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craigslist

Bicycles For Sale in Boulder, CO

  1. see also

    electric bikes

    kids bikes

    mountain bikes

    road bikes

  2. 3 Brand New Walmart Huffy Mountain Bikes
    $200
    Boulder
  3. Bridgestone MB-5 Mountain Bike Excellent Condition Fully Serviced
    $300
    Louisville
  4. 2001 Schwinn Homegrown Comp 17"
    $575
    Table Mesa
  5. Specialized RockHopper Mountain Bicycle 🚵‍♂️
    $200
    South Boulder
  6. Giant ATX780 Front Suspension Mountain Bike
    $200
    South Boulder
  7. Gary Fisher Mamba Front Suspension Mountain Bike
    $200
    South Boulder
  8. Gary Fisher Napa Mointain Bike
    $250
    South Boulder
  9. GT Aggressor 3.0 Mountain Bike
    $150
    South Boulder
  10. Trek Alpha 4900 Mountain bike 22.5" frame
    $140
    Boulder
  11. Specialized Stumpjumper Expert mountain/Trail bike
    $860
    Boulder
  12. RoadMaster Mt. Fury Mountain Bike Great Condition Just Tuned
    $70
    Louisville
  13. 2024 Santa Cruz Tallboy XX AXS RSV – Brand New, Never Ridden
    $7,000
    Boulder
  14. Bike, Raleigh M50 Mountain Trail- Chromoly Frame, Frame 16 in 24 speed
    $55
    Boulder
  15. 2026 Santa Cruz Blur XX AXS Flight Attendant Reserve Carbon CC – Size Small
    $6,700
    Boulder
  16. Santa Cruz Highball XX AXS RSV
    $6,500
    Boulder
  17. BLUR XX AXS FA RSV - size small
    $7,000
    Boulder
  18. TREK SKYE SL Hardtail Mountain Bike Excellent Condition Fully Serviced
    $300
    Louisville
  19. TREK 4300 Hardtail Mountain Bike Excellent Condition Fully Serviced
    $300
    Louisville
  20. Giant Revel W1 Disc Woman’s Hardtail Mountain Bike Excellent Tuned
    $380
    Louisville
  21. Diamondback Lustre 1 21 Speed Front Suspension Mountain Bike
    $80
  22. Yeti 575 Long Travel MTB Medium for 5'6-5'11 ~ Awesome XTR RIDE!
    $475
    Metro Denver
  23. Raleigh USA M-55 Hardtail Mountain Bike Excellent Condition Just Tuned
    $220
    Louisville
  24. Pacific Quasar 21 Speed Mountain Bike
    $100
  25. Roadmaster Bicycle Type Mountain Bikes, Wheel Diameter 26"
    $60
    Boulder
  26. Diamondback Outlook Mountain Bike, Wheel Size 26 in
    $65
    Boulder
  27. fat tire ebike (rad rover plus 6)
    $1,100
    erie
  28. GIANT Boulder SE Hardtail Mountain Bike Excellent Condition Just Tuned
    $260
    Louisville
  29. Specialized Hotrock Hardtail Mountain Bike- Professionally Tuned Up
    $250
    Boulder
  30. Trek 4500 Women's Hardtail Mountain Bike - Professionally Tuned Up
    $250
    Boulder
  31. Raleigh Talus Mountain Bike (XS) Like New Condition Ready to Ride
    $240
    Louisville
  32. Raleigh Technium ATB-All Terrain Bike Excellent Cond. Fully Serviced
    $320
    Louisville
  33. GT Agressor Mountain Bicycle XXL Aluminum Frame
    $200
    South Boulder
  34. Gary Fisher Tassajara GS Mountain Bike
    $250
    South Boulder
  35. Gary Fisher Kaitai Aluminum Frame Front Suspension Mountain Bike
    $250
    South Boulder
  36. Cannondale Competition Series 3.0 SM900 Aluminum Frame Mountain Bike
    $400
    South Boulder
  37. Gary Fisher Joshua X1 Full Suspension Mountain Bike
    $300
    South Boulder
  38. Cannondale Scalpel 29" Carbon 2 Lefty Mountain Bike
    $1,000
    South Boulder
  39. Giant Boulder Mountain Bike
    $180
    South Boulder
  40. Kona NuNu Mountain Bike
    $200
    South Boulder
  41. Trek Fuel 90 Full Suspension Mountain Bike 🚲
    $350
    South Boulder
  42. Nishiki Bravo Mtn Bicycle
    $125
    South Boulder
  43. Cannondale F600 Comp Mountain Bicycle
    $250
    South Boulder
