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Trek CHECKPOINT SL GEN 3 Service Manual

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CHECKPOINT SL GEN 3
SERVICE MANUAL

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Summary of Contents for Trek CHECKPOINT SL GEN 3

  • Page 1 CHECKPOINT SL GEN 3 SERVICE MANUAL...
  • Page 2 Install the RCS Race Universal Frame IsoSpeed Service the Storage door Frame guards Frame mounts Bottle cage IsoSpeed adapters Triangle bag Adventure bag Universal Chainkeeper Front derailleur Specifications derailleur hanger hanger (UDH) and axles Copyright 2024 Trek Bicycle Corporation All Rights Reserved...
  • Page 3 It does not contain instructions for all components (such as brake calipers). Refer to the original manufacturer for more information. Torque value Replacement parts Trek recommends using only Trek OEM (original Apply appropriate threadlocker manufacturer) replacement parts. Additional info The Owner's Manual is available at Trekbikes.com/manuals.
  • Page 4 2025 Checkpoint Routing — mechanical  Storage door frame Rear brake hose Housing grommets — W330578 Front brake hose Cable housing grommet — W329119 Rear derailleur cable Front derailleur cable Split ring — W5315339...
  • Page 5 2025 Checkpoint Routing — mechanical: instructions Route the rear brake hose through the frame. Route Install the bottom bracket above the rear shift the front brake hose through the fork. housing and rear brake hose. NOTE: This frame was designed to route the housings below the bottom bracket.
  • Page 6 2025 Checkpoint Routing — Di2 Right shift lever  Front derailleur Rear derailleur Di2 wire grommet — W317292 Rear brake hose Di2 battery holder — W5290297 Front brake hose Battery — *BT-DN300 Di2 wires — *EW-SD300-I Junction B — *SM-JC41 Split ring —...
  • Page 7 2025 Checkpoint Routing — Di2: instructions Route the rear brake hose through the frame. Route Connect the Di2 wires to the Di2 junction box and the the front brake hose through the fork. Di2 battery. Insert the junction box into the bottom bracket shell.
  • Page 8 2025 Checkpoint Routing — AXS  Hole plug — W547906 Rear brake hose Front brake hose Split ring — W5315339 Storage door frame Housing grommets — W330578...
  • Page 9 2025 Checkpoint Routing — AXS: instructions Route the rear brake hose through the frame. Route Use a cable (zip) tie to connect the rear brake the front brake hose through the fork. housing to the storage door frame.   Install the headset and stem following one of the procedures below (depending on your stem system): •...
  • Page 10 2025 Checkpoint Routing — dropper post 1x / 2x Di2 2x mechanical 1x / 2x AXS 1x mechanical  2x mechanical example 2x mechanical example Front brake hose Dropper post cable Rear derailleur cable Split ring — W5315339 Front derailleur cable Rear brake hose...
  • Page 11 2025 Checkpoint RCS Race headset NOTE: The RCS Race headset is only compatible with electronic shifting. ≤4 Nm 5.2 Nm 9-10 Nm 5.2 Nm 6.5 mm 2.5 mm Spacers (15 mm) — W5316080 Fastener (M6 x 35 mm) Split ring — W5315339 W547432 Top cap Headset bearings —...
  • Page 12 2025 Checkpoint RCS Race spacers NOTE: If you remove spacers below the stem, you must add the same height of spacers above the stem or cut the steerer tube. Expander plug flange WARNING Do not exceed 40 mm of headset spacers above or below the stem. If there are Steerer more than 40 mm of spacers, the steerer tube could become damaged and tube...
  • Page 13 2025 Checkpoint Blendr base 0.5 Nm Wahoo 4 Nm 0.5 Nm 4 Nm Garmin Fastener (M5 x 16 mm) Fastener (M5 x 16 mm) Fastener (M4 x 10 mm) 5325346 Fasteners (M3 x 2 mm) Base Knuckle Reflector mount Garmin puck — 5266373 Wahoo puck —...
