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craigslist

Bicycles For Sale in Boulder, CO

  1. see also

    electric bikes

    kids bikes

    mountain bikes

    road bikes

  2. JEEP Hardtail Mountain Bike Excellent Condition Ready to Ride
    $200
    Louisville
  3. Bridgestone MB-5 Mountain Bike Excellent Condition Fully Serviced
    $300
    Louisville
  4. TREK 720 MultiTrack Hybrid / Comfort Bike Excellent Condition Tuned
    $280
    Louisville
  5. Univega Via Carisma Hybrid / Comfort Bike Excellent Condition Tuned
    $260
    Louisville
  6. Trek road bike gunmetal blue
    $270
  7. Panasonic Villager DX Hybrid / Comfort Bike Excellent Condition Tuned
    $200
    Louisville
  8. Immaculate BMC Teammachine SLR01 DISC ONE, 54 cm
    $2,100
    Boulder
  9. Trek 3500
    $150
    erie
  10. Giant Sedona ST Hybrid / Commuter Bike Great Condition Fully Serviced
    $200
    Louisville
  11. TREK MT 220, MT220 Kids Hardtail Mountain Bike Excellent Cond. Tuned
    $260
    Louisville
  12. E-Bike for Sale
    $900
    Boulder
  13. Surly Wednesday w/lots of upgrades
    $1,500
    Boulder
  14. Novara Moxie 24 Kids Hardtail Mountain Bike Excellent Condition Tuned
    $240
    Louisville
  15. TREK 3500 Hardtail Mountain Bike Excellent Condition Fully Serviced
    $280
    Louisville
  16. GIANT Boulder SE Hardtail Mountain Bike Excellent Condition Just Tuned
    $260
    Louisville
  17. Circa '76 Mizutani Super Seraph
    $650
    Longmont
  18. TREK SOHO-S Single Speed Road Bike Excellent Condition
    $200
    Louisville
  19. K2 ZED 1.0 Hardtail Mountain Bike Excellent Condition Fully Serviced
    $300
    Louisville
  20. TREK 7.2 FX Hybrid / Gravel Bike Excellent Condition Fully Serviced
    $380
    Louisville
  21. TREK 1000C Road Bike Excellent Condition Fully Serviced
    $480
    Louisville
  22. Raleigh USA M-55 Hardtail Mountain Bike Excellent Condition Just Tuned
    $220
    Louisville
  23. Kids 20 inch wheel mountain bike
    $50
    Niwot
  24. KHS Montana Custom Hybrid/Comfort Bike Excellent Cond. Just Tuned
    $240
    Louisville
  25. Raleigh Venture 3.0 Hybrid / Comfort Bike Excellent Condition Tuned
    $300
    Louisville
  26. Giant Revel W1 Disc Woman’s Hardtail Mountain Bike Excellent Tuned
    $380
    Louisville
  27. FUJI Newest 3.0 Road Bike Excellent Condition Fully Serviced
    $380
    Louisville
  28. Hyper Spin Fusion 700C Hybrid / Road Bike Excellent Condition Tuned
    $180
    Louisville
  29. Specialized Epic FSR - Size XL
    $250
    Arvada
  30. GT Bullet Kids Mountain Bike Excellent Condition Fully Serviced
    $180
    Louisville
  31. TREK Navigator 200 Hybrid/Comfort Bike Excellent Condition Just Tuned
    $300
    Louisville
  32. SCHWINN Sierra GS Woman's Hybrid / Comfort Bike Excellent Cond. Tuned
    $220
    Louisville
  33. Canyon Neuron CF 8
    $2,000
    Erie
  34. Gary Fisher Mamba Hardtail Mountain Bike Excellent Condition Tuned
    $240
    Louisville
  35. HARO V-Series V1 Hardtail Mountain Bike Excellent Condition Just Tuned
    $280
    Louisville
  36. TREK Navigator 2.0 Hybrid/Comfort Bike Excellent Condition Just Tuned
    $300
    Louisville
  37. RECUMBENT Burley Cantos 24 Speed TUNED UP RIDE READY!
    $260
    Metro Denver
  38. Vintage MOTOR BICYCLE Ross Cruiser 21" for 5'10-6'4 Tall RAD BIKE!
    $250
    Metro Denver
  39. Raleigh Technium ATB-All Terrain Bike Excellent Cond. Fully Serviced
    $320
