With Thule cross bars I've had no problems with wind loads on two whitewater
kayaks at speeds up to 140kph on my Focus wagon. Even on my old Toyota
Corolla coupe using Yakima racks (no factory racks) with a very short
spread, I had no problems transporting two 18' marathon racing canoes at
similar speeds. Don't underestimate wind loads in a crosswind, no matter
how "slippery" your hulls are; those are long boats you have. I even had
three Royalex whitewater boats (major weight) artfully piled on top of my
poor old Fiesta, using el-cheapo racks and yellow polyester rope. I was
young and stupid. Not that I would recommend it, but it worked. You'll be
fine with proper kayak cradles (to be nice to the hulls, not because of the
car) and good quality cam-lock straps.
I have all gear associated with my thule racks to fit my VW (cradles,
cam locking straps bow and stern tie downs etc.) and likewsie I have
carried far heavier weights and bulky items in the past on that rack
as it really becomes a part of the car when proeprly attached. I
hadn't thought about the cross windloading - thanks for reminding me.
Does Thule make cross bars to fir the Focus factory rack?
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