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Opus Horizon GRX-810

Opus Horizon GRX-810
Stealth Black
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The Horizon GRX810 handle any road surface — even when the road runs out. Its perfectly balanced Progressive Geometry, delivers supreme comfort and speed on road rides while supplying the stability and confidence you need on high-adventure rides over dirt and gravel. Equipped with the new dedicated gravel Shimano GRX groupo, hydraulic disc brakes and gravel-crushing extra-wide through axle wheels. Accommodating everything from light road slicks to mud-friendly wide knobbies (up to 42 mm), and featuring rack, bottle and fenders mounts, the Horizon is truly one bike that does it all.

- Versatile Progressive Geometry is at home on all surfaces
- Full carbon frame and fork
- Full Shimano GRX group
- Extra-wide 42 mm tire clearance
- Front and rear rack and fender mounts, 5 bottle mounts


Frame Gamma 30 Carbon
Fork Full carbon tapered 1-1/2 to 1-1/8 in
Headset FSA Orbit integrated sealed
Rims/Wheels Alex VXD4 Tubeless Ready Anti Bite
Hubs Alex through axle 12 mm Fr/Rr
Tires Kenda Booster Pro 700 x 40 GCT
Crankset Shimano RX-810-2
Chainrings 48-31
Bottom Bracket Shimano sealed 86.5 mm
Chain Shimano
Front Derailleur Shimano RX-810
Rear Derailleur Shimano RX-810
Cassette/Rear Cogs Shimano 11-34
Shifters Shimano ST-RX810 2 x 11
Handlebars X-Race Aero 16° flare
Tape/Grips Velo VexGel diamond
Stem Redshift Shockstop
Brake Levers Shimano RX-810
Brakes Shimano RX-810 Flat Mount hydraulic disc
Saddle Selle Italia X3 XP Keramid Ti
Seat Post Opus Gold carbon 27.2 x 300
Accessories & Extras Internal dropper post ready / Di2 compatible, Fr/Rr rack and fender mounts with hardware

* Subject to change without notice.

Part Numbers

Option UPC MPN
Stealth Black / X-Small 624316080152 OP-HORGRX810STB-XS
Stealth Black / Small 624316080169 OP-HORGRX810STB-S
Stealth Black / Medium 624316080176 OP-HORGRX810STB-M
Stealth Black / Large 624316080183 OP-HORGRX810STB-L
Stealth Black / X-Large 624316080190 OP-HORGRX810STB-XL