    Louisville
  40. GIANT Cypress Hybrid / Comfort Bike Excellent Condition Fully Serviced
    $340
    Louisville
  41. TREK Superfly 240 Disc Hardtail Mountain Bike Excellent Cond. Tuned
    $460
    Louisville
  42. 2021 Yeti SB 130 T2, XL frame, great condition!
    $3,200
    Boulder
  43. Jamis Ventura 105 road bike 54cm with fiberglass wheels
    $800
    Broomfield
  44. Corsa R-Fourteen Road Bike Excellent Condition Fully Serviced
    $280
    Louisville
  45. K2 Cheyenne Hardtail Mountain Bike Excellent Condition Fully Serviced
    $280
    Louisville
  46. Trek Women's Neko 1 Mountain Bike
    $200
    Boulder
  47. Fatbike - REI DRT 4.1
    $450
  48. TREK 4300 Hardtail Mountain Bike Excellent Condition Fully Serviced
    $300
    Louisville
  49. TREK FX 7.4 WSD Woman's Hybrid/Gravel Bike Excellent Cond. Just Tuned
    $380
    Louisville
  50. GIANT MTX 225 Kids Mountain Bike Excellent Condition Ready to Ride
    $240
    Louisville
  51. 2009 Fuji Silhouette WSD 52cm Reynolds R4 carbon wheels
    $500
    Superior
  52. GT Outpost Trail Mountain Bike Excellent Condition Fully Serviced
    $240
    Louisville
  53. Gary Fisher Tassajara Aluminum Frame Mountain Bike
    $150
    South Boulder
  54. Trek 4300 Aluminum Frame Mountain Bicycle
    $150
    South Boulder
  55. Trek 2100 ZX Carbon Frame Road Bicycle
    $300
    South Boulder
  56. Cannondale Scalpel 29" Carbon 2 Lefty Mountain Bike
    $1,000
    South Boulder
  57. Giant Boulder Mountain Bike
    $180
    South Boulder
  58. Specialized Rockhopper Aluminum Frame Mountain Bike
    $180
    South Boulder
  59. Bianchi 1885 Reparto Corse Bicycle HAND MADE in ITALY
    $900
    South Boulder
  60. Cannondale F600 Comp Mountain Bicycle
    $250
    South Boulder
  61. Gary Fisher Cake 3 DLX Bicycle Full Suspension Hydraulic Disc Brakes
    $450
    South Boulder
  62. Specialized HardRock FS Mountain Bike - Silver
    $200
    South Boulder
  63. Trek 6500 Aluminum Frame Mountain Bike - Orange
    $200
    South Boulder
  64. GT Aggressor 2.0 Aluminum Frame Mountain Bike
    $200
    South Boulder
  65. Fuji Nevada Mountain Bike
    $150
    South Boulder
  66. Fuji Eddy Mountain Bicycle
    $150
    South Boulder
  67. GT Outpost Mountain Bicycle - Front Suspension
    $175
    South Boulder
  68. GT Outpost All Terra Vintage Mountain Bike
    $200
    South Boulder
  69. Giant Rincon Mountain Bicycle
    $200
    South Boulder
  70. Kona Cinder Cone Suspension Mountain Bicycle
    $250
    South Boulder
  71. Specialized Hardrock Punk Mountain Bike
    $200
    South Boulder
  72. Schwinn Mesa GS Aluminum Frame Suspension Mountain Bike bicycles
    $225
    South Boulder
  73. Specialized Hardrock Sport Mountain Bike
    $250
    South Boulder
  74. Felt FA SL Superlight Aluminum Road Bicycle
    $700
    South Boulder
  75. Castellano Fango Softail Aluminum Frame Mountain Bicycle
    $380
    South Boulder
  76. Schwinn Mesa GSX Aluminum Mountain Bike Front Suspension
    $250
    South Boulder
  77. Cannondale F300 Front Suspension Mountain Bike
    $275
    South Boulder
  78. Trek 7.3 FX Bicycle
    $250
    South Boulder
  79. Torker U District Urban City Single Speed Bicycle
    $120
    South Boulder
  80. Gary Fisher Mamba Front Suspension Mountain Bike
    $200
    South Boulder
  81. Trek 3900 WSD Mountain Bicycle
    $200
    South Boulder
  82. Specialized RockHopper Mountain Bicycle 🚵‍♂️
    $200
    South Boulder
