loading
reading
writing
saving
searching
craigslist

Bicycles for sale in Boulder, CO

  1. Cr-Mo Balance brand bike. Free delivery.
    $121
    Greeley
  2. Giant Boulder 21 Speed Front Suspension Mountain Bike
    $150
  3. Set (2) Vintage 1991 Scott Limited 18"/21'5 Mid/Taller Adults! RAD!!
    $230
    Metro Denver
  4. Nice Fuji One.5 24 Speed Disc Brake Mountain Bike
    $250
  5. Raleigh Rowdy 16” kid’s bike
    $95
    Boulder
  6. 80s Vintage Bridgestone MB-3 Commuter~ 19" for 5'5-5'8 Tall ~TUNED UP!
    $60
    Metro Denver
  7. 15" BMC Four Stroke 3 MTB for 5'0-5'4 Tall TUNED ~ WORKS PERFECT!
    $400
    Metro Denver
  8. Liv Girl's Mountain Bike - 24"
    $100
    Boulder
  9. Giant 20" Youth Mountain Bike
    $100
    Boulder
  10. Trek Marlin 5
    $200
    Gunbarrel
  11. KHS Alite 150 Disc Hardtail Mountain Bike Excellent Condition Tuned
    $340
    Louisville
  12. Aventon Aventure 2 Fat Tire E-bike
    $1,800
    Broomfield
  13. GT Timberline FS 21 Speed Front Suspension Mountain Bike
    $150
  14. LIV Intrigue Advanced 2 - Medium (Brand new - never been ridden)
    $3,300
    Boulder 80303
  15. Trek Mountain Track City Commuter Bike
    $200
    Boulder
  16. Trek 4500 Women's Hardtail Mountain Bike
    $275
    Boulder
  17. Specialized Comp Kids Mountain Bike - 26" Wheels
    $250
    Boulder
  18. Small / Medium Specialized Mountain Bikes x 4 - Tuned Up
    $250
    Boulder
  19. Schwinn Mesa GS Aluminum Frame Mountain Bike
    $250
    South Boulder
  20. Cannondale F300 Front Suspension Mountain Bike
    $300
    South Boulder
  21. Specialized Hardrock FS Mountain Bike
    $275
    South Boulder
  22. Giant SE Boulder Mountain Bike
    $125
    South Boulder
  23. Trek 6500 Aluminum Frame Mountain Bike
    $300
    South Boulder
  24. Trek 6500 Aluminum Frame Mountain Bicycle
    $300
    South Boulder
  25. Schwinn Moab Mountain Bike with Rock Shox Front Suspension
    $200
    South Boulder
  26. Giant Rincon Mountain Bicycle
    $250
    South Boulder
  27. GT Timberline Front Suspension Mountain Bike
    $100
    South Boulder
  28. GT Outpost All Terra Vintage Mountain Bike
    $200
    South Boulder
  29. Trek Bicycle - Navigator 300
    $125
    Boulder
  30. Specialized FACT Stumpjumper Hardtail Size 17 inch
    $1,750
    Boulder
  31. Diamondback Lux Sport Womens Hardtail Mountain bike 17in. 26x1.95 3x8
    $225
    Louisville
  32. Vintage Diamond Back MTB Mountain Bike Black Yellow Ready2Ride! 17.5"
    $80
    Gunbarrel
  33. GT Saddleback 21 Speed Front Suspension Mountain Bike
    $150
  34. Kids Trek 24" Wheels MTB Mountain Precaliber for 4'3-5'0 Tall TUNED UP
    $160
    Metro Denver
  35. Specialized Rockhopper Mtn Bike
    $200
    Nederland
  36. Cool Old School Trek 7000 Aluminum Bike
    $275
    Longmont
  37. Vivi Electric Bike
    $450
    Boulder
  38. 2019 SPOT RYVE 115
    $2,800
    Boulder
  39. Specialized Myka Sport Disc 17" Womans
    $300
    boulder
  40. Specialized 160 status
    $2,200
  41. Santa Cruz Tallboy V5
    $3,600
    Boulder
  42. medium Intense Tracer carbon with UPGRADED CARBON WHEELS and cranks
    $1,750
    South Boulder
  43. DiamondBack Mountain bike 20" frame
    $100
    Boulder
  44. Trek 4300 Hardtail Mountain Bike Fork Suspension
    $275
    Boulder
  45. Mongoose Ledge 2.1 mountain bike
