2023 Specialized Diverge STR Expert vs 2025 Marin Gestalt Base
The 54 is the Marin Gestalt Base size closest to your 52 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 Marin Gestalt Base
Compared with the Specialized Diverge STR Expert in 52, the Marin Gestalt Base in 54 places the top of the head tube 6 mm higher and 3 mm further forward, relative to the bottom bracket. Its wheelbase is 3 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +6 mm
- Higher front end
- Frame reach
- +3 mm
- Longer frame reach
- Wheelbase
- −3 mm
- Shorter: quicker to change direction
- Head angle
- +1.0°
- Steeper: sharper steering
- Chainstays
- +3 mm
- Longer: more planted
The two frames
Specialized Diverge STR Expert, 52Marin Gestalt Base, 54Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Diverge STR Expert 52 | Marin Gestalt Base 54 | Difference |
|---|---|---|---|
| Reach | 374 | 377 | +3 mm |
| Stack | 576 | 582 | +6 mm |
| Head tube angle | 70.5° | 71.5 | +1.0° |
| Seat tube angle | 74.25° | 73.5 | −0.8° |
| Chainstay length | 429mm | 432 | +3 mm |
| Wheelbase | 1027mm | 1024 | −3 mm |
| BB drop | 85mm | 78 | −7 mm |
| BB height | 265mm | not listed | |
| Standover | 730mm | 755 | +25 mm |
| Seat tube length | 430mm | 500 | +70 mm |
| Fork length | 390mm | not listed | |
| Head tube length | 100mm | not listed | |
| Effective top tube | not listed | 550 |
Differences are the Marin Gestalt Base minus the Specialized Diverge STR Expert. Full charts: 2023 Specialized Diverge STR Expert, 2025 Marin Gestalt Base.
Where each sits in its class
Specialized Diverge STR ExpertMarin Gestalt Base
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 | Marin Gestalt BaseBase |
|---|---|---|
| Frame | Specialized Diverge FACT | Marin Gestalt |
| Fork | Specialized Future Shock 2.0 | 6061 Aluminum, Straight-Blade, Post-Mount Disc |
| Shifter | SRAM Rival eTAP AXS | Shimano Claris |
| Derailleur | SRAM GX Eagle AXS | Shimano Claris |
| Cassette | SRAM NX Eagle | SunRace 8-Speed, 11-32T |
| Chain | SRAM GX Eagle | KMC Z8 |
| Crankset | SRAM Rival 1 | FSA Tempo |
| Chainring | SRAM Rival E1 | not listed |
| Bottom bracket | SRAM DUB | Sealed Bearing Square Taper |
| Wheelset | Roval Terra C | Marin Aluminum Double Wall, 21mm Inner, 22mm Tall |
| Tire | Specialized Tracer Pro 2BR | WTB Exposure Comp |
| Brake | SRAM Rival eTap AXS | Tektro MD-C400 |
| Rotor | SRAM Paceline | not listed |
| Handlebar | Specialized Hover | Marin Butted Alloy, Compact 16º Flared Drop |
| Stem | Specialized Future | not listed |
| Seatpost | S Works Carbon | Marin Alloy, 27.2mm |
| Saddle | Specialized Power Expert | Marin Beyond Road Concept Elite |
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