Velopedia Bicycle Archive
2021 Trek Fuel EX C Gen 5 Frameset
Mountain bicycle from the Velopedia specification archive.
- Original MSRP
- $1,599.93
- Sizes
- XL (29" wheel)
- Colors
- Lithium Grey/Factory Orange
- Weight
- M - 3.15 kg / 6.95 lbs
- Geometry
- 2 manufacturer sizes
- Archive ID
- 900000809
Current market
Snapshot not yet availableMove, scroll, tap or type to start the protected update.
Velopedia analysis
What the specifications mean
The record establishes rear suspension without confirming a suspension fork, making shock condition and pivot play the relevant suspension checks. Carbon construction changes the inspection emphasis from metal-style dents and corrosion to impact damage, ripples and overtightened clamp areas. The published M - 3.15 kg / 6.95 lbs weight is a reference for the documented build; frame size, pedals, tire setup and production substitutions can change an actual scale reading.
Used-frameset inspection
If you’re buying this frameset used
Before buying: confirm the serial number and exact model, inspect frame and fork alignment, and inventory every included axle, hanger, clamp, headset part, cable guide and proprietary fitting.
Inspect the frame and fork →- FrameInspect the frame in bright light, especially around the head tube, bottom bracket, chainstays and clamped areas. Look for cracks, ripples, crushed sections or signs of a previous impact.Inspect the frame and fork →
- SuspensionAsk when the rear shock was last serviced. Check the shaft and seals for damage or oil, cycle the shock through its travel and test every suspension pivot for play.Evaluate the suspension →
- Included hardwareInventory every axle, hanger, clamp, headset part, cable guide, frame plug and proprietary fitting included with the frameset. Confirm replacement availability before treating a missing small part as insignificant.
Used-frameset inspection checklist 16 universal checks for a record with limited component data Open checklistClose checklist
The archived record does not contain enough component detail for a fully specification-informed frameset checklist. Use these universal checks on the frameset in front of you, inventory every included part and confirm exact interfaces before choosing components.
Identity and fit
Follow the full used-bike inspection order →Archived: 2021 Trek Fuel EX C Gen 5 Frameset · Mountain · Published sizes: XL (29" wheel)
Frame and fork
Inspect the frame and fork →Archived: Frame: Carbon fiber
Suspension
Evaluate the suspension →Archived: Rear shock: XS, S: Fox Factory Float EVOL, RE:aktiv with Thru Shaft 3-position damper, Kashima Coat, tuned by Trek Suspension Lab, 210x52.5mm / S, M, ML, L, XL: Fox Factory Float EVOL, RE:aktiv with Thru Shaft 3-position damper, Kashima Coat, tuned by Trek Suspension Lab, 210x55mm
Alignment
Inspect the frame and fork →Frame interfaces
Inspect the bottom bracket and shell →Before accepting the frameset
Inspect the frame and fork →Interpretation based on the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
Have you owned this bike?Help preserve its real-world history by sharing your owner experience.
Share the details that would help another rider understand how this model fits, rides and holds up over time. Velopedia reviews every contribution before publication.
Already contributed? Send me a fresh private edit link
For privacy, Velopedia shows the same confirmation whether or not an experience exists.
Frameset
| Frame Construction | XL: OCLV Mountain Carbon main frame & stays, internal storage, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, ISCG 05, magnesium rocker link, Mino Link, ABP, Boost148, 130mm travel / XS, S, M, ML, L: OCLV Mountain Carbon main frame & stays, internal storage, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, ISCG 05, magnesium rocker link, Mino Link, ABP, Boost148, 130mm travel |
|---|---|
| Frame Material | Carbon fiber |
| Rear Shock | XS, S: Fox Factory Float EVOL, RE:aktiv with Thru Shaft 3-position damper, Kashima Coat, tuned by Trek Suspension Lab, 210x52.5mm / S, M, ML, L, XL: Fox Factory Float EVOL, RE:aktiv with Thru Shaft 3-position damper, Kashima Coat, tuned by Trek Suspension Lab, 210x55mm |
Cockpit & Contact Points
| Headset | Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom |
|---|---|
| Stem | XS, S: Bontrager Line Pro, 35mm, 0 degree, 40mm length / M, ML, L, XL: Bontrager Line Pro, 35mm, 0 degree, 50mm length / M, ML, L, XL: Bontrager Line Pro, 35mm, Blendr compatible, 0 degree, 45mm length |
Wheels & Tires
| Wheel Size | 29" |
|---|
Size-specific frame data
Geometry
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | 21.5" (XL) · High | 21.5" (XL) · Low |
|---|---|---|
| Seat tube | 500 mm | 500 mm |
| Effective top tube | 662 mm | 663 mm |
| Head tube | 120 mm | 120 mm |
| Head-tube angle | 66.5° | 66° |
| Seat-tube angle | 75.5° | 75° |
| Actual seat-tube angle | 68° | 67.5° |
| Chainstay / rear center | 435 mm | 437 mm |
| Wheelbase | 1241 mm | 1242 mm |
| Bottom-bracket drop | 27 mm | 34 mm |
| Bottom-bracket height | 346 mm | 339 mm |
| Reach | 500 mm | 495 mm |
| Stack | 623 mm | 627 mm |
| Standover height | 776 mm | 770 mm |
| Fork offset / rake | 43 mm | 43 mm |
| Trail | 116 mm | 119 mm |
| Wheel size | 29" | 29" |
Geometry source: Trek first-party OCC sizing data ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.