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2021 49cm SKU: BRD20979

Trek Domane AL 4 Disc Road Bike - 2021, 49cm

Recommended Rider Height: 5'1.4" - 5'3.8" Size Guide
Regular price

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Mechanic's Comments:
- Light wear and tear from cable rub, heel rub, chain, etc.
- Cosmetic blemish to frame at non drive axle.
- Does not include down tube frame cable plugs.
- Moderate scratches to crankset.

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TPC Guarantee

This bike passed a 141-point inspection and received a full pro-tune by our Master Mechanics in our Certified Pre-Owned process. CPO bikes are pristine and ready to ride!

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30-Day Hassle-Free Returns

Shop with confidence. Every bike is covered by our 30-day satisfaction guarantee. If this bike isn’t perfect for you, get in touch and we’ll help you find the right bike.

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RideFast Shipping

Bikes ship in our custom RideFast box, and assembly is incredibly simple. Most novice riders can assemble their bike in 5 minutes or less. The tools you need to assemble are also included.

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Year 2021
Brand Trek
Model Domane AL 4 Disc
Size 49cm
Frame Material Aluminum
Drivetrain Shimano, 2x10 spd
Weight 22 lbs 15 oz
Fork Domane AL, Carbon Fiber
Brakes Shimano Tiagra R4170, Disc Brakes - Hydraulic
Shifters Shimano Tiagra R4725, Mechanical
Front Derailleur Shimano Tiagra R4700
Rear Derailleur Shimano Tiagra R4700
Bottom Bracket Shell Threaded
Crankset Shimano Tiagra R4700, 50/34t, 170 mm
Cassette Shimano CS-HG500, 10spd, 11-32t
Chain SRAM
Handlebar Bontrager Comp VR-S Alloy, 38 cm
Headset FSA Integrated
Stem Bontrager Elite Alloy, 31.8 mm x 80mm, 7°
Seatpost Bontrager Comp Alloy, 27.2mm
Saddle Bontrager P3 Verse Comp Steel Rails
Front Axle Spacing 12x100mm (Thru-Axle)
Rear Axle Spacing 12x142mm (Thru-Axle)
Wheelset Bontrager Affinity Disc Aluminum TLR, Formula
Front Tire Bontrager R1 Hard-Case Lite, 700C x 32C
Rear Tire Bontrager R1 Hard-Case Lite, 700C x 32C
Tire Type Clincher
Tubeless Compatibility Wheels are tubeless compatible but ships with tubes installed
Charger Included N/A


Recommended Rider Height 5'1.4" - 5'3.8"
a. Effective Top Tube 516 mm
b. Seat Tube 440 mm
c. Seat Tube Angle 74.6°
d. Head Tube Angle 70.8°
e. Head Tube 123 mm
f. Stack 540 mm
g. Reach 368 mm
h. Standover Height 717 mm
i. Saddle Height Range N/A

“I love this company! My beautiful bike arrived promptly, was packed brilliantly, and tuned perfectly. It was exactly as described.”

— Kari K.


“In the past month, I purchased a road bike and MTB from TPC. Very happy with the price and condition of both bikes! I was riding the bikes 10 minutes after I received them.”

— David H.

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