  44. Gary Fisher Cake 3 DLX Bicycle Full Suspension Hydraulic Disc Brakes
    $450
    South Boulder
  45. Specialized HardRock FS Mountain Bike - Silver
    $200
    South Boulder
  46. Trek 6500 Aluminum Frame Mountain Bike - Orange
    $200
    South Boulder
  47. Trek 6500 Aluminum Frame Mountain Bicycle - Blue
    $200
    South Boulder
  48. Fuji Nevada Mountain Bike
    $150
    South Boulder
  49. GT Aggressor 2.0 Aluminum Frame Mountain Bike
    $200
    South Boulder
  50. Fuji Eddy Mountain Bicycle
    $150
    South Boulder
  51. GT Outpost All Terra Vintage Mountain Bike
    $200
    South Boulder
  52. Giant Rincon Mountain Bicycle
    $200
    South Boulder
  53. GT Outpost Mountain Bicycle - Front Suspension
    $175
    South Boulder
  54. Kona Hoss Aluminum Frame Mountain Bike
    $250
    South Boulder
  55. Kona Cinder Cone Suspension Mountain Bicycle
    $250
    South Boulder
  56. GT Saddleback Mountain Bike - Front Suspension
    $125
    South Boulder
  57. Specialized Hardrock Punk Mountain Bike
    $200
    South Boulder
  58. Classic Schwinn s [ 9 five] .3 Aluminum Mountain Bike
    $175
    South Boulder
  59. Classic Diamondback Ascent Mountain Bicycle 🚵‍♂️
    $140
    South Boulder
  60. Schwinn Mesa GS Aluminum Frame Suspension Mountain Bike bicycles
    $200
    South Boulder
  61. Specialized Hardrock Sport Mountain Bike
    $250
    South Boulder
  62. Castellano Fango Softail Aluminum Frame Mountain Bicycle
    $380
    South Boulder
  63. Schwinn Mesa GSX Aluminum Mountain Bike Front Suspension
    $250
    South Boulder
  64. Cannondale F300 Front Suspension Mountain Bike
    $275
    South Boulder
  65. Trek 7.3 FX Bicycle
    $250
    South Boulder
  66. Specialized RockHopper Bicycle 🚲
    $200
    South Boulder
  67. Novara Arriba 21 Speed Front Suspension Mountain Bike
    $125
  68. Trek 830 Mountain Track Bike 19in 3x7 26x2.1
    $190
  69. TREK 3500 Hardtail Mountain Bike Excellent Condition Fully Serviced
    $280
    Louisville
  70. Mongoose Montana 21 Speed Front Suspension Mountain Bike
    $100
  71. Trek Mountain bike 19" frame
    $140
    Boulder
  72. Trek Stache "Bikepacking" 29+
    $800
    Longmont
  73. HARO V-Series V1 Hardtail Mountain Bike Excellent Condition Just Tuned
    $280
    Louisville
  74. GT Outpost Trail Mountain Bike Excellent Condition Fully Serviced
    $240
    Louisville
  75. K2 Cheyenne Hardtail Mountain Bike Excellent Condition Fully Serviced
    $280
    Louisville
  76. Specialized Turbo Levo SL 2 Comp Carbon Large-Brand New!!!
    $5,300
    Louisville
  77. Small Specialized Mountain Bike
    $250
  78. Pivot Mach 4 SL Team World Cup Mountain Bike XL
    $5,450
    Boulder
  79. JEEP Hardtail Mountain Bike Excellent Condition Ready to Ride
    $200
    Louisville
  80. 2026 Cannondale Habit HT 1
    $1,200
    Arvada
  81. Colorado-Made Carbon 29er, Guerilla Gravity / ENVE / X01 / FOX
    $2,700
    Boulder
  82. K2 ZED 1.0 Hardtail Mountain Bike Excellent Condition Fully Serviced
    $300
    Louisville
  83. Reeb SST Large
    $1,999
  84. Large Specialized Stumpjumper Carbon 29er with carbon wheels
    $2,499
    Boulder
  85. Kids' Extra Small Trek Mountain Bikes -26" Wheels - Pro Tuned Up
    $250
    Boulder
  86. Ancheer 26" Electric Mountain Bike MAX
    $60
    Boulder
  87. Schwinn Ranger 26” Mountain Bike - $180
    $180
    Boulder
  88. Trek Marlin 6 Gen 2 Mountain Bike — XS
    $575
    Boulder
  89. Marin Rift Zone Junior
    $1,500
    Boulder
  90. Extra Small Specialized Comp Kids Mountain Bike - 26" Wheels
    $250
    Boulder