    $40
    East Bridgewater
  46. 2021 Niner RKT RDO, I9 Hydra/Nox carbon rims, Small
    $3,300
    Superior
  47. Specialized Epic World Cup Pro (Large)
    $7,500
    Superior
  48. NEW!!! 2023 Scott Ransom 910 Contessa Size Small Carbon 29er
    $3,200
    Golden
  49. Nishiki Mountainbike (for person 5'1" to 5'10" tall)
    $100
    Boulder
  50. Trek Alpha 4500 Mountain bike 18" frame
    $140
    Boulder
  51. Youth bike
    $60
    Boulder
  52. Specialized Stumpjumper Pro S3 (Medium)
    $4,999
    Boulder
  53. Trek Evo EX5 Mountain Bike
    $399
    Boulder
  54. 17 inch medium nishiki women's bike
    $150
    Erie
  55. LARGE Yeti SB150 TURQ Carbon XO1 Factory Build 29er
    $2,999
    South Boulder
  56. Mountain bikes
    $50
  57. XXL 2022 Specialized S-Works Stumpjumper EVO carbon 29er ($12K new)
    $5,250
    South Boulder
  58. Diamondback Sorrento SE
    $80
  59. Huffy Purple Lavender Girls Youth MTB Bike Ready2Ride! 24" Wheel Size
    $60
    Gunbarrel
  60. TREK 3500 Alpha Aluminum MTB Mountain Bike Matte Black Ready2Ride! 18"
    $260
    Gunbarrel
  61. Giant Trance 29 2
    $1,375
    Longmont
  62. Specialized Mtn Bike
    $350
    Boulder
  63. Yeti SB115 Mountain Bike Medium
    $4,200
    Longmont
  64. Specialized Camber Grom 24”-26”
    $900
    Niwot
  65. Caloi MTB Medium ready to ride
    $160
    Boulder
  66. Specialized Camber Grom #2 24-26”
    $900
    Niwot
  67. Very Nice Specialized Myka 15" Women's-specific Mountain Bike
    $120
    Boulder
  68. Trek 4300 women's bike
    $75
    Boulder
  69. Trek 850 Mountain Track (21" / Large)
    $400
    Boulder
  70. Giant XTC Advanced 3
    $2,600
    Gunbarrel
  71. Specialized StumpJumper Vintage Circa 2001 Made in U.S.A. Upgrades Orig Owner
    $285
    Boulder
  72. Mtn bike Giant avalanche and Specialized Hard Rock
    $40
    boulder colorado USA
  73. 90's Stumpjumper Team
    $350
    Boulder
  74. Specialized mountain bike
    $145
    BOULDER
  75. SPECIALIZED MOUNTAIN BIKE
    $150
    BOULDER
  76. New Felt Decree Trail Mountain Bike Small
    $2,995
    Boulder
  77. Vintage 1990s Gary Fisher Marlin size Medium
    $250
    Erie
  78. Kent Glendale 7 speed
    $130
    Longmont
  79. Kona Cinder Cone Suspension Mountain Bicycle
    $300
    South Boulder
  80. 26" Hyper Bike
    $30
  81. Vintage GIANT Rincom Red MTB Mountain Bike Ready2Ride! 21.5"
    $180
    Gunbarrel
  82. Giant XTC1 - Like new vintage mountain bike
    $700
  83. Niner Jet 9 RDO Carbon XC Mountain Bike Large
    $1,490
    Boulder
  84. Ibis Mojo HD4
    $2,900
    South Boulder
  85. Haro Thread One Dirt jumper
    $899
    Boulder
  86. Cannondale M400 CAD2 Mountain Bike USA Blue Retro
    $500
    Boulder
  87. 1992 Giant Rincon 16.5 Women’s Mountain Bike & Owner's Manual
    $195
    Longmont
  88. Surly moonlander - LG
    $850
    Downtown Boulder
  89. 2017 Pivot Switchblade
    $2,600
    Longmont
  90. Yeti SB 5.5 - Large
    $3,300
    boulder
  91. Specialized Myka Dual Suspension mountain bike, 26” Wheels, white blue
    $399
    Nederland or Rollinsville
  92. Schwinn Moab 2 Extra Small tuned ready to ride
    $180
    Boulder
  93. Santa Cruz Superlight 1 - Large
    $500
    Boulder
  94. 2018 Santa Cruz Bronson XO1
    $2,200
    Superior
  95. 2012 Trek Remedy 8 with Upgrades
