2018 Orbea Terra M31-D
- Category
- All-road/Gravel
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Carbon/Composite
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
XS (51) | S (53) | M (55) | L (57) | XL (60) | |
Stack | 545mm | 560mm | 575mm | 600mm | 625mm |
Reach | 370mm | 378mm | 385mm | 392mm | 400mm |
Stack to Reach Ratio | 1.47:1 | 1.48:1 | 1.49:1 | 1.53:1 | 1.56:1 |
Seat Tube Length, C-T | 460mm | 510mm | 554mm | 590mm | 630mm |
Seat Tube Length, Effective Unknown | 531mm | 543mm | 555mm | 570mm | 585mm |
Top Tube Slope | 11.7deg | 7.7deg | 4.6deg | 3.5deg | 2.1deg |
Head Tube Angle | 70.5deg | 70.5deg | 70.5deg | 70.5deg | 70.5deg |
Seat Tube Angle | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg |
Head Tube Length | 122mm | 138mm | 156mm | 182mm | 212mm |
Bottom Bracket Drop | 70mm | 70mm | 68mm | 68mm | 65mm |
Bottom Bracket Height | 281mm | 281mm | 283mm | 283mm | 286mm |
Chainstay Length | 430mm | 430mm | 430mm | 430mm | 430mm |
Chainstay Length Horizontal | 424.3mm | 424.3mm | 424.6mm | 424.6mm | 425.1mm |
Front-Center | 596.9mm | 609.8mm | 622.1mm | 639mm | 656.2mm |
Front-Center Horizontal | 592.7mm | 605.7mm | 618.4mm | 635.4mm | 652.9mm |
Wheelbase | 1017mm | 1030mm | 1043mm | 1060mm | 1078mm |
Fork Offset/Rake | 51mm | 51mm | 51mm | 51mm | 51mm |
Fork Length (Axle-To-Crown) | 400mm | 400mm | 400mm | 400mm | 400mm |
Trail | 70.2mm high | 70.2mm high | 70.2mm high | 70.2mm high | 70.2mm high |
Mechanical Trail | 66.2mm | 66.2mm | 66.2mm | 66.2mm | 66.2mm |
Wheel Flop | 22.1mm | 22.1mm | 22.1mm | 22.1mm | 22.1mm |
Standover Height | 828mm | 843mm | 860mm | 885mm | 913mm |
Tire to Pedal Spindle | 75.9mm 170 mm cranks | 88.8mm 170 mm cranks | 99.1mm 172 mm cranks | 116mm 172 mm cranks | 130.2mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 111mm 170 mm cranks | 111mm 170 mm cranks | 111mm 172 mm cranks | 111mm 172 mm cranks | 111mm 175 mm cranks |
M31-D Build
XS (51) | S (53) | M (55) | L (57) | XL (60) | |
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 | 40mm | 40mm | 40mm | 40mm | 40mm |
Tire Outer Diameter | 702mm | 702mm | 702mm | 702mm | 702mm |
Bike Length with Tires | 1719mm | 1732mm | 1745mm | 1762mm | 1780mm |
Crank Length | 170mm | 170mm | 172mm | 172mm | 175mm |
Handlebar Width | 420mm | 420mm | 420mm | 440mm | 440mm |
Stem Length | 100mm | 100mm | 110mm | 110mm | 110mm |
Stem Angle | 8deg | 8deg | 8deg | 8deg | 8deg |
Published Sizing Recommendations
Height | 153 cm to 165 cm | 157 cm to 177 cm | 174 cm to 188 cm | 185 cm to 195 cm | 193 cm to 195 cm |
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://www.orbea.com/downloads/products/TECHNICAL_MANUAL_TERRA__2017_EN_.pdf