  • Page 14 2025 Checkpoint Install the RCS Race Before you begin: • Install derailleur(s) and brake calipers. • Route all housings through the frame/fork and connect them to the derailleurs/calipers. • Make sure the steerer tube is the correct length for the stack/spacer height (see RCS Race spacers).
  • Page 15 2025 Checkpoint Install the RCS Race (continued) Slide the spacers down the steerer tube. Then feed Slide the barstem down the steerer tube. about 40 mm of the rear brake hose into the frame so the handlebar can turn freely. Before installing the barstem, attach the exposed cover if you plan to use it.
  • Page 16 2025 Checkpoint RCS Pro headset ≤4 Nm 5.2 Nm 5.2 Nm 4 Nm 9-10 Nm -7° 7° 7° x 60/70 mm — W5274602 -7° x 60/70/80 mm — W5274599 1.5 Nm -7° x 90/100/110 mm — W5274600 7° x 80/90/100 mm — W5274603 -7°...
  • Page 17 2025 Checkpoint RCS Pro spacers NOTE: If you remove spacers below the stem, you must add the same height of spacers above the stem or cut the steerer tube. Expander plug flange WARNING Do not exceed 40 mm of headset spacers above or below the stem. If there Steerer are more than 40 mm of spacers, the steerer tube could become damaged tube...
  • Page 18 2025 Checkpoint Install the RCS Pro Before you begin: • Install derailleur(s) and brake calipers. • Route all cables/hoses through the frame/fork and connect them to the derailleurs/calipers. • Make sure the steerer tube is the correct length for the stack/spacer height (see RCS Pro spacers).
  • Page 19 2025 Checkpoint Install the RCS Pro (continued) Slide the spacers down the steerer tube. Then Install the top cap and top cap fastener. feed about 40 mm of the rear brake hose and the ≤4 Nm derailleur cable housing(s) into the frame so the handlebar can turn freely.
  • Page 20 2025 Checkpoint Install the RCS Pro (continued) 10. Tighten both stem fasteners — switching between them — until they are fully torqued. 5.2 Nm 11. Insert the routing cover. Front brake hose Rear brake hose Rear shift housing Front shift housing Standard Moto 12.
  • Page 21 2025 Checkpoint RCS Universal headset ≤4 Nm 9-10 Nm Fastener (M6 x 35 mm) Expander plug W547432 Top cap 5 mm — 5253930 Spacers (1-1/8" / 28.6 mm) 10 mm — 5253931 Bearing top cover 5328901 Bearing top cover grommet Split ring —...
  • Page 22 2025 Checkpoint RCS Universal spacers NOTE: If you remove spacers below the stem, you must add the same height of spacers above the stem or cut the steerer tube. Expander plug flange WARNING Do not exceed 40 mm of headset spacers above or below the stem. If there Steerer are more than the maximum height of spacers, the steerer tube could tube...
  • Page 23 2025 Checkpoint Install the RCS Universal Before you begin: • Install derailleur(s) and brake calipers. • Route all cables/hoses through the frame/fork and connect them to the derailleurs/calipers. • Make sure the steerer tube is the correct length for the stack/spacer height (see RCS Universal spacers).
  • Page 24 2025 Checkpoint Install the RCS Universal (continued) Route the brake hoses/cable housings through the Install the top cap and top cap fastener. bearing top cover. Then slide the bearing top cover ≤4 Nm down the steerer tube. Rear shift housing Rear brake hose Front brake hose Front shift housing...
  • Page 25 2025 Checkpoint IsoSpeed 10.5 Nm Pivot axle Wave washer 5328243 Washer Bushing sleeve Pivot bolt Flanged bushings — W5256074 Grommet — W5316588...
