RooftopTentCompare

Overland Vehicle Systems HD Sidewinder vs Overland Vehicle Systems XD Atlas Cantilever ABS

Both of these are Overland Vehicle Systems tents, so the question is not which brand to trust but which size and configuration suits your vehicle and how you camp. The HD Sidewinder and the XD Atlas Cantilever ABS share Overland Vehicle Systems's construction and warranty; where they part company is in the numbers below.

The XD Atlas Cantilever ABS is 18.200000000000003 kg lighter at 81.6 kg against 99.8 kg, which on a factory roof rated for 68 to 75 kg is often the difference between a legal fit and a rack upgrade. Floor area is close to identical at 3.21 m² and 3.37 m², so neither wins on sleeping room. The HD Sidewinder lists $400 lower, at $2,499.99 against $2,899.99. Overland Vehicle Systems also backs the XD Atlas Cantilever ABS for 6 years against 4.

The HD Sidewinder uses honeycomb aluminum; the XD Atlas Cantilever ABS uses ABS plastic over aluminum honeycomb base. Canvas differs too: 280g rip stop poly cotton Oxford against 320g rip stop poly cotton Oxford. The XD Atlas Cantilever ABS adds a heater or HVAC port, a roof skylight and integrated LED lighting, which the HD Sidewinder does not offer. Closed, the HD Sidewinder sits 16.51 cm lower on the roof — 16.51 cm against 33.02 cm — which is drag you carry on every mile you are not camping.

Overland Vehicle Systems

HD Sidewinder

The HD Sidewinder is a side-opening (side-load) aluminum clamshell for two, with a long 90 x 51.5 in sleeping area and 48 in interior height. OVS lists it without interior lighting, skylight or heater port and gives a 4-year fabric and structural warranty. Dry weight is 220 lb and packaged weight 277 lb.

  • Side-load opening suits certain rack layouts
  • Long 90 x 51.5 in sleeping area
  • Thicker 2.5 in mattress
  • No interior lighting, skylight or heater port

Overland Vehicle Systems

XD Atlas Cantilever ABS

The XD Atlas is a cantilever hardshell using an ABS-plastic shell over an aluminum honeycomb base, sleeping two. It comes with LED interior lighting, a skylight, integrated crossbars and a heater/AC port, and carries a 6-year fabric with limited lifetime structural warranty. At 180 lb dry it is lighter than OVS's aluminum-shell XD models; OVS does not publish the mattress thickness or interior height for this model.

  • Relatively low 180 lb dry weight for a hardshell
  • LED, skylight, crossbars and heater/AC port included
  • 6-year fabric / limited lifetime structural warranty
  • Manufacturer does not publish mattress thickness

Which one to pick

Take the XD Atlas Cantilever ABS if your roof load limit is the binding constraint. Take the HD Sidewinder if the budget is fixed. Beyond that the feature rows below — heater port, skylight, annex, cargo rails — are where the remaining difference lies.

Every specification, side by side

Side-by-side specifications for Overland Vehicle Systems HD Sidewinder, Overland Vehicle Systems XD Atlas Cantilever ABS
Specification

Overland Vehicle Systems

HD Sidewinder
Hardshell
  • Cheapest
Check current price

Overland Vehicle Systems

XD Atlas Cantilever ABS
Hardshell
  • Lightest
  • Most floor space
  • Longest warranty
Check current price
Overview
TypeHardshellHardshell
Opening styleClamshellClamshell
Sleeps22
Season rating
List price$2,499.99— best of the tents compared$2,899.99— worst of the tents compared
Weight and size
Weight220 lb— worst of the tents compared180 lb— best of the tents compared
Packed length7 ft 6 in— worst of the tents compared5 ft— best of the tents compared
Packed width4 ft 7 in— worst of the tents compared4 ft 4 in— best of the tents compared
Packed height6.5 in— best of the tents compared13 in— worst of the tents compared
Living space
Sleeping length7 ft 6 in— best of the tents compared7 ft 3 in— worst of the tents compared
Sleeping width4 ft 7 in— worst of the tents compared5 ft— best of the tents compared
Floor area34.6 sq ft— worst of the tents compared36.3 sq ft— best of the tents compared
Interior height4 ft
Mattress thickness2.5 in
Setup and build
Setup timeManufacturer's claim where published; otherwise estimated from tent type. Expect longer in practice.2 min2 min
Shell materialHoneycomb aluminumABS plastic over aluminum honeycomb base
Fabric280g rip stop poly cotton Oxford320g rip stop poly cotton Oxford
Warranty4years— worst of the tents compared6years— best of the tents compared
Features
Integrated LED lightingNoYes
Heater / HVAC portNoYes
Roof skylightNoYes
Annex availableYes
Solar ready
Carries cargo on topYesYes
Sources
Last verifiedOverland Vehicle Systems product pageOverland Vehicle Systems product page

Related comparisons

Or read the full spec sheets for the Overland Vehicle Systems HD Sidewinder and the Overland Vehicle Systems XD Atlas Cantilever ABS.