Trek Checkpoint ALR
Gravel Adventure · size M
Relaxed
Front end and reach about the same.
$1,499 to $2,199
GRAVEL ADVENTURE / 2026
Specialized Diverge 4 Alloy
An adventure gravel bike built for long rides, rough routes and carrying gear. Riding position: Relaxed in the smallest size to Balanced in the largest.
- Type
- Gravel Adventure
- Price, complete bikes
- $2,099 to $2,699
- Sizes
- 49 to 61 (6)
- Position, size 54
- Relaxed
- Tire clearance
- -
How the maker describes it
In Specialized’s words: “Gravel Adventure.”
GnR lists it as Gravel Adventure: an adventure gravel bike built for long rides, rough routes and carrying gear.
Source: Specialized, read October 20, 2026.
Published frame dimensions
Frame measurements for each size, in millimeters; head angles in degrees. Stack and reach describe the frame only. Stem, spacers and handlebars change where your hands end up.
| Size | Stack | Reach | Wheelbase | Head angle | Standover | Position |
|---|---|---|---|---|---|---|
| 49 | 564 | 365 | 1024 | 70° | 706 | Relaxed |
| 52 | 579 | 374 | 1034 | 70.5° | 730 | Relaxed |
| 54 | 593 | 387 | 1047 | 71° | 757 | Relaxed |
| 56 | 611 | 400 | 1066 | 71° | 781 | Balanced |
| 58 | 635 | 412 | 1087 | 71° | 808 | Balanced |
| 61 | 660 | 425 | 1108 | 71° | 835 | Balanced |
Aggressive more stretched out for its height · Balanced in between · Relaxed more upright for its height
From Specialized’s geometry chart, checked October 20, 2026. Visit Specialized ↗
Where this frame sits
Each colored dot is one Diverge 4 Alloy size; gray dots are other current gravel frames. Dots right of the green band are more stretched out for their height; dots left of it are more upright. 3 of 6 Diverge 4 Alloy sizes sit inside the band; 3 are more upright.
Price and builds
$2,099 to $2,699. Diverge 4 Sport Alloy (Shimano CUES) and Comp Alloy (SRAM Apex) builds.
Price rises with the parts: drivetrain, wheels and cockpit. Compare builds on Specialized’s site before buying.
Specialized US list prices, October 18, 2026. Prices and stock change often.
Comparable frames from other brands
The closest match to a size 54 Diverge 4 Alloy from other brands, among current gravel frames. Same-type frames are listed first.
Scott Speedster Gravel
Gravel All-rounder · size L/56
Relaxed
Front end and reach about the same.
$2,299
Giant Revolt Advanced Pro
Gravel All-rounder · size M
Relaxed
Front end a little lower, reach about the same.
$5,600 to $7,000
Maker US list prices for complete bikes on the date checked.
Frame details
- Tire clearance
- -
- Mounts
- Frame mounting points and rear fender bridge per the 2026 user manual. Load limits apply.
- Geometry chart
- 2026 E5 alloy with Future Shock · user manual chart
Exact six-size chart from the 2026 Diverge E5 user manual, page 3 (owner-supplied). Stack and reach include Future Shock, measured to the bottom of the stem with a 0 mm headset cover. Separate from the carbon Diverge 4 and from the older seven-size Diverge 3 Alloy, which remains held for a standover discrepancy.
Find alternatives to this frame
Use this exact chart as your reference, select your size, then explore similar dimensions or a deliberate position change. Confirm the frame generation matches your bike before using it.
Match this bike ↗Does similar geometry mean the same fit?
Similar frame dimensions are a starting point. Saddle height and setback, seat-tube geometry, stem length and angle, headset spacers, handlebars and control position affect the completed bike. Review those details before buying.