2023 Fuel EX
1
Safety
WARNING
Properly tighten hardware
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
Reapply threadlocker
All reused-fasteners with pre-applied threadlocker must
be cleaned with isopropyl alcohol and have new thread-
locker applied before re-assembly. If threadlocker 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
Safety Active Braking
Pivot (ABP)
Rear shock
hardware and
dimensions
Frame guards —
carbon frame
Adjust the
geometry —
headset angle
Adjustable headset Rocker pivot and
seatstay
Adjust the
progression
Frame guards —
aluminum frame
Adjust the
geometry —
seatstay mino link
Specications
Chainline (1x only)
55mm
Chainring (1 x only)
Minimum Maximum
28T Round: 34T
Oval: 32T
Rear brake mount
Minimum Maximum
180mm, direct mount Adaptable to 203mm
Maximum tire siz e
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 /IS CG tabs
Seat post
WARNING
Always follow the seat post 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
S (27.9” and
29” wheels) 225mm
Seat tube inside diameter 34.9
Seat tube post clamp
outer diameter 39.5
Fork
WARNING
Exceeding the recommended maximum fork length co
damage the bicycle and result in injury to the rider.
Travel
Sag
Axle to Crown
Derailleur hanger Main pivot and
chainstay
Cable routing Down tube storage Specications
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