2023 Trek Bikes Fuel EX 8 Gen 6 Steep 8
- Design
- Flat Bar, Full suspension
- Frame
- Aluminum
- Suspension
- 150mm fork travel, 140mm rear travel, 20% sag
Geometry
XS | S 27.5 | S 29 | M | ML | L | XL | XXL | |
Stack | 575.7mm | 575.8mm | 614.1mm | 618.6mm | 618.7mm | 623.2mm | 636.8mm | 650.4mm |
Reach | 397.9mm | 427.9mm | 422.7mm | 447.7mm | 467.8mm | 482.8mm | 512.8mm | 542.9mm |
Stack to Reach Ratio | 1.45:1 | 1.35:1 | 1.45:1 | 1.38:1 | 1.32:1 | 1.29:1 | 1.24:1 | 1.2:1 |
Seat Tube Length, C-T | 360mm | 380mm | 380mm | 410mm | 420mm | 435mm | 470mm | 500mm |
Top Tube Length, Effective/Horizontal Center | 516.7mm | 551mm | 554.3mm | 584.6mm | 607.9mm | 627.4mm | 662.4mm | 697.2mm |
Top Tube Slope | 25.4deg | 21.9deg | 25.9deg | 22.2deg | 20.5deg | 18.9deg | 16.1deg | 14deg |
Head Tube Angle | 65.5deg | 65.5deg | 65.5deg | 65.5deg | 65.5deg | 65.5deg | 65.5deg | 65.5deg |
Seat Tube Angle | 78.3deg | 77.9deg | 78.4deg | 78deg | 77.2deg | 76.9deg | 76.4deg | 75.8deg |
Head Tube Length | 95mm | 95mm | 95mm | 100mm | 100mm | 105mm | 120mm | 135mm |
Bottom Bracket Drop | 23.4mm | 23.4mm | 36.4mm | 36.4mm | 36.4mm | 36.4mm | 36.5mm | 36.5mm |
Bottom Bracket Height | 271.2mm | 271.2mm | 258.2mm | -19.3mm | -19.3mm | -19.3mm | -19.4mm | -19.4mm |
Chainstay Length | 435mm | 435mm | 435mm | 435mm | 440mm | 440mm | 445mm | 450mm |
Chainstay Length Horizontal | 434.4mm | 434.4mm | 433.5mm | 433.5mm | 438.5mm | 438.5mm | 443.5mm | 448.5mm |
Front-Center | 702.7mm | 732.7mm | 744.8mm | 771.9mm | 786.9mm | 804mm | 835.5mm | 866.9mm |
Front-Center Horizontal | 702.3mm | 732.3mm | 743.9mm | 771mm | 786mm | 803.2mm | 834.7mm | 866.1mm |
Wheelbase | 1136.7mm | 1166.7mm | 1177.4mm | 1204.5mm | 1224.5mm | 1241.7mm | 1278.2mm | 1314.6mm |
Fork Offset/Rake | 44mm | 44mm | 44mm | 44mm | 44mm | 44mm | 44mm | 44mm |
Fork Length (Axle-To-Crown) | 533mm | 533mm | 561mm | 561mm | 561mm | 561mm | 561mm | 561mm |
Trail | 85.9mm very high | 85.9mm very high | 85.9mm very high | -40.6mm | -40.6mm | -40.6mm | -40.6mm | -40.6mm |
Mechanical Trail | 78.2mm | 78.2mm | 78.2mm | -36.9mm | -36.9mm | -36.9mm | -36.9mm | -36.9mm |
Wheel Flop | 32.4mm | 32.4mm | 32.4mm | -15.3mm | -15.3mm | -15.3mm | -15.3mm | -15.3mm |
Standover Height | 719mm | 725.9mm | 739mm | 739mm | 743.9mm | 749.9mm | 768.9mm | 775.8mm |
Tire to Pedal Spindle | 238.1mm 170 mm cranks | 268.1mm 170 mm cranks | 280.2mm 170 mm cranks | 584.8mm 170 mm cranks | 599.8mm 170 mm cranks | 616.9mm 170 mm cranks | 648.4mm 170 mm cranks | 679.8mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 101.2mm 170 mm cranks | 101.2mm 170 mm cranks | 88.2mm 170 mm cranks | -189.3mm 170 mm cranks | -189.3mm 170 mm cranks | -189.3mm 170 mm cranks | -189.4mm 170 mm cranks | -189.4mm 170 mm cranks |
8 Build
XS | S 27.5 | S 29 | M | ML | L | XL | XXL | |
Wheel Size | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 29mm BSD 29 mm BSD | 29mm BSD 29 mm BSD | 29mm BSD 29 mm BSD | 29mm BSD 29 mm BSD | 29mm BSD 29 mm BSD |
Tire Width | 2.6mm | 2.6mm | 2.6mm | 2.6mm | 2.6mm | 2.6mm | 2.6mm | 2.6mm |
Tire Outer Diameter | 589.2mm | 589.2mm | 589.2mm | 34.2mm | 34.2mm | 34.2mm | 34.2mm | 34.2mm |
Bike Length with Tires | 1725.9mm | 1755.9mm | 1766.6mm | 1238.7mm | 1258.7mm | 1275.9mm | 1312.4mm | 1348.8mm |
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
Full-suspension All-mountain/Enduro MTBSource:https://www.trekbikes.com/us/en_US/bikes/mountain-bikes/trail-mountain-bikes/fuel-ex/fuel-ex-8-gen-6/p/36348/?colorCode=grey_black