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craigslist

Bicycles For Sale in Boulder, CO

  1. see also

    electric bikes

    kids bikes

    mountain bikes

    road bikes

  2. ROAD BIKE Vintage 1500 Trek 52cm for 5'0-5'5 ~NEW TIRES WRAP SEAT ETC!
    $150
    Metro Denver
  3. GIANT Boulder SE Hardtail Mountain Bike Excellent Condition Just Tuned
    $260
    Louisville
  4. TREK 1000C Road Bike Excellent Condition Fully Serviced
    $380
    Louisville
  5. Schwinn Le Tour (Pink/Magenta)
    $300
    Lafayette
  6. Vintage Schwinn Traveler - Japanese Steel - Great Condition
    $225
    Lafayette
  7. 2023 Norco Sight VLT C1 - Large
    $4,500
    Lafayette
  8. K2 ZED 1.0 Hardtail Mountain Bike Excellent Condition Fully Serviced
    $300
    Louisville
  9. JEEP Hardtail Mountain Bike Excellent Condition Ready to Ride
    $200
    Louisville
  10. TREK Superfly 240 Disc Hardtail Mountain Bike Excellent Cond. Tuned
    $460
    Louisville
  11. TREK Navigator 2.0 Hybrid/Comfort Bike Excellent Condition Just Tuned
    $300
    Louisville
  12. Cannondale 2009 Tandem
    $1,200
    Longmont
  13. Salsa Beargrease 2 Fatbike Small
    $1,600
    Louisville
  14. TREK 4300 Hardtail Mountain Bike Excellent Condition Fully Serviced
    $300
    Louisville
  15. Raleigh USA M-55 Hardtail Mountain Bike Excellent Condition Just Tuned
    $220
    Louisville
  16. Raleigh Venture 3.0 Hybrid / Comfort Bike Excellent Condition Tuned
    $300
    Louisville
  17. Novara Moxie 24 Kids Hardtail Mountain Bike Excellent Condition Tuned
    $240
    Louisville
  18. Bridgestone MB-5 Mountain Bike Excellent Condition Fully Serviced
    $300
    Louisville
  19. Giant Sedona ST Hybrid / Commuter Bike Great Condition Fully Serviced
    $200
    Louisville
  20. Corsa R-Fourteen Road Bike Excellent Condition Fully Serviced
    $280
    Louisville
  21. (2) Set of 1983 Schwinn Traveler Road Bikes Size 62cm/50cm NEW TIRES +
    $250
    Metro Denver
  22. Vintage MOTOR BICYCLE Ross Cruiser 21" for 5'10-6'4 Tall RAD BIKE!
    $200
    Metro Denver
  23. K2 Cheyenne Hardtail Mountain Bike Excellent Condition Fully Serviced
    $280
    Louisville
  24. TREK 720 MultiTrack Hybrid / Comfort Bike Excellent Condition Tuned
    $280
    Louisville
  25. Univega Via Carisma Hybrid / Comfort Bike Excellent Condition Tuned
    $260
    Louisville
  26. 2010 Trek 520
    $700
    North Boulder
  27. Trek Madone 4.7 Womens Bicycle
    $600
    N. Boulder
  28. Australian "Malvern Star Sprint 1.0" - 700c Road wheels/tires
    $100
    Longmont
  29. Large Specialized Stumpjumper Carbon 29er with carbon wheels
    $2,499
    Boulder
  30. Giant Revel W1 Disc Woman’s Hardtail Mountain Bike Excellent Tuned
    $380
    Louisville
  31. Hyper Spin Fusion 700C Hybrid / Road Bike Excellent Condition Tuned
    $180
    Louisville
  32. GT Outpost Trail Mountain Bike Excellent Condition Fully Serviced
    $240
    Louisville
  33. Giant Liv Alight 3 Hybrid Commuter Comfort Bicycle
    $200
    South Boulder
  34. REI Co-op Cycles ADV 3.1 Adventure Bicycle
    $600
    South Boulder
  35. Gary Fisher Tassajara GS Mountain Bike
    $250
    South Boulder
  36. Specialized Expedition Sport Mountain Bike
    $200
    South Boulder
  37. Schwinn Ranger Comfort Commuter 21 Speed Bicycle
    $200
    South Boulder
  38. Trek 2100 ZX Carbon Frame Road Bicycle
    $300
