Trek Boone
CX racers. If you want gravel capability, look at Checkpoint or Checkmate instead.
A UCI cyclocross race bike with IsoSpeed on some generations. Tight, muddy, and built to be shouldered — not a Checkpoint with CX tires.
CX racers. If you want gravel capability, look at Checkpoint or Checkmate instead.
A UCI cyclocross race bike with IsoSpeed on some generations. Tight, muddy, and built to be shouldered — not a Checkpoint with CX tires.
Adventure gravel riders.
BMC's original gravel/adventure bike: stable, mounts, calmer than Kaius.
CX and gravel racers who size like a road-race bike. If you want Future Shock and mounts, Diverge is the sibling.
The light gravel/CX race bike: lower and snappier than Diverge, with less adventure hardware. It feels like a Tarmac that grew tire clearance.
| Measurement | VitusSubstance 2026 | ![]() TrekBoone 2027 | ![]() BMCURS 2022 | ![]() SpecializedCrux 2022 |
|---|---|---|---|---|
| Stackmm | 582 | 580−2 | 600+18 | 578−4 |
| Reachmm | 388 | 387−1 | 400+12 | 397+9 |
| Head tube angle° | 71.5 | 72.0+0.5 | 71.0−0.5 | 72.0+0.5 |
| Seat tube angle° | 73.5 | 73.6+0.1 | 73.5 | 73.5 |
| Chainstaymm | 432 | 425−7 | 435+3 | 425−7 |
| Wheelbasemm | 1046 | 1020−26 | 1068+22 | 1036−10 |
| BB dropmm | 74 | 66−8 | 76+2 | 70−4 |
| BB heightmm | — | — | — | — |
| Standovermm | — | — | — | — |
| Part | Substance M | Boone 56 | URS L | Crux 56 |
|---|---|---|---|---|
| Stem | 100 mm | 100 mm | 110 mm | 100 mm |
| Bar | 420 mm | 420 mm | 440 mm | 420 mm |
| Crank | 172.5 mm | 172.5 mm | 175 mm | 172.5 mm |
Based closely on BMC's Team Elite cross country hardtail, the carbon fibre URS introduced modern off-road geometry concepts with a longer front centre combined ...
All in all, the BMC URS succeeds in being a smooth, endurance-type gravel bike, able to handle mellow long-distance bike packing trips or hustle ...
Minimum weight and maximum tyre clearance – the new Specialized Crux is supposed to achieve this balancing act and thus become the ultimate gravel weapon.
First Ride Review: 2022 Specialized S-Works Crux gravel bike · Handling feels familiar · Lightning-fast when climbing · Tyre clearance · Ride quality · So what's it ...