2022 Surly Cross-Check Flat Bar vs 2024 Trek Boone
The 49 is the Trek Boone size closest to your 46 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 Boone
Compared with the Surly Cross-Check Flat Bar in 46, the Trek Boone in 49 places the top of the head tube 6 mm higher and 6 mm further back, relative to the bottom bracket. Its wheelbase is 9 mm longer, which can contribute to stability at speed.
- Frame stack
- +6 mm
- Higher front end
- Frame reach
- −6 mm
- Shorter frame reach
- Wheelbase
- +9 mm
- Longer: steadier at speed
- Head angle
- −1.0°
- Slacker: calmer steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Only the Surly Cross-Check Flat Bar is drawn. The Trek Boone numbers we have for size 49 are missing the seat angle.
Geometry side by side
| Measurement | Surly Cross-Check Flat Bar 46 | Trek Boone 49 | Difference |
|---|---|---|---|
| Reach | 380.8 | 375 | −6 mm |
| Stack | 528.0 | 534 | +6 mm |
| Head tube angle | 72.0 | 71.0° | −1.0° |
| Seat tube angle | 74.5 | not listed | |
| Effective top tube | 528.8 | 518 | −11 mm |
| Chainstay length | 420.0 | 425 | +5 mm |
| Wheelbase | 991.9 | 1001 | +9 mm |
| BB drop | 66.0 | 70 | +4 mm |
| Standover | 766.7 | 747 | −20 mm |
| Seat tube length | 460.0 | 476 | +16 mm |
| Fork length | 400.0 | not listed | |
| Head tube length | 91.0 | 110 | +19 mm |
Differences are the Trek Boone minus the Surly Cross-Check Flat Bar. Full charts: 2022 Surly Cross-Check Flat Bar, 2024 Trek Boone.
Where each sits in its class
Surly Cross-Check Flat BarTrek Boone
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 Boone |
|---|---|---|
| Frame | Surly Cross-Check | not listed |
| Fork | Surly Cross-Check | not listed |
| Shifter | SRAM X5 | not listed |
| Derailleur | SRAM X5 | not listed |
| Cassette | Shimano PG920 | not listed |
| Chain | KMC X9 | not listed |
| Crankset | Surly E400 | not listed |
| Chainring | 42 | not listed |
| Bottom bracket | Shimano UN55 | not listed |
| Wheelset | Alex Rims Adventurer | not listed |
| Tire | Surly Knard | not listed |
| Hub | SRAM MTH300 | not listed |
| Rim | Alex Rims Adventurer | not listed |
| Brake | Tektro M730 | not listed |
| Handlebar | Surly Dimension | not listed |
| Stem | Satori 25.4 | not listed |
| Headset | Cane Creek 5 | not listed |
| Seatpost | Kalloy 27.2 | not listed |
| Saddle | WTB Silverado | not listed |
| Rack | Msw Pork Chop | not listed |
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