2015 Specialized Diverge Expert Carbon vs 2017 Trek Boone Disc
The 50 is the Trek Boone Disc size closest to your 49 Specialized Diverge Expert Carbon. 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 Expert Carbon in 49, the Trek Boone Disc in 50 places the top of the head tube 9 mm higher and 3 mm further back, relative to the bottom bracket. Its wheelbase is 12 mm longer, which can contribute to stability at speed.
- Frame stack
- +9 mm
- Higher front end
- Frame reach
- −3 mm
- Shorter frame reach
- Wheelbase
- +12 mm
- Longer: steadier at speed
- Head angle
- −0.3°
- About the same head angle
- Chainstays
- +13 mm
- Longer: more planted
The two frames
Only the Specialized Diverge Expert Carbon is drawn. The Trek Boone Disc numbers we have for size 50 are missing the seat angle.
Geometry side by side
| Measurement | Specialized Diverge Expert Carbon 49 | Trek Boone Disc 50 | Difference |
|---|---|---|---|
| Reach | 378mm | 375 | −3 mm |
| Stack | 525mm | 534 | +9 mm |
| Head tube angle | 71.25° | 71.0° | −0.3° |
| Seat tube angle | 75.5° | not listed | |
| Effective top tube | 518mm | 518 | ±0 mm |
| Chainstay length | 412mm | 425 | +13 mm |
| Wheelbase | 989mm | 1001 | +12 mm |
| BB drop | 77mm | 70 | −7 mm |
| Standover | 714mm | 747 | +33 mm |
| Seat tube length | 418mm | 476 | +58 mm |
| Head tube length | 100mm | 110 | +10 mm |
Differences are the Trek Boone Disc minus the Specialized Diverge Expert Carbon. Full charts: 2015 Specialized Diverge Expert Carbon, 2017 Trek Boone Disc.
Where each sits in its class
Specialized Diverge Expert CarbonTrek 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 Expert CarbonExpert Carbon | Trek Boone Disc5 Disc |
|---|---|---|
| Shifter | Shimano 685 | Shimano RS685 |
| Derailleur | Shimano Ultegra | Shimano 105 |
| Cassette | Shimano Ultegra | Shimano 105 |
| Chain | KMC X-11 | Shimano 105 |
| Wheelset | Specialized AXIS 4.0 | not listed |
| Tire | Specialized Roubaix Pro | Bontrager CX3 Team Issue |
| Brake | Shimano BR-785 | Shimano RS685 |
| Seatpost | Specialized CG-R | Bontrager Tuned |
| Saddle | Specialized Phenom Expert | Bontrager Paradigm |
| Frame | not listed | Trek OCLV |
| Fork | not listed | Trek IsoSpeed Cross |
| Crankset | not listed | FSA Energy Cross |
| Bottom bracket | not listed | Trek BB90 |
| Handlebar | not listed | Bontrager VR-C |
Know what is on every bike.
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