2026 Specialized Tarmac SL8 Pro SRAM vs 2025 Trek Émonda ALR
The 47 is the Trek Émonda ALR size closest to your 44 Specialized Tarmac SL8 Pro SRAM. 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 Émonda ALR
Compared with the Specialized Tarmac SL8 Pro SRAM in 44, the Trek Émonda ALR in 47 places the top of the head tube 6 mm higher and 7 mm further forward, relative to the bottom bracket.
- Frame stack
- +6 mm
- Higher front end
- Frame reach
- +7 mm
- Longer frame reach
- Wheelbase
- +2 mm
- About the same
- Head angle
- n/a
- One of the bikes has no number for this
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
We can't draw these frames yet. The Specialized Tarmac SL8 Pro SRAM numbers we have for size 44 are missing the head angle, seat angle and chainstay length. The numbers below still compare.
Geometry side by side
| Measurement | Specialized Tarmac SL8 Pro SRAM 44 | Trek Émonda ALR 47 | Difference |
|---|---|---|---|
| Reach | 366 | 373 | +7 mm |
| Stack | 501 | 507 | +6 mm |
| Effective top tube | 496 | 512 | +16 mm |
| Wheelbase | 970 | 972 | +2 mm |
| BB height | 266 | not listed | |
| Seat tube length | 433 | 424 | −9 mm |
| Head tube length | 99 | 100 | +1 mm |
| Head tube angle | not listed | 72.1° | |
| Chainstay length | not listed | 410 | |
| BB drop | not listed | 72 | |
| Standover | not listed | 692 |
Differences are the Trek Émonda ALR minus the Specialized Tarmac SL8 Pro SRAM. Full charts: 2026 Specialized Tarmac SL8 Pro SRAM, 2025 Trek Émonda ALR.
Where each sits in its class
Specialized Tarmac SL8 Pro SRAMTrek Émonda ALR
Each bike is ranked against the other road 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 Tarmac SL8 Pro SRAMPro SRAM Force AXS | Trek Émonda ALRALR 5 |
|---|---|---|
| Frame | Specialized Tarmac SL8 | not listed |
| Fork | Specialized FACT 10r | Trek Émonda ALR |
| Shifter | SRAM AXS E1 HRD Force | not listed |
| Derailleur | SRAM AXS E1 Force, SRAM Force AXS | not listed |
| Cassette | SRAM XG-1270 Force | not listed |
| Chain | SRAM E1 Force | not listed |
| Crankset | SRAM E1 Force | not listed |
| Chainring | SRAM Force E1 | not listed |
| Bottom bracket | SRAM DUB | not listed |
| Wheelset | Roval Rapide CL III | Bontrager Paradigm SL |
| Tire | Specialized Turbo Race, Specialized Turbo TLR Race | Bontrager R1 Hard-Case Lite |
| Brake | SRAM AXS E1 Force, SRAM Force E1 | not listed |
| Rotor | SRAM AXS E1, SRAM 160mm rear | not listed |
| Handlebar | Roval Rapide Cockpit | not listed |
| Stem | Roval Rapide Cockpit | not listed |
| Grips | Supacaz Super Sticky Kush | not listed |
| Bar tape | Supacaz Super Sticky Kush | not listed |
| Seatpost | Specialized Tarmac SL8 Carbon | not listed |
| Saddle | Specialized Power Pro Mirror | not listed |
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