2023 Fuel EX
1
Safety
WARNING
Tighten hardware properly
Always tighten hardware to the specied torque.
Over-tightening hardware could deform or break the
hardware or components. Under-tightening hardware
could cause hardware or components to become loose.
Either situation could damage the bicycle and result in
injury to the rider.
WARNING
Re-apply threadlocker
All reused-fasteners with a pre-applied threadlocker
must be cleaned with isopropyl alcohol and have new
threadlocker applied before re-assembly. If a threadlock-
er is not applied, the fasteners may loosen, which could
damage the bicycle and result in injury to the rider.
Legend
Apply grease
Do not apply grease
Apply threadlocker
Nm
Torque
Hex tool
Torx tool
Drift size
Zip tie
Contents
Safety Active Braking
Pivot (ABP)
Rear shock
hardware and
dimensions
Routing with AXS
shift
Adjust the
geometry – head-
set angle
Adjustable headset Rocker pivot and
seat stay
Adjust the
progression
Frame guards —
aluminium frame
Adjust the
geometry – seat
stay Mino link
Specications
Chainline (1x only)
55mm
Chainring (1x only)
Minimum Maximum
28T Round: 34T
Oval: 32T
Rear brake mount
Minimum Maximum
180mm, direct mount Adaptable to 203mm
Maximum tire size
Notice: Measurements of actual tires may vary. Always
verify there is sufcient clearance between the tire and
the frame. Improper tire size could damage the bicycle
frame. Trek recommends 6mm clearance above and on
the sides of the tire.
Wheel set Maximum tire size
29" 29" x 2.5"
27.5" (XS and S frame) 27.5" x 2.5"
Bottom bracket /ISCG tabs
Bottom bracket ISCG tabs
BSA 73 ISCG 05, 3 bolt
Seat post
WARNING
Always follow the seatpost manufacturer’s minimum
insertion recommendation. Failure to follow the recom-
mendation could cause damage to the seatpost and
result in injury to the rider.
Measurement
Maximum
insertion
Frame Carbon
XS 205mm
S (27.9” and
29” wheels)
225mm
M 255mm
ML 266mm
L 281mm
XL 316mm
XXL —
Seat tube inside diameter 34.9
Seat tube post clamp
outer diameter
39.5
Fork
WARNING
Exceeding the recommended maximum fork length could
damage the bicycle and result in injury to the rider.
Travel
Sag
Axle to Crown
Frame/
Wheel Size
Axle to Race
(mm)
Travel
(mm)
XS and S /
27.5" wheels
Recommended 534 140
Maximum 550 150
S, M, ML, L, XL, XXL /
29" wheels
Recommended 562 150
Maximum 578 160
Refer to the suspension setup card included with your bike
or the suspension calculator at
trekbikes.com/suspension-calculator.
Dérailleur hanger Main pivot and
chain stay
Routing with
mechanical shift
Routing with
AXS shift
Down tube storage Specications
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