  91. 2018 Specialized Enduro Pro Carbon 29/6Fattie (S4 / Large)
    $2,000
    Longmont
  92. CO-OP 1.1 DRT Mountain Bike For Sale!
    $400
    Boulder
  93. Yeti SB4.5 Carbon Large X01 Eagle Fox Factory
    $3,499
    Louisville
  94. Commencal Supreme DH Mullet Öhlins Excellent Condition
    $4,999
    Louisville
  95. Salsa Beargrease 2 Fatbike Small
    $1,600
    Louisville
  96. Moots Smoothie Blend MTB - Size Medium (17")
    $2,500
    Louisville
  97. Trek 4500
    $125
  98. 24” Specialized Mountain Bike Good Condition ($75 or best offer)
    $75
    Boulder
  99. 24” Gary Fisher Mountain Bike Good Condition ($75 or best offer)
    $75
    Boulder
  100. Trailcraft Pineridge 24" Kids Mountain Bike
    $1,500
    Boulder, CO
  101. Specialized Stumpjumper FSR Elite
    $650
    Broomfield
  102. 2024 Ibis Ripley V4S – Medium – XX SL Transmission – I9 Hydra Carbon W
    $4,500
    Longmont
  103. Gary Fisher Joshua X1
    $220
    Superior
  104. Custom Paselec GS9 Full-Suspension E-Bike -- Upgraded
    $1,250
    Boulder
  105. Trek 7700 FX
    $150
    Lafayette
  106. Cannondale super vsl 900
    $50
    Boulder
  107. 2022 Trek Slash 9.8 XT size M/L Full Suspension
    $2,750
    Lyons
  108. 2022 Santa Cruz Blur 4 CC Size - XL Black SRAM XO1 AXS RSV Wheels
    $3,500
    Boulder
  109. 2023 Norco Sight VLT C1 - Large
    $4,500
    Lafayette
  110. Trek Gary Fisher edition Advance
    $150
    Longmont
  111. 2022 Evil Offering MTB
    $1,500
  112. 2023 Trek Fuel Ex 7 Deore (sub 50 miles)
    $2,400
    Boulder
  113. 2022 Santa Cruz Blur 4 CC Size - XL Black SRAM XO1 AXS RSV Wheels
    $3,500
    Boulder
  114. Yeti SB100 Mountian Bike
    $2,100
  115. XL Ragley Bigwig Enduro Hardtail Mountain Bike
    $1,300
    Boulder
  116. Santa Cruz Tallboy (29" wheels)
    $899
    Boulder
  117. Niner Air9
    $1,000
    South Boulder
  118. 2021 Yeti SB 130 T2, XL frame, great condition!
    $3,200
    Boulder
  119. Surly Moonlander fat tire steel bike - 18 inch
    $590
    Nederland
  120. Diamond Back Mountain Bike - 17 inch frame
    $80
    Berthoud
  121. COOP DRT 1.2 27.5” Small mountain bike
    $500
    Longmont
  122. Giant Trance X2 2017
    $600
    Boulder
  123. Niner Air9 Hardtail Medium 29er
    $500
    Superior
  124. Specialized Stumpjumper Pro with S-Sorks upgrades. Medium S3
    $3,545
    Boulder
  125. Vintage Cannondale F500
    $325
    Boulder
  126. Specialized Enduro Mountain Bike S5
    $2,800
    Lyons
  127. Tair Ripper - Small
    $2,500
    Boulder
  128. Banshee Spitfire
    $1,250
    Boulder
  129. Titus Motolite
    $475
    Boulder
  130. Niner Jet RDO 29in mtn-bike
    $1,800
  131. Soma Groove - Medium (26" + XT + RaceFace)
    $350
    Boulder / College
  132. 2000 Specialized Stump Jumper M2
    $250
    Boulder
  133. 2020 Evil the Wreckoning - full carbon L frame
    $1,700
    Boulder, CO
  134. Specialized S-Works Epic World Cup 2024 medium
    $6,200
    boulder
  135. Scott Spark RC N1NO Limited Edition
    $9,000
    Boulder
  136. Titanium (3/2.5) Full Suspension.
    $2,000
    Boulder
  137. Niner ROS9 150mm hardtail mountain bike
    $700
  138. PNW Transition Relay 2025 Mullet
    $3,000
    Boulder
  139. Fuji Mountain Bike
    $50
    Erie
  140. Mountain Bike
    $150
    Broomfield
  141. Specialized rockhopper
    $75
  142. Young Adult Bike: Giant Revel, Small
    $200
    Superior
  143. Cannondale F300 Verso Mountain Bike XL frame (21.75")
    $225
  144. Diamondback Response XL
    $80
    Boulder
  145. Cannondale
    $180
  146. 2021 Specialized Stumpjumper S-Works S3
    $5,000
    Boulder