Opus Horizon AL 105/GRX


The Horizon AL 105/GRX takes our proven Horizon geometry to new extremes. A dropped chainstay gives you clearance for 45mm tires and the ability to mount 650b wheels with up to 50mm tires. All that, plus a threaded bottom bracket, take you places you never thought possible. Meanwhile the rugged alloy frame shoulders heavier loads on multiple mounting points, including on new top tube mounts. On road or no road, travelling light or fully loaded, one bike does it all. The Horizon AL 105/GRX.

  • Proven Horizon Progressive Geometry to master all surfaces
  • Full carbon fork with triple mounts for bottle or bags
  • 11 Speed Shimano with GRX rear derailleur
  • Big clearance for 700 x 45 tires, can be used with 650 x 50 wheels and tires
  • Rear rack and fender mounts, 5 bottle and top tube mounts

Curbside / In Store Pickup Only

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Opus Horizon AL 105/GRX

Size Guide shows suggested sizes. For the most accurate sizing please visit our store for a bike fit and a test ride.

Riders recommended height ± 5cm or ± 2" for their respective category.

Size Riders's Height (cm) Riders's Height (feet)
S 168 5'6"
M 175 5'9"
L 183 6'0"
SKU: N/A Categories: , Tag:
Frame Meta 30 aluminum
Fork Full carbon tapered 1-1/2 to 1-1/8 in
Weight (lb) 22.8
Sizes S-M-L
Color(s) Army Green
Shifters Shimano 105 R7000 2×11
Front Derailleur Shimano 105 R7000
Rear Derailleur Shimano GRX-810
Brakes Promax Decode R Flat Mount twin piston disc
Brake Levers Shimano 105 R7000
Crank FSA Omega Adventure
Chainrings 48-32
Bottom Bracket FSA sealed BSC threaded
Cassette Shimano 11-34
Chain Shimano HG11
Headset FSA Orbit integrated sealed
Handlebar X-Race Aero 16° flare
Stem Promax
Grips/Tape Velo VexGel diamond
Saddle Selle Italia X3 XP Keramid
Seatpost Promax alloy 27.2 x 300
Wheels/Rims Weinmann U28TL
Hubs Alex Bear Pawls through axle 12 mm fr/rr
Tires Kenda Flintridge Pro 700 x 35 CSK
Pedals N/A
Other Top tube bag mounts
Other Front and rear rack and fender mounts