Thule Sonic M

Rooftop cargo carrier

Combines technology with style.


by PowerReviews

(based on 3 reviews)

Reviewed by 3 customers

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Thule Sonic Alpine 633


from Glacier Park, Montana

I have had my Sonic for about a month and carry mostly skis...lots of skis. I love the aerodynamic, sleek design and it has held up OK in high winds of up to 60 mph gusts. I live in a wind prone area with steady winds of 30-40 mph common and 70 mph gusts occasionally. My only issue is with the mounting system. At first I thought this is great. An internal mounting system not having to deal with snow and ice on the knobs, however... the inside knobs that tighten the clamps are very high profile and very large possibly limiting the type of cargo that can be accommodated. Also, after only 1 month of use I managed to pop off one of the internal knobs (perhaps unloading skis). Also, the contact area between the clamps and the roof rack bars is very skinny and I will be padding mine with some tough carpeting to try and get more friction between the metal clamps and the roof rack bars. Next time I would pay more attention to the mounting system.

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from Canada

Comments about Thule Sonic M:

Just drove through big rain. 4 -20 C Sleeping bags 4 pillows and some sweaters in this unit (634 B) all stayed bone dry, not a drop of water. Small Unit for smaller vehicle, but you can still pile in a lot of stuff.

(0 of 1 customers found this review helpful)


Thule Rocks


from Santa Fe, NM

Verified Buyer

Comments about Thule Sonic M:

Well thought out and designed! Quality materials.

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Volume 13
Dimensions 73 x 34.5 x 16 in
Load capacity 110 lb
Mounting system AcuTight
Box opening DualSide
Weight 40 lb
Locking system SecureLock
Locks included
One Key System compatible
Load capacity skis N/A
Load capacity snowboards 3-5
Max length of skis 155 cm
Ski carrier
Color Black Metallic Glossy
Fits AeroBlade
Fits Factory Racks Yes, see Thule Buyer's Guide for details
Fits SquareBar
Model number 634B

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