    $800
    North Boulder
  96. Nukeproof Scout 275 Pro - Medium
    $1,900
    Longmont
  97. XS Yeti SB140
    $4,200
    Louisville
  98. Vintage 1991 Specalized Rock Hopper
    $50
    Nederland
  99. Mountain Bike Warrior
    $345
    Lafayette
  100. Brand New Bike
    $60
    Superior
  101. Diamondback Clutch 2 Mountain Bike (Medium) - Great Condition!
    $1,000
    Boulder
  102. Salsa Spearfish Carbon
    $1,600
    Nederland
  103. Gary Fisher HiFi Pro
    $500
    Boulder
  104. Specialized Stumpjumper small
    $225
    Boulder
  105. Ironhorse Warrior Pro Disc Full Susp Downhill Bike Like New Just Tuned
    $480
    Louisville
  106. 2023 Trek Supercaliber 9.9 XTR XL
    $4,450
    Boulder
  107. Transition Spur XO1 - 2022
    $3,500
    Boulder
  108. 2019 Intense Primer
    $1,700
    Boulder
  109. Women's 26" Mongoose Excursion 21speed
    $100
  110. Mountain Bike, helmet, lock, and portable inflator
    $50
    Boulder
  111. Specialized rock hopper XC FSR
    $180
    Boulder
  112. REDUED! - 2013 Kona Stinky Primo- Lightly Used
    $800
    Boulder, co
  113. REDUCED - Like New Carbon Fiber Cannondale Jekyl
    $1,200
    Boulder, co
  114. Marin Hawk Hill - Mens Mountain Bike
    $1,800
    Longmont
  115. Yeti SB 140 (barely Used)
    $2,250
    Lafayette
  116. 2018 YT Jeffsy 27 AL Comp - Excellently Maintained + Upgrades!
    $1,742
    Lafayette
  117. SUR-RON LIGHT BEE X
    $4,000
  118. Specialized Hardrock Mountain Bike
    $275
    South Boulder
  119. Gary Fisher Tassajara GS Mountain Bike
    $350
    South Boulder
  120. Trek Alpha 4300 Aluminum Mountain Bike
    $200
    South Boulder
  121. Specialized HardRock Mountain Bike
    $225
    South Boulder
  122. Old School Raleigh Technium Peak
    $175
    Erie
  123. Schwinn- 24 in Sidewinder
    $150
    Boulder
  124. 94/95 16" Kona Hot
    $350
    Longmont
  125. Gary Fisher Tassajara GS Mountain Bike
    $350
    South Boulder
  126. Trek Multitrack 7200 Aluminum Frame Mountain Bike
    $250
    South Boulder
  127. 2016 Devinci Troy Carbon 27.5
    $1,150
    Boulder
  128. Novara Moxie (REI) Kids Bike, 24" wheels
    $30
    Louisville
  129. Black Iron Horse Quantum 11. Limited free delivery.
    $213
    Greeley
  130. Trek 850 Steel Mt Bike 13.5 inches
    $140
    Lafayette
  131. K2 Cheyenne Sport Hardtail Mountain Bike Excellent Condition Tuned
    $300
    Louisville
  132. E bike
    $1,200
    Arvada
  133. 2019 Knolly Warden - Large
    $1,950
  134. GT Outpost Trail Mountain Bike Excellent Condition Just Tuned
    $240
    Louisville
  135. 2022 Specialized Stumpjumper Alloy S4
    $2,400
    Longmont
  136. LaPierre Zesty AM 327
    $1,400
    Broomfield
  137. SPECIALIZED MOUNTAIN BIKE
    $150
    BOULDER
  138. Whirlwind Genesis 26" Bike
    $50
  139. Custom Fat eBike
    $1,500
    Louisville
  140. 2019 Scott Scale 700 Pro Small
    $950
  141. 2021 salsa horsethief slx mountain bike size large and giant trance x2 26”
    $1
    Boulder
  142. Custom Scott Spark Jr. 24in Full Suspension Bike
    $450
    Gunbarrel
  143. Gary Fisher Joshua X1 Full Suspension Mountain Bike
    $500
    South Boulder
  144. Trek 7000 Aluminum Mountain Bike
    $200
    South Boulder
  145. yeti 575
    $500
    Best offer
  146. 2023 Specialized Epic Evo Large - Brand New!!!