    South Boulder
  39. Cannondale Scalpel 29" Carbon 2 Lefty Mountain Bike
    $1,000
    South Boulder
  40. Giant Boulder Mountain Bike
    $180
    South Boulder
  41. Bianchi 1885 Reparto Corse Bicycle HAND MADE in ITALY
    $900
    South Boulder
  42. Cannondale F600 Comp Mountain Bicycle
    $250
    South Boulder
  43. Gary Fisher Cake 3 DLX Bicycle Full Suspension Hydraulic Disc Brakes
    $450
    South Boulder
  44. Trek 6500 Aluminum Frame Mountain Bike - Orange
    $200
    South Boulder
  45. Specialized HardRock FS Mountain Bike - Silver
    $200
    South Boulder
  46. GT Aggressor 2.0 Aluminum Frame Mountain Bike
    $200
    South Boulder
  47. Fuji Eddy Mountain Bicycle
    $150
    South Boulder
  48. Fuji Nevada Mountain Bike
    $150
    South Boulder
  49. GT Outpost All Terra Vintage Mountain Bike
    $200
    South Boulder
  50. GT Outpost Mountain Bicycle - Front Suspension
    $175
    South Boulder
  51. Giant Rincon Mountain Bicycle
    $200
    South Boulder
  52. Specialized Hardrock Punk Mountain Bike
    $200
    South Boulder
  53. Kona Cinder Cone Suspension Mountain Bicycle
    $250
    South Boulder
  54. Schwinn Mesa GS Aluminum Frame Suspension Mountain Bike bicycles
    $200
    South Boulder
  55. Felt FA SL Superlight Aluminum Road Bicycle
    $700
    South Boulder
  56. Specialized Hardrock Sport Mountain Bike
    $250
    South Boulder
  57. Castellano Fango Softail Aluminum Frame Mountain Bicycle
    $380
    South Boulder
  58. Schwinn Mesa GSX Aluminum Mountain Bike Front Suspension
    $250
    South Boulder
  59. Cannondale F300 Front Suspension Mountain Bike
    $275
    South Boulder
  60. Torker U District Urban City Single Speed Bicycle
    $120
    South Boulder
  61. Trek 7.3 FX Bicycle
    $250
    South Boulder
  62. Gary Fisher Mamba Front Suspension Mountain Bike
    $200
    South Boulder
  63. Trek 3900 WSD Mountain Bicycle
    $200
    South Boulder
  64. Specialized RockHopper Mountain Bicycle 🚵‍♂️
    $200
    South Boulder
  65. 1982 Schwinn Traveler **Large Frame**
    $1
    Lafayette
  66. 2014 BH G6 - Ultegra
    $1,750
    Berthoud
  67. KHS Montana Custom Hybrid/Comfort Bike Excellent Cond. Just Tuned
    $240
    Louisville
  68. SCHWINN Sierra GS Woman's Hybrid / Comfort Bike Excellent Cond. Tuned
    $220
    Louisville
  69. 2022 Santa Cruz Blur 4 CC Size - XL Black SRAM XO1 AXS RSV Wheels
    $3,500
    Boulder
  70. 2026 Cannondale Habit HT 1
    $1,200
    Arvada
  71. Mobo Cruiser Recumbent Tricycle – Excellent Condition
    $175
    Bohn Farm Neighborhood
  72. Classic Vintage Tandem Cruiser
    $400
  73. Raleigh Technium ATB-All Terrain Bike Excellent Cond. Fully Serviced
    $320
    Louisville
  74. Simcoe Signature Roadster — 52cm | Brooks Saddle | Nexus 7 | Ortlieb P
    $700
    Boulder
  75. TREK 1000 SL Road Bike Excellent Condition Fully Serviced
    $380
    Louisville
  76. TREK MT220 Kids Hardtail Mountain Bike Excellent Condition Tuned
    $260
    Louisville
  77. GT Bullet Kids Mountain Bike Excellent Condition Fully Serviced
    $180
    Louisville
  78. TREK Navigator 200 Hybrid/Comfort Bike Excellent Condition Just Tuned
    $300
    Louisville
  79. Gary Fisher Mamba Hardtail Mountain Bike Excellent Condition Tuned
    $240
    Louisville
  80. GIANT Cypress Hybrid / Comfort Bike Excellent Condition Fully Serviced
    $340
    Louisville
