This dependable solution is a great investment for towing companies due to their superior performance, adaptability and safety features.
With a high towing capacity and lightweight design for easy handling, they cater to various vehicle types, ensuring both operators and vehicles stay safe with an innovative Safety Ratchet System and True Positive Camber. The Collins Hi-Speed®? Dolly is built with high-quality materials and expert workmanship for years of reliable service.
This set includes:
- 2 Hi-Speed®? Dolly bodies
- 1 pair telescoping Cross Rail axles
- 1 aluminum pry bar
- 2 tie-down straps
Dolly Tires
- 4.80 × 8, Load Range C
- Static load rating: 760 lb. @ 90 PSI per tire
- 3,040 lb. per set static load rating
- Rated 3,040 lb. @ 55 MPH
- Rated 2,865 lb. @ 60 MPH
- Metric rating: 345 kg @ 6.2 Bar per tire
- 1,379 kg per set static load rating
- 1,379 kg @ 88 KPH
- 1,300 kg @ 97 KPH
- Diamond cut aluminum wheels
Collins T-10 Cross Rails
- Telescopic aluminum construction
- 10-hole center-cambered design
- 59″ outside dimension when fully collapsed
- 90″ usable span when fully extended
- True positive camber incorporated into both the ends and tubing material
Dolly Dimensions
- Loaded length: 46.0″
- Stowed length: 36.5″
- Height: 16.5″
- Depth: 10.0″
| Zip's Part # |
Collins Part # |
Dolly Frame & Name |
Tire |
Cross Rails |
Hubs |
Wheels |
Weight |
Capacity |
Speed Rating |
| SL-570SD |
HSD-H5D |
SLZ (6th Generation) Hero |
5.70x8 D Rated |
Aluminum T12 |
Aluminum |
Aluminum |
230 lbs |
4280 lbs |
65 MPH |
| SL-480SD |
HSD-H4D |
SLZ (6th Generation) Hero |
4.80x8 D Rated |
Aluminum T12 |
Aluminum |
Aluminum |
214 lbs |
3968 lbs |
65 MPH |
| SL-570AD |
HSD-P5D |
SLZ (6th Generation) Pro |
5.70x8 D Rated |
Aluminum T10 |
Aluminum |
Aluminum |
176 lbs |
4280 lbs |
65 MPH |
| SL-480AD-D |
HSD-P4D |
SLZ (6th Generation) Pro |
4.80x8 D Rated |
Aluminum T10 |
Aluminum |
Aluminum |
160 lbs |
3968 lbs |
65 MPH |
| SL-480AD |
HSD-P4C |
SLZ (6th Generation) Pro |
4.80x8 C Rated |
Aluminum T10 |
Aluminum |
Aluminum |
156 lbs |
3040 lbs |
65 MPH |
| SL-480AS |
HSD-R4C |
SLZ (6th Generation) Repo |
4.80x8 C Rated |
Aluminum T10 |
Aluminum |
Steel |
156 lbs |
3040 lbs |
65 MPH |