  83. Gary Fisher Mamba Front Suspension Mountain Bike
    $200
    South Boulder
  84. Specialized XC FSR Aluminum Full Suspension Mountain Bike
    $300
    South Boulder
  85. Specialized Pitch 27.5 Mountain Bike
    $350
    South Boulder
  86. Specialized Expedition Sport Mountain Bike
    $200
    South Boulder
  87. Schwinn Ranger Comfort Commuter 21 Speed Bicycle
    $200
    South Boulder
  88. 2020 Benno Boost E-Bike w cargo rack— Bosch Powerpack 400
    $2,200
    Louisville
  89. Specialized Fat Boy, 2019 - Excellent Condition
    $1,000
    Longmont
  90. Bianchi Volpe
    $550
    Longmont
  91. Rarely available in U.S!
    $275
    Boulder
  92. 2011 Trek Madone 4.7 58cm
    $1,150
    Boulder
  93. E bike 2025 Jaison Hunter Pro foldable
    $900
    Longmont
  94. GIANT MTX 250 Kids Bike
    $200
    Louisville
  95. Quintana Roo TT Triathlon Race Bike - 55 cm
    $500
    SW Longmont
  96. Australian "Malvern Star Sprint 1.0" - 700c Road wheels/tires
    $100
    Longmont
  97. Girls Schwinn pedal bike with 12 inch wheels
    $30
    Boulder Gunbarrel
  98. Mountain Bike
    $1,500
    Erie
  99. Specialized FSR Ground Control Mountain Bike
    $200
    Erie
  100. 2022 Trek Slash 9.8 XT size M/L Full Suspension
    $2,750
    Lyons
  101. Trek 620
    $250
    Louisville
  102. Custom 52 cm Mosaic XS-1 singlespeed cyclocross bike
    $2,200
    Lafayette
  103. Kids Trek Roscoe 24" Mountain Bike w/ Upgraded Brakes and Derailleur
    $280
    N. Boulder
  104. 2018 Niner RLT9 Steel 4-Star Ultegra gravel bike 56cm
    $1,575
    Boulder
  105. Felt F1 Road Bike
    $750
    Boulder
  106. Salsa Mamasita Hardtail MTB
    $875
    Boulder
  107. Trek Boone Carbon Gravel / Cyclocross bike 54cm / Medium
    $2,995
    Boulder
  108. Medium 2023 Trek Slash 9.8 AXS carbon 29er ($4k on bluebook)
    $2,999
    Boulder
  109. Large Specialized S-Works Stumpjumper 29 XX1 (excellent shape)
    $1,900
    Boulder
  110. 2023 Canyon Grizl CF - Medium (56) - Shimano GRX Di2 - Carbon Wheels
    $3,355
    Boulder
  111. 2022 Canyon Ultimate CF SLX. 17.5lbs
    $4,255
    Boulder
  112. Specialized Turbo Como 4.0 eBike Size M w/Hitch Rack
    $2,800
    Longmont
  113. REI Co-op Cycles REV 16 Kids Bike
    $120
    Boulder
  114. REI Co-op Cycles REV 20 Kids Bike
    $150
    Boulder
  115. 2021 Specialized Tarmac SL7 Expert 54cm
    $3,500
    Boulder
  116. 2021 Factor O2 VAM Road Bike 49 cm
    $2,700
    Superior
  117. Schwinn “Sid” automatic 3 speed cruiser
    $200
    Louisville
  118. Yeti SB115
    $2,900
    Boulder
  119. Titanium 2003 Litespeed Ghisallo Road Bicycle
    $1,800
    Longmont, CO
  120. 2016 Dartmoor 26Player 26"
    $875
    Boulder
  121. Specialized Expedition
    $50
    Longmont
  122. Giant Pre Strider Bike
    $100
    Boulder
  123. Cannondale SuperSix (54) Carbon + Ultegra
    $525
    Boulder / College
  124. Ibis Ripley v4 XL
    $2,600
  125. Handmade Bilinkey Tandem – Great Condition!
    $800
    boulder
  126. Salsa Mukluk Carbon Fat Bike (M) - XO Eagle Upgrades - Barely Ridden
    $1,600
    Arvada
  127. Dirt Jumper
    $1,000
    University Hill
  128. TREK 1000 SL Road Bike Excellent Condition Fully Serviced
    $380
    Louisville
  129. Kent Glendale 7 speed
    $145
    Longmont
  130. Crupi 20” BMX Bicycle
    $200
    NW Longmont
  131. Size large 2023 Specialized Sworks Epic 21.4 pounds as shown.
    $6,500
    Boulder
