Features:

• Affordable upright bike mount designed to carry single bike
• Holds bikes with 1- to 3-inch diameter downtubes
• Fits both round and square crossbars, including factory crossbars
• Includes ratcheting wheel straps; handles disc brakes and thru axles
• Ideal for bicyclists on a budget; limited lifetime warranty

Editor Reviews:

Product Description:
THIS MOUNT�S TRIANGULATED ARM GRIPS YOUR DOWNTUBE FIRMLY IN ITS TALON. BUT IT DOESN�T SCRATCH YOUR PAINT. BECAUSE THE PADDED LOCKING JAWS TREAT YOUR BIKE FAR MORE GENTLY THAN ITS KIND-OF-SCARY NAME IMPLIES. Fits 1� to 3� diameter downtubes (most shapes). Secures wheels with racheting wheelstraps. Fits round and square crossbars equally well. Compatible with factory crossbars when you add MightyMounts (SOLD SEPARATELY).

Amazon.com Product Description:
Need a sweet upright bike mount that doesn't deplete your budget? Turn to the Yakima Raptor bicycle carrier, which holds a single bike on the roof of your car. Designed to hold bikes with 1- to 3-inch diameter downtubes, the Raptor fits both round and square crossbars, including factory crossbars when paired with Yakima Mighty Mounts or Universal Mighty Mounts (sold separately). Once you've secured the downtube, it's easy to keep the bike stable for the entire trip, with ratcheting wheel straps that keep the tires in place. And thanks to the versatile design, the Raptor has no problem handling disc brakes or thru axles. The end result? Plenty of leftover cash for life's other necessities, such as inner tubes, cheap brews, and ramen noodles. All Yakima bike mounts carry a limited lifetime warranty.

Rating : - Works as promised
Product is sturdy and of high quality. Assembling it is relatively straightforward. I used it and was satisfied with ease of mounting and dismounting of bikes.
The only caveat is with regards to the clips that connect it to the root rack. They fit square or round profile racks but not the elongated type. For these you would need to order the "mighty clips" (check it out before you do)