Quiver

2024 Trek Domane SL Gen 4 Frameset vs 2026 Giant Contend AR

The XS is the Giant Contend AR size closest to your 50 Trek Domane SL Gen 4 Frameset. 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 Giant Contend AR

Compared with the Trek Domane SL Gen 4 Frameset in 50, the Giant Contend AR in XS places the top of the head tube 13 mm higher and 7 mm further forward, relative to the bottom bracket. Its wheelbase is 7 mm longer, which can contribute to stability at speed.

Frame stack
+13 mm
Higher front end
Frame reach
+7 mm
Longer frame reach
Wheelbase
+7 mm
Longer: steadier at speed
Head angle
+0.7°
Steeper: sharper steering
Chainstays
+2 mm
About the same

The two frames

We can't draw these frames yet. The Trek Domane SL Gen 4 Frameset numbers we have for size 50 are missing the seat angle. The numbers below still compare.

Geometry side by side

MeasurementTrek Domane SL Gen 4 Frameset 50Giant Contend AR XSDifference
Reach368375+7 mm
Stack546559+13 mm
Head tube angle71.1°71.8+0.7°
Effective top tube519535+16 mm
Chainstay length420422+2 mm
Wheelbase9961003+7 mm
BB drop8080±0 mm
Standover716759+43 mm
Seat tube length450465+15 mm
Head tube length130135+5 mm
Seat tube anglenot listed74.0

Differences are the Giant Contend AR minus the Trek Domane SL Gen 4 Frameset. Full charts: 2024 Trek Domane SL Gen 4 Frameset, 2026 Giant Contend AR.

Where each sits in its class

Trek Domane SL Gen 4 FramesetGiant Contend AR

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 Domane SL Gen 4 FramesetSL Gen 4 FramesetGiant Contend ARAR 1
ForkTrek Domane SLGiant Advanced-Grade Composite, full-composite OverDrive steerer, 12x100mm thru-axle, disc
Framenot listedGiant Contend
Shifternot listedShimano 105 Di2
Derailleurnot listedShimano 105 Di2
Cassettenot listedShimano 105
Chainnot listedKMC X12L-1
Cranksetnot listedShimano 105
Bottom bracketnot listedShimano BB-RS501
Wheelsetnot listedGiant P-R2 Disc
Tirenot listedGiant Gavia Fondo 2
Brakenot listedShimano 105 Di2
Rotornot listedGiant MPH
Handlebarnot listedGiant D-Fuse SL
Stemnot listedGiant Contact
Gripsnot listedVelo Cork tape with gel
Headsetnot listedGiant OverDrive
Seatpostnot listedGiant D-Fuse
Saddlenot listedGiant Approach

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