Opus Horizon 105/GRX 2025 Size:S and an oversized toe lever

and an oversized toe lever adds stability and durability

When connected to an external power source

Heat 3D and Heat Kit range only

Kit Includes: One pair of Helium-TRAIL snowshoes

Low-density core features lightweight wood core with air channels for a lively feel

Opus Horizon 105/GRX 2025 Size:S and an oversized toe leverYOU DECIDE WHERE IT TAKES YOU 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