  81. TREK SOHO-S Single Speed Road Bike Excellent Condition
    $200
    Louisville
  82. HARO V-Series V1 Hardtail Mountain Bike Excellent Condition Just Tuned
    $280
    Louisville
  83. GIANT MTX 225 Kids Mountain Bike Excellent Condition Ready to Ride
    $240
    Louisville
  84. Pivot Mach 4 SL Team World Cup Mountain Bike XL
    $5,450
    Boulder
  85. Santa Cruz Tallboy 3 - Size XL (fits like a L)
    $1,000
    Boulder
  86. Quintana Roo TT Triathlon Race Bike - 55 cm
    $500
    SW Longmont
  87. TREK 3500 Hardtail Mountain Bike Excellent Condition Fully Serviced
    $280
    Louisville
  88. FUJI Newest 3.0 Road Bike Excellent Condition Fully Serviced
    $380
    Louisville
  89. Giant Roam 2 E-bike Electric Bicycle w/ Bafang Mid Drive Motor
    $1,500
    South Boulder
  90. REI Co-op Cycles REV 20 Kids Bike
    $100
    Boulder
  91. REI Co-op Cycles REV 16 Kids Bike
    $80
    Boulder
  92. Crupi 20” BMX Bicycle
    $165
    NW Longmont
  93. Yeti SB100 Mountian Bike
    $2,400
  94. Trek T200 Tandem: ~1996
    $750
    S. Boulder
  95. Specialized P-Fix 26 - Reynolds Steel
    $500
    Arvada
  96. Kids 20 inch wheel mountain bike
    $50
    Niwot
  97. Cool , 70’s. 3 speed cruiser
    $85
    Longmont
  98. Cleary Owl 20" Kids Bike - Lightweight Single-Speed
    $250
  99. GT Speed Series Team Bike
    $2,000
    Lafayette
  100. Large Specialized S-Works Stumpjumper 29 XX1 (excellent shape)
    $1,800
    Boulder
  101. Medium 2023 Trek Slash 9.8 AXS carbon 29er ($4k on bluebook)
    $2,750
    Boulder
  102. Excellent gravel bike - 'Brushed aluminum' finish
    $200
    Longmont
  103. Schwinn “Sid” automatic 3 speed cruiser
    $200
    Louisville
  104. Ceiling mount bike hoists - get them outta the way!
    $40
    Gunbarrel / North Boulder
  105. E bike 2025 Jaison Hunter Pro foldable Price Drop!!
    $700
    Longmont
  106. Bike, Raleigh M50 Mountain Trail- Chromoly Frame, Frame 16 in 24 speed
    $60
    Boulder
  107. Trek Skye S Girls Hybrid Fitness Bike, 24 Speed Excellent Condition
    $85
    Boulder
  108. 26 In, Bike Vector, Haro, 18-speeds 17.5" Frame, Excellent Condition
    $60
    Boulder
  109. Specialized M4 17" Mountain Bike
    $250
    boulder
  110. Phat Aloha Mahalo Cruiser
    $250
    boulder
  111. 2024 Ibis Ripley V4S – Medium – XX SL Transmission – I9 Hydra Carbon W
    $5,500
    Longmont
  112. radcity st 3 electric bike step thur
    $750
    boulder
  113. Santa Cruz Stigmata
    $2,200
  114. Trek Farley
    $850
    Longmont
  115. Trek Domane SL 7 Gen 4 Carbon Road bike size 58 shimano ultegra Di2
    $4,300
  116. Santa Cruz Tallboy (29" wheels)
    $899
    Boulder
  117. 2021 Yeti SB 130 T2, XL frame, great condition!
    $3,200
    Boulder
  118. Fuji Crosstown Bike
    $200
    Boulder
  119. Kuota Kaliper Triathlon and 404 Zipp Wheels Bike 2010-2012
    $1,150
    Boulder
  120. Trek 620
    $250
    Louisville
  121. Felt F65X Cyclocross Bike
    $590
    Superior
  122. Specialized Kids Bicycle - Jett 20" 6 gears
    $200
    Superior
  123. Lemond Poprad
    $350
    Boulder
  124. Trek FX6
    $700
    Lafayette
  125. COOP DRT 1.2 27.5” Small mountain bike
    $500
    Longmont
  126. Niner Air9 Hardtail Medium 29er
    $500
    Superior
  127. 1999 Lemond Zurich
    $1,050
    Boulder
  128. BikeE 1998 or later. 8 Gears, nice brakes and windshield!!!!!!
