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ShimanoGRX FD-RX810 Front Derailleur


Item # SHIU19B

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  • Black, Braze-On ($51.99)
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Item # SHIU19B

GRX FD-RX810 Front Derailleur

Gone are the days of deciding between road and mountain bike components to throw on your gravel rig — instead, Shimano's GRX groupset offers a whole slew of new components that are tuned specifically to those of us who prefer the any-road life. The all-new GRX FD-RX810 Front Derailleur is designed for gravel specific riding, and while it contains much of the same technology that you'll find in Shimano's Ultegra road front-derailleur, it's build a little bit differently to accommodate a chainline that's pushed outwards a few millimeters, which enables extra tire clearance, so you can roll atop a bit of pneumatic suspension for those miles of jarring gravel grinds.

The new GRX front derailleur sits 2.5-millimeters outboard from traditional road derailleurs, which means a big boost in clearance for your frame, tires, and debris. This also means that is placement is a bit different than with a standard crankset, which makes it solely compatible with GRX two-by cranks, offering the placement you need for precise shifts of up to 17-tooth range. The shift mechanism is light and ergonomic, and packs in toggle-link construction that enables heaps of different cable routing options, and also features an integrated cable tensioners to ease setup and quick fixes.

Like its Ultegra counterpart, the GRX front derailleur is constructed from chrome-plated steel, which is robust against mud, rocks, and bumps. In addition to the steel cage, Shimano employs stainless steel hardware and bolts, aluminum inner links, and graphene fiber-reinforced outer link. The braze-on bracket is forged and painted aluminum, keeping weight at a minimum, without sacrificing durability and shift feel.

  • A front derailleur for the two-by gravel connoisseur
  • Outboard placement improves clearance for tires, frames, mud
  • Light and ergonomic shift mechanism keeps shifts smooth, precise
  • Huge 17-tooth range offers massive gearing options for variable riding
  • Toggle-link construction enables huge variety of cable routing options
  • Integrated cable tensioner makes setup and quick fixes simple
  • Durable construction holds up to the rigors of gravel riding
  • Only compatible with Shimano GRX cranksets

Tech Specs
Gearing[top gear teeth] 46 - 50t, [capacity] 17t
CompatibilityShimano GRX 11-speed cranksets, Shimano 11-speed chains
Recommended Usegravel, road
Manufacturer Warranty2 years

Actual Weight

Black, Braze-On

Claimed Weight

Claimed weights are provided by the vendor.

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Actual weights are measured in-house by the Competitive Cyclist team.

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What do you think about this product?


>Rating: 5

Needed Upgrade

I've used it once or twice and have initial impressions

I set out to rebuild my wife's bike and this derailleur was highly recommended by a friend. Shifts are smooth and precise and the quality is what one would expect from Shimano. You can't go wrong.