    $3,200
    Louisville
  147. Raleigh Talus Mountain Bike Like New Condition Fully Serviced
    $260
    Louisville
  148. Raleigh Mojave 2.0 Mt. Bike 20"
    $80
    Boulder, Co
  149. Fuji Thrill Mt. Bike 17"
    $70
    Boulder, Co
  150. Women's (S) Cannondale Habit Carbon SE
    $2,300
    Boulder
  151. Specialized Demo 9 DH Mountain Bike
    $550
    longmont
  152. Pivot Mach 5.5
    $2,650
    Superior
  153. Giant Trance Advanced - Full Suspension carbon - size L - 27.5 wheels
    $2,000
    South Boulder
  154. TREK POWERFLY FS-5 E-MOUNTAIN BIKE
    $2,950
    Boulder
  155. Anthem X 29er 0 W
    $850
    Louisville
  156. Origin8 XL Single Speed Mtb
    $350
    Whittier
  157. TREK 930 SHX SingleTrack Hardtail Mountain Bike Like New Just Tuned
    $300
    Louisville
  158. Classic Schwinn S-30 Full Suspension Mtn Bike
    $125
    Longmont
  159. Trek Mountain Track 800 Mountain Bike
    $200
    South Boulder
  160. GT Aggressor 2.0 Aluminum Frame Mountain Bike
    $250
    South Boulder
  161. Specialized Hardrock
    $250
    Longmont
  162. 2017 Trek X-Caliber 9. 17.5
    $750
    Boulder
  163. Vintage Giant Rincon. Limited free delivery.
    $89
    Greeley
  164. Trek Skye SL Women's Medium
    $375
    ERIE
  165. Giant ATX Bicycle
    $175
    South Boulder
  166. SCHWINN Ranger Woman's Hardtail Mountain Bike Like New Condition
    $200
    Louisville
  167. Trek 3700
    $25
    Boulder
  168. Ghost Kato FS 7 Mountain Bike
    $950
    Boulder
  169. 2021 Banshee Rune V3 size Medium
    $2,400
    boulder
  170. 2022 Specialized Turbo Levo SL Expert Carbon, upgraded (AXS, I9)
    $6,000
    Erie
  171. Giant Talon 2 27.5
    $400
    Lafayette
  172. Spot Rocker 6-Star AXS size Small
    $3,999
  173. 2023 Ibis DV9 size Medium XX1 Eagle AXS, Enve, Industry Nine
    $4,999
  174. Radrover electric bike
    $1,050
    Boulder
  175. Gary fisher bike
    $150
    Boulder
  176. Custom Build Santa Cruz Nomad CC
    $2,200
    Erie
  177. Liv Lust Advanced 2 (2015) - Small
    $1,100
    Louisville
  178. JEEP Hardtail Mountain Bike Excellent Condition
    $200
    Louisville
  179. Ionic E3 Bird
    $850
    Nobo
  180. Diamond Back Sorrento / Steel USA
    $225
    Lafayette
  181. Womens Specialized Hardrock
    $100
    longmont
  182. Trek Skye SL Extra Small Mountain Bike
    $225
    Louisville
  183. 12-Speed 26” Men’s Mountain Bike
    $80
    north boulder
  184. Surly Instigator 2
    $750
    Boulder
  185. 2012 specialized demo 8 (price reduced)
    $700
    Boulder
  186. GIANT Boulder SE Hardtail Mountain Bike Excellent Condition
    $280
    Louisville
  187. Fuji Dynamite 24CP kid's mountain bike
    $100
    University Hill (Boulder)
