2025 Thomson Bike Products Tomahawk Base
- Category
- All-road/Gravel
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Steel
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
XS | S | M | L | XL | |
Stack | 539mm | 553mm | 570mm | 593mm | 617mm |
Reach | 374mm | 374mm | 383mm | 398mm | 408mm |
Stack to Reach Ratio | 1.44:1 | 1.48:1 | 1.49:1 | 1.49:1 | 1.51:1 |
Seat Tube Length, Unknown | 475mm | 490mm | 490mm | 530mm | 530mm |
Seat Tube Length, Effective Unknown | 530mm | 535mm | 548mm | 570mm | 587mm |
Top Tube Slope | 9.3deg | 9.2deg | 10.8deg | 8.7deg | 11deg |
Head Tube Angle | 70deg | 70deg | 70deg | 70deg | 70deg |
Seat Tube Angle | 74deg | 74deg | 74deg | 74deg | 74deg |
Head Tube Length | 105mm | 120mm | 135mm | 160mm | 185mm |
Bottom Bracket Drop | 80mm | 80mm | 80mm | 80mm | 80mm |
Bottom Bracket Height | 273mm | 273mm | 273mm | 273mm | 273mm |
Chainstay Length | 435mm | 435mm | 435mm | 435mm | 435mm |
Chainstay Length Horizontal | 427.6mm | 427.6mm | 427.6mm | 427.6mm | 427.6mm |
Front-Center | 602mm | 607mm | 616mm | 640mm | 658mm |
Front-Center Horizontal | 596.4mm | 601.4mm | 610.4mm | 635.4mm | 653.4mm |
Wheelbase | 1024mm | 1029mm | 1038mm | 1063mm | 1081mm |
Fork Offset/Rake | 52mm | 52mm | 47mm | 47mm | 47mm |
Fork Length (Axle-To-Crown) | 392mm | 392mm | 392mm | 392mm | 392mm |
Trail | 73.1mm high | 73.1mm high | 78.5mm high | 78.5mm high | 78.5mm high |
Mechanical Trail | 68.7mm | 68.7mm | 73.7mm | 73.7mm | 73.7mm |
Wheel Flop | 23.5mm | 23.5mm | 25.2mm | 25.2mm | 25.2mm |
Standover Height | 756mm | 770mm | 778mm | 809mm | 821mm |
Tire to Pedal Spindle | 79mm 170 mm cranks | 84mm 170 mm cranks | 93mm 170 mm cranks | 117mm 170 mm cranks | 135mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 103mm 170 mm cranks | 103mm 170 mm cranks | 103mm 170 mm cranks | 103mm 170 mm cranks | 103mm 170 mm cranks |
Base Build
XS | S | M | L | XL | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 42mm | 42mm | 42mm | 42mm | 42mm |
Tire Width Max | 47mm | 47mm | 47mm | 47mm | 47mm |
Tire Outer Diameter | 706mm | 706mm | 706mm | 706mm | 706mm |
Bike Length with Tires | 1730mm | 1735mm | 1744mm | 1769mm | 1787mm |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
All-road/GravelSource:https://bikethomson.com/product/the-tomahawk-frameset/