    $340
    Golden
  129. Mondraker Leader 16-inch *geared* kid's bike
    $400
    SW Boulder
  130. Fuji Road Bicycle with Carbon Frame - Excellent Condition!
    $300
    Lafayette (Public Rd/287)
  131. Isla Beinn 20" bike
    $250
    SW Boulder
  132. 2011 Trek Madone 4.7 58cm
    $975
    Boulder
  133. Tubus Vega Rack, Ortlieb Tubus QR Axle Adapter and Seatpost Clamp
    $112
    Longmont, CO
  134. iGo electric bicycle
    $750
    Boulder
  135. Fuji SST 2.0 LE Carbon Road Bike - Shimano Ultegra - Size Medium
    $650
    Boulder
  136. Soma Groove - Medium (26" + XT + RaceFace)
    $350
    Boulder / College
  137. Mondonico
    $1,600
  138. 2020 Evil the Wreckoning - full carbon L frame
    $1,700
    Boulder, CO
  139. Scott Foil 15 Aero carbon fiber road bike
    $1,800
    Lafayette
  140. Ibis Ripley LS
    $1,800
    North Boulder
  141. Specialized S-Works Epic World Cup 2024 medium
    $6,200
    boulder
  142. Adult size tricycle
    $40
    Lyons
  143. Titanium (3/2.5) Full Suspension.
    $2,000
    Boulder
  144. Cannondale Topstone lefty
    $3,500
    Boulder
  145. 2016 Dartmoor 26Player 26"
    $875
    Boulder
  146. 3 wheel bike
    $175
    Fort lupton
  147. PIM EBike refurbished
    $550
    boulder
  148. Panama Jack Cruiser
    $75
    lyons
  149. Schwin Treike
    $95
    lyons
  150. Women's Road Bike
    $90
    Erie
  151. 2021 Giant Stance
    $950
    Gunbarrel
  152. Young Adult Bike: Giant Revel, Small
    $200
    Superior
  153. Used Mongoose Road Bike
    $150
    North Boulder
  154. 2024 Yeti SB140 size L.
    $3,000
  155. Santa Cruz Jackal DJ Dirt Jumper
    $1,750
    Louisville
  156. Trek Farley 8 Fat Tire Bike
    $895
    Broomfield
  157. Giant ATX 760 Gravel / Commuter Bike
    $250
    Boulder
  158. Moots Smoothie Blend MTB - Size Medium (17")
    $2,500
    Louisville
  159. 2018 Breezer Downtown - Large
    $150
    Boulder
  160. 2018 Specialized Enduro Pro Carbon 29/6Fattie (S4 / Large)
    $2,300
    Longmont
  161. 2023 Liv Alight Aluminum Hybrid Bike-Size Medium
    $195
    Louisville
  162. Women's Bike: LeMond Nevada City 853 Reynolds
    $400
    Superior
  163. Late 1990s LeMond Maillot Jaune Reynolds 853 Steal Road Bike - 60cm -
    $800
  164. 2022 Trek Slash 9.8 XT size M/L Full Suspension
    $2,750
    Lyons
  165. 2021 Specialized Stumpjumper S-Works S3
    $5,000
    Boulder
  166. DelSol Tradewind DLX Cruiser
    $150
  167. Trek Hybrid 7.3 FX WSD
    $120
    Boulder
  168. 1976 Schwinn Stingray 3-speed
    $350
    Longmont
  169. Gazelle E-bike
    $1,000
    Boulder
  170. Kids Bike
    $15
  171. Tern GSD S10 LX - Premium Cargo E-Bike | <1000 miles | Excellent shape
    $3,450
    Boulder
  172. Trek Bike for sale
    $100
    Berthoud
  173. Moots Psychlo-X RSL 56
    $2,750
    basalt
  174. Novara Small 14" 700c
    $150
    Boulder
  175. Trek Wahoo 24” Inch Bike Bicycle Kid Kids Children Childrens
    $400
  176. 2020 Pivot Firebird 29 Carbon Med | Fox 36 / Float X2 (freshly service
    $4,200
    Boulder
  177. Specialized Stumpjumper FSR Elite
    $750
    Broomfield
  178. Schwinn Cruiser
    $170
    Nederland
  179. Schwinn Legacy
    $50
    Old town
  180. 2003 Specialized Allez Pro
    $400
    Fort Collins
  181. Trek Fuji - small frame
    $200
    Boulder
  182. Trek Madone SL 5.9 carbon road bike - 2007 54.5 cm
    $799
    Boulder