  188. Specialized Stumpjumper
    $400
    Boulder
  189. Diamondback aluminum mountain bike 24"
    $140
    Louisville
  190. 24” Trek Roscoe
    $325
    Longmont
  191. S-works Enduro S4 (Large)
    $6,400
  192. Yeti Beti XS
    $5,000
    Longmont
  193. Cannondale Trail Tango 4 Women's Bike
    $350
    Souh Boulder
  194. Specialized Hard rock Sport. Limited free delivery.
    $159
    Greeley
  195. REDUCED PRICE - Medium - 2022 Pivot Switchblade - Like-New
    $5,500
  196. Cannondale Competition Series 3.0 SM900 Aluminum Frame Mountain Bike
    $500
    South Boulder
  197. Rockhopper Comp Metallic White/Satin Black Bikehand™ Bike Stand incl.
    $600
    Boulder
  198. XS - Specialized Rockhopper
    $260
    Boulder
  199. Genesis Incline 6061 aluminum bike
    $100
    Table Mesa and Broadway
  200. Dream Build Coil '22 Evil Offering L | X01 AXS | Revel Carbon Wheels
    $5,100
    Boulder
  201. Scott 24" RC Mountain Bike
    $400
    Boulder
  202. Specialized Ground Control FSR Full Suspension Mountain Bike
    $400
    South Boulder
  203. YT Decoy, MX
    $5,000
  204. Vintage Yeti full suspension mountain bike
    $200
  205. Carbon XC Racing MTB Large - 4k new
    $1,250
  206. Pivot Mach 429
    $700
    South Boulder
  207. SCHWINN MESA GS Hardtail Mountain Bike Excellent Condition just tuned
    $280
    Louisville
  208. Ready to Ride Vintage 1976 Trek Bike
    $20
    Lafayette
  209. Fuji Eddy Mountain Bicycle
    $200
    South Boulder
  210. Schwinn Mesa LE Mountain Bike
    $200
    South Boulder
  211. Diamondback DBR Apex Suspension Mountain Bike
    $400
    South Boulder
  212. Trek 6000 mountain bike small
    $100
    Boulder
  213. Raleigh M-400 Hardtail Mountain Bike Excellent Condition
    $300
    Louisville
  214. Kid Bike Huffy 20
    $50
    Boulder, CO
  215. Vintage Mountain Bike
    $75
    Longmont
  216. Scott Voltage 24" Mountain Bike
    $100
    Boulder
  217. Scott Scale Jr 24" Mountain Bike
    $100
    Boulder
  218. Trailcraft Pineridge 24
    $1,500
    Longmont
  219. Giant Cadex Carbon MTB 19 Inch 1990
    $300
    Lafayette
  220. 1983 Specialized Stumpjumper
    $750
    Boulder
  221. Pivot Switchblade
    $5,000
    South Boulder
  222. Full Suspension Mountain Bike Santa Cruz Bronson Carbon, Large Frame
    $2,350
    Boulder
  223. Pink Kids Mountain Bike
    $50
    Hygiene
  224. Trek 24 inch frame youth mountain bike
    $130
    Longmont
  225. Specialized 2021 Turbo Levo SL
    $4,500
    Boulder
  226. Guerrilla Gravity Smash Large
    $1,850
    Boulder
  227. Girls Trek MTB bike
    $85
    Boulder
  228. Girls Trek mountain bike
    $85
    Boulder
  229. Trek Marlin 7 2nd Gen
    $900
  230. 2022 Trek Marlin 5 Gen 2
    $400
    Longmont
  231. Fuji Nevada Mountain Bike
    $200
    South Boulder
  232. 2022 Marin El Roy Hardtail
    $950
  233. Specialized Mountain Bike
    $240
    Boulder
  234. 2022 Specialized S-works Enduros s4
    $4,500
    Boulder
  235. Specialized Stumpjumper FSR
    $600
    Boulder
  236. YT Capra 2019 Carbon
    $3,200
    Longmont
  237. 2021 Specialized Stumpjumper S-Works S3
    $5,500
    Boulder
  238. Cannondale Trail Tango 4 Women's Bike
    $350
    Souh Boulder
  239. Specialized Rockhopper Sport (kids)
    $350
    S. Boulder
  240. unknow
    $140
    longmont
  241. unknow
    $120
  242. TREK 4-Series (4300) Hardtail Mountain Bike Excellent Condition
    $300
    Louisville
  243. Vintage XC Racer - Turner Flux 26” Full Suspension Mountain Bike
    $1,100
    BOULDER
  244. Full Suspension Rocky Mountain Slayer 30 Mountain Bike
    $450
    Louisville
  245. 2023 stumpjumper expert S5/XL
    $3,000
    Boulder
  246. Jamis Helix A2 Mountain Bike
    $250
    Gunbarrel
  247. Niner Jet full XTR - Large Mountain Bike
    $2,200
    Boulder
  248. 2013 Yeti SB95 Full Suspension
    $700
    Boulder
  249. 14" XS Giant Boulder SE mountain bike
    $75
    Boulder
  250. Trek 7000 Hardtail Mountain Bike
    $275
    Longmont
  251. Schwinn Frontier Mountain Bike
    $125
    South Boulder
  252. GT Stomper
    $125
    Lafayette
  253. 29” I-9 w/ 2.6 🛞
    $600
    Boulder
  254. Specialized Hardrock Comp FS
    $300
    Boulder
  255. 2015 S Works Enduro 650b small bike for sale
    $1,650
    Boulder, CO
  256. KHS ZACA
    $275
  257. 24" Kids Mountain Bike: Cube Acid 240 SL
    $315
    boulder
  258. Hyper Spinner BMX bike
    $50
    Boulder
  259. KHS MTB 17.5 Inch
    $220
    Lafayette
  260. Raleigh M80 Mountain Bike 17 inch frame medium
    $175
    Lafayette
  261. Specialized Hardrock 15.5 inch/Shimano throughout
    $180
    Lafayette
  262. 2019 Knolly Warden - Large
    $2,000