  • Page 26 2025 Checkpoint Service the IsoSpeed NOTICE: Do not perform routine maintenance on the Apply high-strength threadlocker to the pivot bolt IsoSpeed. Only service IsoSpeed hardware if you are threads. replacing parts. IMPORTANT: Let the threadlocker fully dry following NOTE: If you remove the bushings or the wave washer, you the manufacturer's specifications before installing to must replace them.
  • Page 27 2025 Checkpoint Storage door 2.5 Nm 1.5 Nm 1.5 Nm Storage door (matte black) Fasteners (M4 x 8 mm) *5328604 Storage door frame Nut clamps Fasteners (M5 x 16 mm) — W596821 *This is a color-matched part — search trekbikes.com to find the right color for your bike.
  • Page 28 2025 Checkpoint Frame guards 1.5 Nm Install the front fastener first. 1.5 Nm Install the chainstay guard or strike Fasteners (M4 x 6 mm) — W575056 plate Chainstay guard — W5316540 Down tube guard — W5316403 Strike plate — W5316536 Clean the mating surfaces on the frame with 50/50 isopropyl alcohol mix.
  • Page 29 2025 Checkpoint Frame mounts NOTE: There are additional mounts on larger frame sizes (see graphic below). XS/S M/M-L L/XL 0.5 Nm 2.5 Nm 0.5 Nm 0.5 Nm Set screws (M5 x 5 mm) Plugs (M5) — W308963 Set screw (M6 x 5 mm) — W5321175 Fasteners (M5 x 16 mm) —...
  • Page 30 2025 Checkpoint Bottle cage adapters Use the adapter(s) to fit three bottle cages in the frame triangle. NOTE: Only frame sizes M and larger can fit three bottles in the frame triangle. *M frame shown below 2.5 Nm 2.5 Nm 2.5 Nm 2.5 Nm M-L/L...
  • Page 31 2025 Checkpoint Triangle bag NOTE: Triangle bags are sold aftermarket. The charts below show the largest bottles you can fit with the bag installed. Thumb screws — 5324792 15 oz (444 ml) bottle 21 oz (621 ml) bottle 26 oz (769 ml) bottle 34 oz (1,006 ml) bottle Triangle bag, XS/S (1 L) —...
  • Page 32 2025 Checkpoint Adventure bag NOTE: Adventure bags are sold aftermarket. The charts below show the largest bottles you can fit with the bag installed. Not compatible Not compatible Thumb screws — 5324792 15 oz (444 ml) bottle 21 oz (621 ml) bottle 26 oz (769 ml) bottle 34 oz (1,006 ml) bottle Adventure bag, M (2 L) —...
  • Page 33 2025 Checkpoint Universal derailleur hanger (UDH) and axles 10 Nm 25 Nm 10 Nm Switch lever (black) — *W5312899 Rear axle (M12 x 166 mm) — *W5312169 *color-matched part — see Trekbikes.com for full list Derailleur hanger Washer (25 mm) W5271424 Fastener (M12 x 16 mm) Front axle (M12 x 119.5 mm) —...
  • Page 34 2025 Checkpoint Chainkeeper Clearance to chain 1 Nm 1 mm 3 Nm High position Low position chainring 34T-44T chainring 30T-40T Base 5320962 Fastener (M4 x 22 mm) Fastener (M5 x 16 mm) — 5328801...
  • Page 35 2025 Checkpoint Front derailleur hanger 3 Nm 1x drivetrain only Tighten until flush Fasteners (M4 x 10 mm) 5320961 Front derailleur hanger Set screws (M4 x 8 mm) — 5320962...
  • Page 36 2025 Checkpoint Specifications Frame Seatpost Checkpoint WARNING Front 100 mm Hub OLD Always follow the seatpost manufacturer’s minimum Rear 142 mm insertion recommendation. Failure to follow the Upper 28.6 mm recommendation could cause damage to the seatpost Fork steerer tube OD Lower 38.8 mm and result in injury to the rider.