Shimano GRX RD-RX815 Di2 Rear Derailleur

Shimano GRX RD-RX815 Di2 Rear Derailleur
Shimano GRX RD-RX815 Di2 Rear Derailleur
$286.99
Price subject to change | Ships & sold by Backcountry
Free 2-Day Shipping on Orders Over $50*
Easy, world-class return policy*
Similar Products
Product Description
GRX RD-RX815 Di2 Rear Derailleur by Shimano
Gravel riding has been taken to new levels in the past years. What used to be a niche cycling event for the rebels and rule breakers has taken to the masses, with events that are packed with faces from all walks of cycling life, from the avid endurance athlete to the roadie, and everything in between. And with such growth, it doesn't surprise us at all that Shimano made its debut into the gravel scene recently with its launch of a gravel-specific groupset. Now, bringing things even further into the future, Shimano offers its GRX group with a little bit of Di2 magic dusted on top, and the GRX RD-RX815 Di2 Rear Derailleur is ready to hold things down in the rear end. The GRX Di2 rear derailleur takes the shape and tech that we love from the standard GRX rear derailleur, like the clutch mechanism that secures your chain on rough roads, and ads in electronics for crisper shifting than before. Following in the footsteps of the revamped Dura-Ace and Ultegra groups, this GRX derailleur gets its Shadow cage treatment placing it closer to the frame and under the cassette keeping it out of harm's way and less likely to take the brunt of a driveside crash. This also allows the derailleur to move in a much more linear path allowing for shorter throws with less effort. T RX815 model comes in one cage length, short, which accommodates an 11-34t cassette allowing for a wide range gear ratio when paired with a double without the usual huge jumps between the cogs like on a 1x setup. Sticking to what the brand's customers know well, Shimano continues to use the Dura-Ace, Ultegra, and Tiagra designation with the GRX line, with this particular model falling under the Ultegra umbrella, which means it gets the usual materials and finishes that we expect from a groupset that's just one step from the top. Its weight, smoothness, and durability make it more than capable of racing against the competition on course, or the sun to your campsite for the night on a bikepacking trip.

Details
SKU: SHIU19F
Options, sizes, colors available on Backcountry
Manufactured by Shimano
Shimano GRX RD-RX815 Di2 Rear Derailleur ships and sold by Backcountry
Price subject to change
*Shipping and Returns: Some exclusions apply, see cart on Backcountry for details
US-Parks.com has partnered with Backcountry to offer the best outdoor gear for your outdoors adventure
$1299.99
Already proven in the pro peloton when paired with Shimano\'s flagship Dura-Ace drivetrain, the Pioneer Dura-Ace R9100...
Price subject to change | Available through Backcountry.com
$3499.99 30% off
DeVinci understands that no two mountains are the same, so whether you\'re navigating forested singletrack in the high...
Price subject to change | Available through Backcountry.com
$249.95
Treat your lower body with the Mountain Equipment Men\'s Lightline Down Pant when you need recover at basecamp or are...
Price subject to change | Available through Backcountry.com
$139.95
Flat pedals win medals they say, and if you\'re in the campof death before clipless, the Men\'s Riddance Mid Cycling...
Price subject to change | Available through Backcountry.com
Featured Park
Rising above a scene rich with extraordinary wildlife, pristine lakes, and alpine terrain, the Teton Range stands monument to the people who fought to protect it. These are mountains of the imagination. Mountains that led to the creation of Grand Teton National Park where you can explore over two hundred miles of trails, float the Snake River or enjoy the serenity of this remarkable place.
Featured Wildlife
The pika is a close relative of the rabbits and hares, with two upper incisors on each side of the jaw, one behind the other. Being rock-gray in color, pikas are seldom seen until their shrill, metallic call reveals their presence.