Trek

2021 Trek Madone SLR 9 eTap

2021 Trek Madone SLR 9 eTap

Value Guide market data · 2021 Trek Madone SLR 9 eTap

12-month trend

3%

Direction and magnitude, not judgment

vs. category average

— %

No category comparison available

Price over time - 2021 Trek Madone SLR 9 eTap

$11.0k$7.2k$3.4kMSRPYr 1Yr 2Yr 3Yr 4Yr 5

Values based on actual sales data. Enter your bike's specifics to get a precise valuation.

All Madone model years

2021 Madone SLR 9 eTap lineup

Overview

About this bike

2021 Trek Madone SLR 9 eTap value depends on condition, original build, frame material, service history, and current buyer demand.

Specifications

Frameset

Fork
Madone KVF full carbon, tapered carbon steerer, invisible cable routing, flat mount disc, carbon dropouts
Frame
800 Series OCLV Carbon, KVF (Kammtail Virtual Foil) tube shape, adjustable top tube IsoSpeed, invisible cable routing, 3S aero chain keeper, T47 BB, DuoTrap S compatible, flat mount disc

Drivetrain

Groupset
2021 Trek Madone SLR 9 eTap
Crankset
SRAM RED AXS Power Meter, 48/35, DUB spindle
Bottom Bracket
SRAM DUB, T47 threaded, internal bearing
Chain
SRAM RED D1, 12 speed
Front Derailleur
SRAM RED eTap AXS, braze-on
Rear Derailleur
SRAM RED eTap AXS, Orbit chain management
Cassette/Rear Cogs
SRAM RED XG-1290, 10-33, 12 speed
Chainrings
33T
Shifters
SRAM RED eTap AXS, 12 speed

Brakes

Brakes
SRAM Red eTap AXS hydraulic disc, flat mount

Cockpit

Saddle
Bontrager Aeolus Pro, carbon rails, 145mm width
Stem
Trek Madone aero, invisible cable routing, 7 degree
Handlebars
Trek Madone adjustable aero VR-CF, OCLV Carbon, invisible cable routing, 93mm reach, 123mm drop
Seat Post
Madone aero carbon internal seatmast cap, integrated light mount, 25mm offset
Tape/Grips
Bontrager Supertack Perf tape

Wheels & Tires

Tires
Bontrager R4 320 Handmade Clincher, Hard-Case Lite, 320 tpi, 700 x 25c
Axles
Front: 100 x 12mm thru axle<br>Rear: 142 x 12mm thru axle

Accessories

Rims/Wheels
Front: Bontrager Aeolus XXX 6, OCLV Carbon, Tubeless Ready, 21mm rim width, 60mm rim depth<br>Rear: Bontrager Aeolus XXX 6, OCLV Carbon, Tubeless Ready, 21mm rim width, 60mm rim depth, SRAM XD-R driver
Color
Matte Onyx Carbon / Navy Carbon Smoke/Blue / Navy Carbon Smoke/Viper Red

Weight & Sizing

Size
47cm / 50cm / 52cm / 54cm / 56cm / 58cm / 60cm / 62cm

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

Frame condition

Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.

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.

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