The Diverge 4 Sport Alloy sits one step below the Comp in Specialized's gravel lineup, but the fundamentals are identical. Same E5 Premium Alloy frame, same Future Shock 3.1 suspension, same SWAT 3.0 internal storage.
What changes is the drivetrain and a modest weight difference, which for most riders translates to a more accessible Specialized Diverge 4 price without giving up what makes the bike worth buying in the first place.
The frame and suspension
Future Shock 3.1 does the same job here as on the Comp. It's a 20mm travel unit sitting in the headtube that smooths out road buzz and rough gravel in a way that's hard to appreciate until you've ridden a long day without it. On UK bridleways and potholed country lanes, it makes a real difference to how you feel at the end of a four-hour ride.
The Specialized E5 Alloy frame is stiff, well-made, and has enough tyre clearance to handle the kind of mixed terrain most UK gravel routes involve. The Burnt Gold colourway looks considerably better in person than it does on a screen, for what that's worth.
Drivetrain
The Sport runs the new Shimano CUES 1x11 groupset rather than the SRAM setup on the Comp. CUES is Shimano's newer unified ecosystem, designed for durability and consistent performance across a wide range of riding conditions. It shifts cleanly, parts are widely available, and servicing it won't cause you any headaches.
1x11 gives you a slightly narrower gear range than the 1x12 on the Comp, which is worth knowing if you're planning heavily loaded bikepacking routes with steep climbs. For most gravel sportives, mixed-terrain day rides, or regular UK gravel riding, the range is more than adequate.
Specs at a glance
- Frame: E5 Premium Alloy
- Suspension: Future Shock 3.1 (20mm travel)
- Drivetrain: Shimano CUES 1x11
- Wheels: Axis
- Storage: SWAT 3.0 internal frame storage
- Weight: 10.74 kg
Internal storage
SWAT 3.0 puts usable space inside the downtube, enough for the basics: a spare tube, tyre lever, multi-tool. It's a genuinely useful feature on a gravel racing bike, and the fact it's included on an aluminium gravel bike with suspension at this price point is worth noting.
Who this suits
The Diverge 4 Sport is a good match for riders who want a capable, well-specced gravel bike for adventure and racing use, and would rather spend the saving from the Comp on kit, entry fees, or just keeping some money in their pocket.
As a Specialized gravel bicycle, the Sport handles the same range of terrain as the Comp. The difference shows up at the edges, on very long loaded routes or when you're pushing hard in a gravel race and start to notice drivetrain precision more closely. For most riders, most of the time, those edges don't come up.
If you're considering the Specialized Diverge 4 Sport Alloy as your first serious gravel bike, or as an upgrade from a flat-bar or hybrid setup, it's a strong place to land. Available for sale in the UK at Edinburgh Bicycle Co-operative, and worth a test ride to dial in the fit before committing to distances.