2015 Specialized Diverge Sport A1 vs 2017 Trek Boone Disc
The 58 is the Trek Boone Disc size closest to your 56 Specialized Diverge Sport A1. 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 Diverge Sport A1 in 56, the Trek Boone Disc in 58 places the top of the head tube 7 mm higher and 4 mm further forward, relative to the bottom bracket. Its wheelbase is 18 mm longer, which can contribute to stability at speed.
- Frame stack
- +7 mm
- Higher front end
- Frame reach
- +4 mm
- Longer frame reach
- Wheelbase
- +18 mm
- Longer: steadier at speed
- Head angle
- −0.2°
- About the same head angle
- Chainstays
- +10 mm
- Longer: more planted
The two frames
Only the Specialized Diverge Sport A1 is drawn. The Trek Boone Disc numbers we have for size 58 are missing the seat angle.
Geometry side by side
| Measurement | Specialized Diverge Sport A1 56 | Trek Boone Disc 58 | Difference |
|---|---|---|---|
| Reach | 387mm | 391 | +4 mm |
| Stack | 590mm | 597 | +7 mm |
| Head tube angle | 72.5° | 72.3° | −0.2° |
| Seat tube angle | 73.25° | not listed | |
| Effective top tube | 565mm | 570 | +5 mm |
| Chainstay length | 415mm | 425 | +10 mm |
| Wheelbase | 1010mm | 1028 | +18 mm |
| BB drop | 71.5mm | 65 | −7 mm |
| Standover | 798mm | 816 | +18 mm |
| Seat tube length | 485mm | 553 | +68 mm |
| Head tube length | 159mm | 176 | +17 mm |
Differences are the Trek Boone Disc minus the Specialized Diverge Sport A1. Full charts: 2015 Specialized Diverge Sport A1, 2017 Trek Boone Disc.
Where each sits in its class
Specialized Diverge Sport A1Trek 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 Diverge Sport A1Sport A1 | Trek Boone Disc5 Disc |
|---|---|---|
| Shifter | Shimano Sora | Shimano RS685 |
| Derailleur | Shimano Sora | Shimano 105 |
| Chain | KMC X9 | Shimano 105 |
| Crankset | Shimano Sora | FSA Energy Cross |
| Wheelset | Specialized AXIS Classic | not listed |
| Tire | Specialized Espoir 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 |
| Cassette | not listed | Shimano 105 |
| Bottom bracket | not listed | Trek BB90 |
| Handlebar | not listed | Bontrager VR-C |
| Seatpost | not listed | Bontrager Tuned |
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