2015 Trek Émonda SLR vs 2016 Specialized Tarmac Pro Disc Race UDi2
The 54.0 is the Specialized Tarmac Pro Disc Race UDi2 size closest to your 56 Trek Émonda SLR. 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 Tarmac Pro Disc Race UDi2
Compared with the Trek Émonda SLR in 56, the Specialized Tarmac Pro Disc Race UDi2 in 54.0 places the top of the head tube 6 mm lower and 8 mm further back, relative to the bottom bracket. Its wheelbase is 6 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −6 mm
- Lower front end
- Frame reach
- −8 mm
- Shorter frame reach
- Wheelbase
- −6 mm
- Shorter: quicker to change direction
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- −5 mm
- Shorter: livelier
The two frames
We can't draw these frames yet. The Trek Émonda SLR numbers we have for size 56 are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Émonda SLR 56 | Specialized Tarmac Pro Disc Race UDi2 54.0 | Difference |
|---|---|---|---|
| Reach | 395 | 387 | −8 mm |
| Stack | 549 | 543 | −6 mm |
| Head tube angle | 73.5° | 73 | −0.5° |
| Effective top tube | 560 | 548 | −12 mm |
| Chainstay length | 410 | 405 | −5 mm |
| Wheelbase | 983 | 977 | −6 mm |
| BB drop | 70 | 69 | −1 mm |
| Standover | 758 | 775 | +17 mm |
| Seat tube length | 525 | 510 | −15 mm |
| Head tube length | 140 | 140 | ±0 mm |
| Seat tube angle | not listed | 73.5 | |
| BB height | not listed | 272.5 | |
| Fork length | not listed | 368 |
Differences are the Specialized Tarmac Pro Disc Race UDi2 minus the Trek Émonda SLR. Full charts: 2015 Trek Émonda SLR, 2016 Specialized Tarmac Pro Disc Race UDi2.
Where each sits in its class
Trek Émonda SLRSpecialized Tarmac Pro Disc Race UDi2
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 | Trek Émonda SLRSLR 10 | Specialized Tarmac Pro Disc Race UDi2Pro Disc Race UDi2 |
|---|---|---|
| Frame | Trek Ultralight 700 | not listed |
| Fork | Trek Émonda | Specialized FACT carbon |
| Shifter | SRAM RED 22 | Shimano 785 Di2 |
| Derailleur | SRAM RED 22 | Shimano Ultegra Di2 |
| Cassette | SRAM X-Glide 1190 | Shimano Ultegra |
| Chain | SRAM RED22 | Shimano Ultegra |
| Crankset | SRAM Red | Specialized Pro |
| Bottom bracket | Trek BB90 | not listed |
| Wheelset | Trek Tune MIG45 | Roval CL 40 |
| Tire | Vittoria Crono CS | Specialized S-Works Turbo |
| Hub | Trek Tune MIG45, Trek Tune MAG150 | not listed |
| Rim | Trek Tune Skyline | not listed |
| Brake | Bontrager Stop | Shimano BR-785 |
| Handlebar | Bontrager XXX | Specialized Expert |
| Stem | Bontrager XXX | Specialized Pro SL |
| Headset | Cane Creek AER | not listed |
| Seatpost | Bontrager SLR | S Works FACT carbon |
| Saddle | Trek Tune Komm-Vor Plus | Specialized Toupe Expert |
| Bar tape | not listed | Specialized Roubaix |
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