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craigslist

Bicycles For Sale in Boulder, CO

  1. see also

    electric bikes

    kids bikes

    mountain bikes

    road bikes

  2. New 2025 Trek Supercaliber SLR 9.8 Large Mountain Bike
    $4,995
    Boulder
  3. GIANT MTX 225 Kids Mountain Bike Good Condition Fully Serviced
    $160
    Louisville
  4. Gary Fisher Tassajara Mountain Bike (XS) Excellent Cond. Just Tuned
    $280
    Louisville
  5. Novara Moxie 24 Kids Hardtail Mountain Bike Excellent Condition Tuned
    $240
    Louisville
  6. TREK Superfly 240 Disc Hardtail Mountain Bike Excellent Cond. Tuned
    $460
    Louisville
  7. Bridgestone MB-5 Mountain Bike Excellent Condition Fully Serviced
    $300
    Louisville
  8. GT 2.0 Avalanche 24 sp medium 26 mtn bike new
    $425
    Arvada
  9. GIANT MTX 225 Kids Mountain Bike Excellent Condition Ready to Ride
    $240
    Louisville
  10. JEEP Hardtail Mountain Bike Excellent Condition Ready to Ride
    $200
    Louisville
  11. Transition PBJ Dirt Jumper – Large – Chris King / RockShox – $800
    $800
    Boulder - Gunbarrel
  12. Vintage Bridgestone MB - Deore XT
    $320
    Arvada
  13. RoadMaster Mt. Fury Mountain Bike Great Condition Just Tuned
    $70
    Louisville
  14. TREK MT220 Kids Hardtail Mountain Bike Excellent Condition Tuned
    $260
    Louisville
  15. Raleigh USA M-55 Hardtail Mountain Bike Excellent Condition Just Tuned
    $220
    Louisville
  16. Trek Rail E Mountain Bike - full suspension
    $3,000
    Broomfield
  17. Giant Escape Gravel Hybrid City Bike L 3x7 700x35c
    $300
  18. GT full suspension mountain bike, XS
    $500
    Boulder (Gunbarrel)
  19. Titus Racer X 29er. Titanium frame. Full suspension. 18”.
    $775
    Allenspark
  20. Salsa Fargo adventure bike Size small (16")
    $1,700
    Allenspark
  21. Specialized MYKA Disc Woman’s Mountain Bike Excellent Cond. Tuned
    $380
    Louisville
  22. Trek Skye S 13” / 26” Mountain Bike - Great Growing Kid / Tween Bike
    $220
    Longmont
  23. FUJI Nevada 5.0 Mountain Bike (XS) Excellent Condition Ready to Ride
    $240
    Louisville
  24. GT Bullet Kids Mountain Bike Excellent Condition Fully Serviced
    $180
    Louisville
  25. GT Outpost Trail Mountain Bike Excellent Condition Fully Serviced
    $240
    Louisville
  26. Yeti ARC T2 Turq Hardtail XC Carbon Mountain Bike XL
    $2,850
    Boulder
  27. 2026 Norco Revolver 130 near new C1 Gen4 size2
    $6,500
    Boulder
  28. 2016 Charge Cooker MTN Bike 29er
    $275
    South Boulder
  29. TREK SKYE SL Hardtail Mountain Bike Excellent Condition Fully Serviced
    $300
    Louisville
  30. TREK 3500 Hardtail Mountain Bike Excellent Condition Fully Serviced
    $280
    Louisville
  31. Hyper Spin Fusion 700C Hybrid / Road Bike Excellent Condition Tuned
    $180
    Louisville
  32. Raleigh Talus Mountain Bike (XS) Like New Condition Ready to Ride
    $240
    Louisville
  33. Salsa Beargrease 2 Fatbike Small
    $1,600
    Louisville
  34. 57cm (L) Vintage Trek Carbon U.S. Postal Service (USPS) team mt. bike
    $850
    Boulder, CO
  35. 2022 Trek FX3 Disc Gen 3 Medium
    $400
    Boulder
  36. Trek Dual Sport 2
    $500
  37. Diamondback Sorrento mountain bike
    $70
    Longmont
  38. Giant Explore E bike
    $1,700
    Niwot
  39. Vintage ladies 'Elswick' 3 speed bicycle.
    $250
    Boulder
  40. REI CTY 2.1 Commuter e-bike
    $895
    Boulder
  41. Hiland Y580 Mountain Bike
    $220
    Boulder
  42. Cannondale Quick 4 – Large – Hydraulic Disc – Commuter Equipped
    $475
    South Boulder
  43. Pink E-Bike
    $375
    Louisville
  44. Trek 3700 - 17" Frame (5' 5" - 5' 10")
    $100
    Louisville
  45. Trek 3900 Mountain Bike – Excellent Condition – Adventure Ready
    $200