Quiver

2015 Trek Émonda SLR vs 2016 Specialized Tarmac Pro Disc Race UDi2

The Specialized Tarmac Pro Disc Race UDi2 size closest to your 56 is the 54.0. Compare the 54.0 instead

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 49.0 places the top of the head tube 44 mm lower and 9 mm further back, relative to the bottom bracket. Its wheelbase is 13 mm shorter, which can contribute to quicker direction changes.

Frame stack
−44 mm
Lower front end
Frame reach
−9 mm
Shorter frame reach
Wheelbase
−13 mm
Shorter: quicker to change direction
Head angle
−1.3°
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

MeasurementTrek Émonda SLR 56Specialized Tarmac Pro Disc Race UDi2 49.0Difference
Reach395386−9 mm
Stack549505−44 mm
Head tube angle73.5°72.25−1.3°
Effective top tube560517−43 mm
Chainstay length410405−5 mm
Wheelbase983970−13 mm
BB drop7072+2 mm
Standover758730−28 mm
Seat tube length525460−65 mm
Head tube length140100−40 mm
Seat tube anglenot listed75.5
BB heightnot listed270
Fork lengthnot listed368

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

AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted

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.

PartTrek Émonda SLRSLR 10Specialized Tarmac Pro Disc Race UDi2Pro Disc Race UDi2
FrameTrek Ultralight 700not listed
ForkTrek ÉmondaSpecialized FACT carbon
ShifterSRAM RED 22Shimano 785 Di2
DerailleurSRAM RED 22Shimano Ultegra Di2
CassetteSRAM X-Glide 1190Shimano Ultegra
ChainSRAM RED22Shimano Ultegra
CranksetSRAM RedSpecialized Pro
Bottom bracketTrek BB90not listed
WheelsetTrek Tune MIG45Roval CL 40
TireVittoria Crono CSSpecialized S-Works Turbo
HubTrek Tune MIG45, Trek Tune MAG150not listed
RimTrek Tune Skylinenot listed
BrakeBontrager StopShimano BR-785
HandlebarBontrager XXXSpecialized Expert
StemBontrager XXXSpecialized Pro SL
HeadsetCane Creek AERnot listed
SeatpostBontrager SLRS Works FACT carbon
SaddleTrek Tune Komm-Vor PlusSpecialized Toupe Expert
Bar tapenot listedSpecialized Roubaix

Know what is on every bike.

Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.

Explore the app
A Transition Relay build sheet: frame, fork, shock and drivetrainThe Relay’s ride photo galleryThe Relay’s ride spectrum and 2D frame geometryThe garage: five bikes and 99 recorded partsA Specialized Tarmac SL8 road build sheet