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2023 FUEL EX
SERVICE MANUAL

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Summary of Contents for Trek 2023 FUEL EX

  • Page 1 2023 FUEL EX SERVICE MANUAL...
  • Page 2 Improper tire size could damage the bicycle Exceeding the recommended maximum fork length could frame. Trek recommends 6mm clearance above and on damage the bicycle and result in injury to the rider. the sides of the tire.
  • Page 3 2023 Fuel EX Adjustable headset Upper bearing cover — W5275173 Compression ring — W532842 Upper bearing — W531676 Upper cup, 0° angle — 5304949 — W5285212 Press-fit lower cup, 0° angle — 5304949 Lower bearing — W532843 Crown race —...
  • Page 4 2023 Fuel EX Derailleur hanger 25Nm Derailleur hanger Washer, 30mm — W5271425 Bolt Tools • 8mm hex tool • Torque wrench (left-hand thread) with 8mm hex bit NOTICE: Do not over-tighten. Over-tightening the bolt WARNING could cause the hanger to break.
  • Page 5 2023 Fuel EX Active Braking Pivot (ABP) Carbon frame 20x30 20x30 Aluminum frame 20x30 20x30 Tools Switch lever — W573860 • Bearing press Thru axle — W583469 • Cassette lockring tool • Grease Non-driveside ABP dropout nut • Threadlocker guide —...
  • Page 6 2023 Fuel EX Rocker pivot and seatstay 12x21 12x21 12x21 12x21 Important: Install driveside bearing first. Rocker pivot: Screws — W5270150 Search for part number listed below on trekbikes.com to find the color-matched part for your bike. Concave washers —...
  • Page 7 2023 Fuel EX Main pivot and chainstay 15Nm 17x26 17x26 Important: Install driveside bearing first 15Nm Tools Main pivot axle — W5270022 • Bearing press Bearings — W5256338 • 5mm hex tool • Torque wrench with 8mm hex bit Main pivot sleeve —...
  • Page 8 2023 Fuel EX Rear shock hardware and dimensions Shock Dimensions Eye-to Eye-length: 185mm Stroke length: 55mm Upper width: 54mm x 10mm Lower width: 40mm x 8mm 12x21 12x21 17Nm 17Nm 10Nm Upper bolts, M10 x 1 x 19mm — W5270031 Tools •...
  • Page 9 2023 Fuel EX Adjust the progression The shock mino links can be flipped to fine tune the shock performance for the terrain or rider preference. Tools • 6mm hex tool • Torque wrench with 6mm hex bit 1. Remove the lower shock mount bolt.
  • Page 10 2023 Fuel EX Cable routing 1.7Nm       Rubber housing guide Dropper cable — 5275988 Exit guide Rear brake hose Bolt — W532763 Derailleur housing   Zip tie Plug — W5275264...
  • Page 11 2023 Fuel EX Frame guards — carbon frame   Lower down tube guard: Seatstay adhesive guard — W5271371 XS and S frames — W5283181 Brake hose adhesive guard — W326986 M – XL frames — W5283182 Button head screws —...
  • Page 12 2023 Fuel EX Frame guards — aluminum frame     Brake hose adhesive guard — W326986 Lower down tube guard — W5279934 Use isopropyl alcohol to clean the frame surface Button head screws — W575056 where the guard attaches. Wait for the alcohol to dry before applying the guard.
  • Page 13 2023 Fuel EX Down tube storage Carbon frame Aluminum frame 1.5Nm Water bottle cage bolt, 8mm long Water bottle cage bolt, 16mm long — W5257590 Storage door Water bottle cage bolt, 8mm long Button head screws — W575056 Water bottle cage bolt, 16mm long...
  • Page 14 2023 Fuel EX Adjust the geometry — headset angle 0° +1° -1° Install the angled cups 1. Grease the cups and head tube bores. Tools • Upper angled cup: XS - L frames — W5295319 XL - XXL frames —...
  • Page 15 2023 Fuel EX Adjust the geometry — seatstay mino link Tools • 4mm and 6mm hex tools 6. Use a 4mm hex tool to turn the screw in the mino link • Torque wrench with 4mm and 6mm bits to flip the link to either the slacker or steeper position.
  • Page 16 Improper tire size could damage the bicycle Exceeding the recommended maximum fork length could frame. Trek recommends 6mm clearance above and on damage the bicycle and result in injury to the rider. the sides of the tire.