2022 Surly Cross-Check Flat Bar vs 2023 Trek Checkpoint SL
The 49 is the Trek Checkpoint SL size closest to your 42 Surly Cross-Check Flat Bar. 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 Checkpoint SL
Compared with the Surly Cross-Check Flat Bar in 42, the Trek Checkpoint SL in 49 places the top of the head tube 10 mm higher and 14 mm further forward, relative to the bottom bracket. Its wheelbase is 35 mm longer, which can contribute to stability at speed.
- Frame stack
- +10 mm
- Higher front end
- Frame reach
- +14 mm
- Longer frame reach
- Wheelbase
- +35 mm
- Longer: steadier at speed
- Head angle
- −0.8°
- Slacker: calmer steering
- Chainstays
- +15 mm
- Longer: more planted
The two frames
Surly Cross-Check Flat Bar, 42Trek Checkpoint SL, 49Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Surly Cross-Check Flat Bar 42 | Trek Checkpoint SL 49 | Difference |
|---|---|---|---|
| Reach | 378.7 | 393 | +14 mm |
| Stack | 528.0 | 538 | +10 mm |
| Head tube angle | 72.0 | 71.2 | −0.8° |
| Seat tube angle | 75.0 | 74.1 | −0.9° |
| Effective top tube | 522.0 | 541 | +19 mm |
| Chainstay length | 420.0 | 435 | +15 mm |
| Wheelbase | 989.8 | 1025 | +35 mm |
| BB drop | 66.0 | not listed | |
| Standover | 747.9 | 735 | −13 mm |
| Seat tube length | 420.0 | not listed | |
| Fork length | 400.0 | not listed | |
| Head tube length | 91.0 | not listed |
Differences are the Trek Checkpoint SL minus the Surly Cross-Check Flat Bar. Full charts: 2022 Surly Cross-Check Flat Bar, 2023 Trek Checkpoint SL.
Where each sits in its class
Surly Cross-Check Flat BarTrek Checkpoint SL
Each bike is ranked against the other gravel 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 | Surly Cross-Check Flat BarFlat Bar | Trek Checkpoint SLSL 5 |
|---|---|---|
| Frame | Surly Cross-Check | Trek Checkpoint SL |
| Fork | Surly Cross-Check | Trek Checkpoint SL |
| Shifter | SRAM X5 | Shimano GRX RX600 |
| Derailleur | SRAM X5 | Shimano GRX RX810, Shimano GRX RX810 Long Cage |
| Cassette | Shimano PG920 | Shimano HG700-11 105 |
| Chain | KMC X9 | Shimano HG601 105 |
| Crankset | Surly E400 | Shimano GRX RX600 |
| Chainring | 42 | Shimano GRX RX600 |
| Bottom bracket | Shimano UN55 | Praxis T47 |
| Wheelset | Alex Rims Adventurer | Bontrager Paradigm SL |
| Tire | Surly Knard | Bontrager GR1 Team Issue |
| Hub | SRAM MTH300 | not listed |
| Rim | Alex Rims Adventurer | Bontrager Paradigm SL |
| Brake | Tektro M730 | Shimano GRX RX400 |
| Handlebar | Surly Dimension | Bontrager Elite Gravel |
| Stem | Satori 25.4 | Bontrager Elite |
| Headset | Cane Creek 5 | Trek Integrated |
| Seatpost | Kalloy 27.2 | Bontrager Carbon |
| Saddle | WTB Silverado | Bontrager P3 Verse |
| Rack | Msw Pork Chop | not listed |
| Rotor | not listed | Shimano SM-RT70 |
| Bar tape | not listed | Bontrager Supertack Performance |
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