2015 Specialized Crux E5 vs 2017 Trek Boone Disc
The 50 is the Trek Boone Disc size closest to your 46 Specialized Crux E5. 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 E5 in 46, the Trek Boone Disc in 50 places the top of the head tube 12 mm higher and 9 mm further forward, relative to the bottom bracket. Its wheelbase is 7 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +12 mm
- Higher front end
- Frame reach
- +9 mm
- Longer frame reach
- Wheelbase
- −7 mm
- Shorter: quicker to change direction
- Head angle
- +1.5°
- Steeper: sharper steering
- Chainstays
- ±0 mm
- About the same
The two frames
Only the Specialized Crux E5 is drawn. The Trek Boone Disc numbers we have for size 50 are missing the seat angle.
Geometry side by side
| Measurement | Specialized Crux E5 46 | Trek Boone Disc 50 | Difference |
|---|---|---|---|
| Reach | 366mm | 375 | +9 mm |
| Stack | 522mm | 534 | +12 mm |
| Head tube angle | 69.5° | 71.0° | +1.5° |
| Seat tube angle | 75.5° | not listed | |
| Effective top tube | 510mm | 518 | +8 mm |
| Chainstay length | 425mm | 425 | ±0 mm |
| Wheelbase | 1008mm | 1001 | −7 mm |
| BB drop | 71mm | 70 | −1 mm |
| Standover | 764mm | 747 | −17 mm |
| Seat tube length | 460mm | 476 | +16 mm |
| Head tube length | 100mm | 110 | +10 mm |
Differences are the Trek Boone Disc minus the Specialized Crux E5. Full charts: 2015 Specialized Crux E5, 2017 Trek Boone Disc.
Where each sits in its class
Specialized Crux E5Trek 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 E5E5 | Trek Boone Disc5 Disc |
|---|---|---|
| Shifter | Shimano Sora | Shimano RS685 |
| Derailleur | Shimano Sora | Shimano 105 |
| Cassette | Shimano HG50 | Shimano 105 |
| Chain | KMC X9 | Shimano 105 |
| Crankset | FSA Gossamer | FSA Energy Cross |
| Wheelset | Specialized AXIS Classic | not listed |
| Tire | Specialized Tracer Sport | Bontrager CX3 Team Issue |
| Brake | Tektro Spyre | Shimano RS685 |
| Saddle | Specialized Toupé Sport | Bontrager Paradigm |
| Frame | not listed | Trek OCLV |
| Fork | not listed | Trek IsoSpeed Cross |
| Bottom bracket | not listed | Trek BB90 |
| Handlebar | not listed | Bontrager VR-C |
| Seatpost | not listed | Bontrager Tuned |
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