2017 Specialized Crux Expert vs 2019 Trek Boone Disc
The 58 is the Trek Boone Disc size closest to your 61 Specialized Crux Expert. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Trek Boone Disc
Compared with the Specialized Crux Expert in 61, the Trek Boone Disc in 58 places the top of the head tube 21 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 4 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −21 mm
- Lower front end
- Frame reach
- −2 mm
- About the same reach
- Wheelbase
- −4 mm
- Shorter: quicker to change direction
- Head angle
- −0.7°
- Slacker: calmer steering
- Chainstays
- ±0 mm
- About the same
The two frames
Only the Specialized Crux Expert is drawn. The Trek Boone Disc numbers we have for size 58 are missing the seat angle.
Geometry side by side
| Measurement | Specialized Crux Expert 61 | Trek Boone Disc 58 | Difference |
|---|---|---|---|
| Reach | 393mm | 391 | −2 mm |
| Stack | 618mm | 597 | −21 mm |
| Head tube angle | 73° | 72.3° | −0.7° |
| Seat tube angle | 72.5° | not listed | |
| Effective top tube | 588mm | 570 | −18 mm |
| Chainstay length | 425mm | 425 | ±0 mm |
| Wheelbase | 1032mm | 1028 | −4 mm |
| BB drop | 67mm | 65 | −2 mm |
| BB height | 283mm | not listed | |
| Standover | 862mm | 816 | −46 mm |
| Seat tube length | 600mm | 553 | −47 mm |
| Fork length | 400mm | not listed | |
| Head tube length | 190mm | 176 | −14 mm |
Differences are the Trek Boone Disc minus the Specialized Crux Expert. Full charts: 2017 Specialized Crux Expert, 2019 Trek Boone Disc.
Where each sits in its class
Specialized Crux ExpertTrek Boone Disc
Each bike is ranked against the other gravel bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Specialized Crux ExpertExpert X1 | Trek Boone Disc5 Disc |
|---|---|---|
| Fork | Specialized CruX | Trek IsoSpeed Cross |
| Shifter | SRAM Force | SRAM Rival 1 |
| Derailleur | SRAM Force 1 | SRAM Rival 1 |
| Cassette | SRAM PG-1170 | SRAM PG 1130 |
| Chain | SRAM PC-1170 | SRAM PC-1130 |
| Crankset | SRAM Force 1 | SRAM Rival 1 |
| Chainring | SRAM X-Sync | not listed |
| Wheelset | DT Swiss R460 | not listed |
| Tire | Specialized Terra Pro | Bontrager CX3 Team Issue |
| Brake | SRAM Force | SRAM Rival |
| Seatpost | Specialized CG-R | Bontrager Tuned |
| Saddle | Specialized Phenom Expert | Bontrager Montrose |
| Frame | not listed | Trek OCLV |
| Bottom bracket | not listed | Trek BB90 |
| Hub | not listed | Bontrager centerlock |
| Handlebar | not listed | Bontrager VR-C |
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