2026 Trek Bikes CheckOUT Base SM
Build
700C/29 in × 50 mm
Insights
Somewhat upright stack and reach vs trend of progressive gravel bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
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Geometry
| Stack | 580mm |
| Reach | 395mm |
| Stack to Reach Ratio | 1.47:1 |
| Seat Tube Length, C-T | 440mm |
| Top Tube Length, Effective/Horizontal HT Top | 564mm |
| Top Tube Slope | 16.9deg |
| Head Tube Angle | 68.8deg |
| Seat Tube Angle | 74.6deg |
| Head Tube Length | 83mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 291mm |
| Chainstay Length | 442mm |
| Chainstay Length Horizontal | 436.4mm |
| Front-Center | 648.4mm |
| Front-Center Horizontal | 644.6mm |
| Wheelbase | 1081mm |
| Fork Offset/Rake | 45mm |
| Fork Length (Axle-To-Crown) | 470mm |
| Trail | 91.8mm very high |
| Mechanical Trail | 85.6mm |
| Wheel Flop | 30.9mm |
| Standover Height | 772mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 117.4mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 121mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 50mm |
| Tire Outer Diameter | 722mm |
| Bike Length with Tires | 1803mm |
| Suspension Type | Full suspension |
| Bar Type | Drop Bar |
| Fork Travel | 60mm |
| Rear Travel | 55mm |
| Suspension Sag | Unknown |
| Frame Material | Carbon/Composite |
| Fork Material | Unknown |
| Brake Type | Disc |
Source:https://www.trekbikes.com/us/en_US/bikes/road-bikes/gravel-bikes/checkout/f/F226/checkout-sl-5/57827/5338095