2025 Giant Trinity Advanced SL Time Trial vs 2027 Trek Speed Concept SLR
The Trek Speed Concept SLR size closest to your S is the M. Compare the M instead
What changes on the Trek Speed Concept SLR
Compared with the Giant Trinity Advanced SL Time Trial in S, the Trek Speed Concept SLR in L places the top of the head tube 28 mm higher and 14 mm further forward, relative to the bottom bracket. Its wheelbase is 32 mm longer, which can contribute to stability at speed.
- Frame stack
- +28 mm
- Higher front end
- Frame reach
- +14 mm
- Longer frame reach
- Wheelbase
- +32 mm
- Longer: steadier at speed
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Only the Giant Trinity Advanced SL Time Trial is drawn. The Trek Speed Concept SLR numbers we have for size L are missing the seat angle.
Geometry side by side
| Measurement | Giant Trinity Advanced SL Time Trial S | Trek Speed Concept SLR L | Difference |
|---|---|---|---|
| Reach | 412 | 426 | +14 mm |
| Stack | 513 | 541 | +28 mm |
| Head tube angle | 73.0° | 72.5° | −0.5° |
| Seat tube angle | 77.0° | not listed | |
| Chainstay length | 405 | 410 | +5 mm |
| Wheelbase | 988 | 1020 | +32 mm |
| BB drop | 70 | 80 | +10 mm |
| Standover | 786 | 808 | +22 mm |
| Seat tube length | 508 | 549 | +41 mm |
| Head tube length | 105 | 115 | +10 mm |
| Effective top tube | not listed | 541 |
Differences are the Trek Speed Concept SLR minus the Giant Trinity Advanced SL Time Trial. Full charts: 2025 Giant Trinity Advanced SL Time Trial, 2027 Trek Speed Concept SLR.
Where each sits in its class
Giant Trinity Advanced SL Time TrialTrek Speed Concept SLR
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 | Giant Trinity Advanced SL Time TrialAdvanced SL Time Trial | Trek Speed Concept SLRSLR |
|---|---|---|
| Frame | Giant Advanced SL-Grade | not listed |
| Handlebar | Giant AeroDrive | not listed |
| Stem | Giant AeroDrive | not listed |
| Seatpost | Giant Trinity | not listed |
| Fork | not listed | Trek SC |
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
