2021 Trek Bikes Fuel EX 9.8 S 15.5 (27.5") High

Build

650B/27.5 in × 2.6 in

Insights

Somewhat aggressive stack and reach vs trend of full-suspension trail mtb bikes
Design deviates from other sizes of Trek Bikes Fuel EX
Suspension sag unknown
Geometry may mis-represent actual riding geometry

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
572mm
Reach
415mm
Stack to Reach Ratio
1.38:1
Seat Tube Length, C-T
395mm
Top Tube Length, Effective/Horizontal HT Top
568mm
Top Tube Slope
20.2deg
Head Tube Angle
66deg
Seat Tube Angle
75deg
Head Tube Length
100mm
Bottom Bracket Drop
21mm
Bottom Bracket Height
337mm
Chainstay Length
437mm
Chainstay Length Horizontal
436.5mm
Front-Center
707.8mm
Front-Center Horizontal
707.5mm
Wheelbase
1144mm
Fork Offset/Rake
43mm
Trail
112.3mm
very high
Mechanical Trail
102.6mm
Wheel Flop
41.7mm
Standover Height
702mm
Tire to Pedal Spindle Distance
With 170 mm cranks
179.8mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
167mm

9.8 Build

Wheel Size
650B, 27.5 inch (584mm BSD)
Tire Width
2.6in
Tire Outer Diameter
716.1mm
Bike Length with Tires
1860.1mm
Crank Length
170mm
Handlebar Width
780mm
Stem Length
35mm
Suspension Type
Full suspension
Bar Type
Flat Bar
Fork Travel
140mm
Rear Travel
Unknown
Suspension Sag
Unknown
Frame Material
Carbon/Composite
Fork Material
Unknown
Brake Type
Disc

Published Sizing Recommendations

Height
153 cm
to
166.5 cm
PBH
72 cm
to
79 cm
Source:https://www.trekbikes.com/ca/en_CA/bikes/mountain-bikes/trail-mountain-bikes/fuel-ex/fuel-ex-9-8-xt/p/33408/