Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2021 Trek Checkpoint SL 6
Value Guide market data · 2021 Trek Checkpoint SL 6
12-month trend
14%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2021 Trek Checkpoint SL 6
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Checkpoint model years
2021 Checkpoint SL 6 lineup
Overview
About this bike
2021 Trek Checkpoint SL 6 value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork
- Checkpoint carbon, tapered carbon steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle
- Frame
- 500 Series OCLV Carbon, IsoSpeed, tapered head tube, Control Freak internal routing, 3S chain keeper, rack and fender mounts, flat mount disc, horizontal sliding dropouts, 142x12mm thru axle
Drivetrain
- Groupset
- 2021 Trek Checkpoint SL 6
- Crankset
- Shimano GRX RX810, 48/31
- Bottom Bracket
- Trek BB90
- Chain
- Shimano Ultegra HG701, 11-speed
- Front Derailleur
- Shimano GRX RX810, braze-on
- Rear Derailleur
- Shimano GRX RX810, long cage, 34T max cog
- Cassette/Rear Cogs
- Shimano Ultegra HG800-11, 11-34, 11 speed
- Shifters
- Shimano GRX RX810, 11 speed
Brakes
- Brakes
- Shimano RX810 hydraulic disc, flat mount
Cockpit
- Saddle
- Bontrager Arvada Comp, steel rails, 138mm width
- Headset
- FSA Integrated, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom
- Stem
- Bontrager Pro, 31.8mm, Blendr compatible, 7 degree
- Handlebars
- Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop
- Seat Post
- Bontrager carbon seatmast cap, 20mm offset
- Tape/Grips
- Bontrager Supertack Perf tape
Wheels & Tires
- Tires
- Bontrager GR1 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 120 tpi, 700x40c
Accessories
- Rims/Wheels
- Front: Bontrager Paradigm Comp 25, Tubeless Ready, 25mm rim width, 100x12mm thru axle<br>Rear: Bontrager Paradigm Comp 25, Tubeless Ready, 25mm rim width, Shimano 11-speed freehub, 142x12 thru axle
- Color
- Carbon Blue Smoke
Weight & Sizing
- Size
- 49cm / 52cm / 54cm / 56cm / 58cm / 61cm
Frame sizing
XS4'10"-5'2"
S5'2"-5'6"
M5'6"-5'10"
L5'10"-6'2"
XL6'2"-6'6"
M highlighted as most common resale size. Sourced from catalog metadata.
Geometry
- Stack
- Varies by size
- Reach
- Varies by size
- Wheelbase
- Varies by size
Industry standard. Sourced from catalog metadata.
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Wheel condition
Inspect rims, hubs, spokes, and bearing play; ask about the tire age and any prior wheel rebuilds.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Carbon inspection
Tap test the frame, fork, seatpost, and bars for cracks; verify no impact damage near dropouts.
Inspection
Brake hoses & cables
Check hydraulic line bleed, cable housing wear, and confirm rotors are within spec.