2024 Specialized Diverge STR Expert vs 2026 Specialized Diverge 4 Pro
The 54 is the Specialized Diverge 4 Pro size closest to your 54 Specialized Diverge STR 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 Specialized Diverge 4 Pro
Compared with the Specialized Diverge STR Expert in 54, the Specialized Diverge 4 Pro in 54 places the top of the head tube at about the same height and 4 mm further forward, relative to the bottom bracket. Its wheelbase is 7 mm longer, which can contribute to stability at speed.
- Frame stack
- −1 mm
- About the same height
- Frame reach
- +4 mm
- Longer frame reach
- Wheelbase
- +7 mm
- Longer: steadier at speed
- Head angle
- −0.3°
- About the same head angle
- Chainstays
- +1 mm
- About the same
The two frames
Specialized Diverge STR Expert, 54Specialized Diverge 4 Pro, 54Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Diverge STR Expert 54 | Specialized Diverge 4 Pro 54 | Difference |
|---|---|---|---|
| Reach | 383 | 387mm | +4 mm |
| Stack | 593 | 592mm | −1 mm |
| Head tube angle | 71.25° | 71° | −0.3° |
| Seat tube angle | 74° | 74° | ±0.0° |
| Chainstay length | 429mm | 430mm | +1 mm |
| Wheelbase | 1034mm | 1041mm | +7 mm |
| BB drop | 85mm | 85mm | ±0 mm |
| BB height | 265mm | not listed | |
| Standover | 753mm | 754mm | +1 mm |
| Seat tube length | 470mm | 470mm | ±0 mm |
| Fork length | 390mm | 391mm | +1 mm |
| Head tube length | 115mm | 116mm | +1 mm |
| Effective top tube | not listed | 556mm |
Differences are the Specialized Diverge 4 Pro minus the Specialized Diverge STR Expert. Full charts: 2024 Specialized Diverge STR Expert, 2026 Specialized Diverge 4 Pro.
Where each sits in its class
Specialized Diverge STR ExpertSpecialized Diverge 4 Pro
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 STR ExpertSTR Expert | Specialized Diverge 4 ProPro |
|---|---|---|
| Frame | Specialized Diverge | Specialized Diverge FACT |
| Fork | Specialized Future Shock 3.2 | Specialized Future Shock 3.3 |
| Rear shock | Specialized Future Shock | not listed |
| Shifter | SRAM Rival | SRAM Force AXS E1 |
| Derailleur | SRAM GX Eagle AXS | SRAM Force AXS E1 XPLR |
| Cassette | SRAM NX Eagle | SRAM Force E1 XPLR |
| Chain | SRAM GX Eagle | SRAM Force XPLR |
| Crankset | SRAM RIVAL 1 WIDE | SRAM Force E1 XPLR |
| Chainring | SRAM Rival E1 | not listed |
| Bottom bracket | SRAM DUB | SRAM DUB |
| Wheelset | Roval Terra C | Roval Terra CL |
| Tire | Specialized Tracer Pro | Specialized Tracer TLR All Terrain Gravel |
| Hub | DT Swiss 370 | not listed |
| Rim | Roval Terra C | not listed |
| Brake | SRAM Rival eTap AXS | SRAM Force E1 |
| Rotor | SRAM Paceline | not listed |
| Handlebar | Specialized Hover | Roval Terra |
| Stem | Specialized Future Stem | not listed |
| Bar tape | Supacaz Super Sticky Kush | not listed |
| Seatpost | Specialized Carbon Seat Post | Roval Terra |
| Saddle | Specialized Power Expert | Specialized Power Pro Mirror |
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