  132. Co-op Cycles (REI) - DRT 2.1 Mountain Bike - 27.5
    $850
    gunbarrel estates
  133. Lauf True Grit XL
    $1,900
    Lafayette
  134. Serotta CST Titanium Gravel Bike
    $1,500
    Boulder
  135. BikeE 1998 or later. 8 Gears, nice brakes and windshield!!!!!!
    $370
    Golden
  136. Mondonico
    $1,600
  137. Trek Lemond Tourlamet
    $325
    Boulder
  138. Schwinn commuter -works beautifully
    $275
    Boulder
  139. Men’s Trek 7100 Hybrid Bicycle -Medium
    $100
    Boulder
  140. Women’s Giant Cypress Hybrid Bike -Medium Frame
    $110
    Boulder
  141. Carbon Road Bike Ultegra w/ disc brakes
    $1,250
    S Boulder
  142. Banshee Prime v3.2 XL frame + Cane Creek Tigon Coil
    $1,300
  143. 2023 Norco Sight VLT C1 - Large
    $4,500
    Lafayette
  144. COOP DRT 1.2 27.5” Small mountain bike
    $650
    Longmont
  145. 2014 BH G6 - Ultegra
    $2,500
    Berthoud
  146. Vintage Schwinn Traveler - Japanese Steel - Great Condition
    $225
    Lafayette
  147. Schwinn Le Tour (Pink/Magenta)
    $300
    Lafayette
  148. Scott plasma Cr1 triathlon bike medium ultegra with zipp 808 rear and 404 wheel
    $950
    Boulder
  149. Orange Priority 24" Bike (Ages 7 - 13)
    $200
    Louisville
  150. Blue Priority 24" Bike (Ages 7 - 13)
    $200
    Louisville
  151. Specialized Enduro Expert S3 Medium SRAM XO Fox Cushcore
    $3,000
  152. Tubus Vega Rack, Ortlieb Tubus QR Axle Adapter and Seatpost Clamp
    $145
    Longmont, CO
  153. Waterford Cycles 1200 - Hand Built 10sp Road Bike - 61.5cm - Excellent
    $950
    Boulder
  154. Cyclocross bike
    $650
    nederland
  155. 2020 Evil the Wreckoning - full carbon L frame
    $1,900
    Boulder, CO
  156. Trek Madone SL Gen 8 (2026) Sram Force AXS build, Size M/L
    $4,500
  157. Bike shoes
    $60
    Boulder
  158. JAMIS KOMODO 24in Mountain Bike - Kids
    $180
    boulder
  159. Trek Farley 8 Fat Tire Bike
    $895
    Broomfield
  160. Niner Air9 Hardtail Medium 29er
    $500
    Superior
  161. Rattan Compass E-Bike
    $500
    Longmont
  162. Evelo Compass Electric Trike, Class 2, Low Miles!
    $1,900
    Longmont
  163. Vintage litespeed Ultimate Titanium Road Bike, Campagnolo Record
    $1,250
    Boulder
  164. Moots Smoothie Blend MTB - Size Medium (17")
    $2,500
    Louisville
  165. 2014 Cervélo S5 road bike
    $2,750
    Boulder
  166. Pivot Mach 4 SL Team World Cup Mountain Bike XL
    $5,795
    Boulder
  167. Cannondale cy Moterra Neo
    $2,900
    Boulder
  168. 2025 Trek Madone SLR Carbon Road Bike Large
    $6,750
    Boulder
  169. Specialized rock hopper
    $300
  170. Raleigh Rush Hour fixie. 22"
    $129
    Greeley
  171. Univega Modo Vivere. 50cm. Campy and Columbus.
    $249
    Greeley
  172. Specialized Allez Epic Carbon. Limited free delivery.
    $375
    Greeley
  173. Bianchi Brava road bike. 20.5". limited free delivery.
    $175
    Greeley
  174. Canyon Ultimate CF SL Disc 8.0 Ultegra Di2 - (Boulder)
    $2,500
    Boulder
  175. Specialized 2020 Turbo Como 5.0 Electric Bike eBike - Large
    $1,600
    Superior
  176. Yeti SB115 T2 Turq - Large
    $3,950
    Boulder
  177. Moots Psychlo-X RSL 56
    $2,750
    basalt
  178. Cannondale 24 speed vintage Commuter Gravel Bike
    $80
    North Boulder
  179. Velocity orange
    $2,000
    Boulder
  180. E bike in excellent condition
    $600
    Waynesboro
  181. Schwinn Cruiser
    $170
    Nederland
  182. Mountain Bike (Marin Rift Zone 2 XL)
    $1,400