Head-to-head · Best Roof Cargo Boxes

INNO Wedge 660 vs Thule Motion 3 XL

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

Verdict is reader-supported. As an Amazon Associate we earn from qualifying purchases. Some links on this page are affiliate links — if you click through and buy, we may earn a small commission at no extra cost to you. Our ratings are sourced from independent publications, not sponsors.

The short answer

INNO Wedge 660 and Thule Motion 3 XL score essentially the same (4.4 vs 4.4). Pick the one whose trade-offs match your priorities — the strengths and watch-outs below are where they actually differ.

Ranked #1 in Best Roof Cargo Boxes

INNO Wedge 660

4.4

3 sources$799.99as of Oct 11

At 11 inches tall, the INNO Wedge 660 is the low-profile specialist: the quietest, most aerodynamic and best-looking box here, and a natural fit for skis, poles and flat gear. Volume is the sacrifice, since the shallow 300-liter interior handles bulky items poorly. Skiers and minimalists who want a sleek box that barely changes their roofline have no better option.

Strengths

— Memory Mount hardware lets you remove the box without undoing the crossbar mounts
— Dual-side opening, integrated tie-downs, and a key-removable lock system
— Slim 33-inch width leaves room to share the roof with a bike rack or kayak

Watch-outs

— Just 11 cu ft (about 300 L) and a shallow 9-inch interior limit bulky loads
— Poor choice for camping totes, strollers, or large duffels
— Hefty shipping fee when ordered direct from INNO

$799.99 · Check Price on Amazon Full review →

Ranked #2 in Best Roof Cargo Boxes

Thule Motion 3 XL

4.4

2 sources$1,099.95as of Jun 7

The Motion 3 XL is the do-everything premium box: 18 cubic feet, a torque-limited PowerClick mount that confirms a secure install, and the slickest one-hand operation in the category. It is expensive and it is long. Reviewers across the board still rank it at or near the top for build quality and usability.

Strengths

— 18 cu ft (about 500 L) swallows gear for ski trips and camping without being overly tall
— PowerClick mount has a torque indicator that clicks audibly when securely attached
— Better Trail found the wide single-hand handle and DualSide opening make loading from either side easy

Watch-outs

— List price near $1,150 is among the highest in the category
— Premium price buys polish more than raw volume the SkyBox NX XL matches for less

$1,099.95 · Check Price on Amazon Full review →

How they stack up

INNO Wedge 660

The low-profile alternative to the tall, high-volume boxes here. It carries far less than the 18 cu ft Thule Motion 3 XL, Yakima SkyBox NX XL, and Thule Force 3 XL and even less than the budget Yakima RocketBox Pro 14, but its 11-inch height makes it quieter and more aerodynamic than all of them, the pick when sleekness and clearance matter more than maximum space.

Thule Motion 3 XL

The premium benchmark, edging out the Yakima SkyBox NX XL on build quality and mount refinement though the SkyBox matches its 18 cu ft for less money. It is pricier and slightly larger than the Thule Force 3 XL, far roomier than the budget Yakima RocketBox Pro 14, and much taller than the low-profile INNO Wedge 660.

Specs side-by-side

Spec	INNO Wedge 660	Thule Motion 3 XL
Capacity	11 cu ft (~300 L)	18 cu ft (~500 L)
External Dimensions	80 x 33 x 11 in	84.7 x 35 x 17 in
Internal Dimensions	72 x 25.6 x 9.2 in	80 x 29 x 15 in
Weight	42 lb	51 lb
Mount Type	Memory Mount (universal crossbar)	PowerClick quick-mount
Opening	DualSide	DualSide
Profile	Low (11 in tall)	—
Locks	Key-removable lock system	—
Material	Plastic	Plastic
Max Load	—	165 lb
Ski Capacity	—	5-7 pairs

← See the full ranking of best roof cargo boxes