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craigslist

Bicycles For Sale By Owner in Boulder, CO

  1. see also

    electric bikes

    kids bikes

    mountain bikes

    road bikes

  2. Pacific Quasar 21 Speed Mountain Bike
    $125
  3. Schwinn Sierra 21 Speed Front Suspension Hybrid
    $125
  4. New! Big Shot SINGLE SPEED Size 52cm for 5'3-5'7 Tall ~ NEW BUILD!
    $200
    Metro Denver
  5. 1996 Trek Y22 Carbon Fiber MTB 19" for 5'8-6'0 ~ Awesome Vintage RIDE!
    $330
    Metro Denver
  6. Rare 1970s Schwinn Red Skipper Kids 18" Wheel in Collectors Shape!
    $70
    Metro Denver
  7. YETI Gravel Road Tour Commuter Ride ARC 21" for 5'9-6'1 ~ALL TUNED UP!
    $550
    Metro Denver
  8. PINK! Big Shot SINGLE SPEED FIXIE 60cm for 6'-6'6 NEW RECENT BUILD UP!
    $200
    Metro Denver
  9. Trek Domane SL 7 Gen 4 Carbon Road bike size 58 shimano ultegra Di2
    $4,300
  10. Tandem Classic Vintage Cruiser
    $500
  11. Bikes
    $100
    Longmont
  12. Bridgestone MB-5 Mountain Bike Excellent Condition Fully Serviced
    $300
    Louisville
  13. Giant Sedona ST Hybrid / Commuter Bike Great Condition Fully Serviced
    $200
    Louisville
  14. GT Outpost Trail Mountain Bike Excellent Condition Fully Serviced
    $240
    Louisville
  15. Corsa R-Fourteen Road Bike Excellent Condition Fully Serviced
    $280
    Louisville
  16. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    Fork, Bottom bracket b $279
  17. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    Now $549 NEWPart out!, Frameset $279!!!
  18. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    Now $499!!! NEWPart out!, Frameset $279!!!
  19. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    Fork, Bottom bracket b $279
  20. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    New: Part out Frame fork BB stem H-bar
  21. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    New: Part Out $299!!! Frame , Fork, Aurora Alameda @ I225
  22. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    New: Part Out $299!! Frame , Fork, Aurora Alameda @ I225
  23. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    Part out Frame Fork BB Stem Han $299
  24. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    Frame,Fork, Stem Han $299!!
  25. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    Part out: Frame, Fork bottom Bracket Stem Handlebars $299!!!
  26. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    Part out, Frame Set $299!!!
  27. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    New! Part out Frame , Fork BB Stem Handlebars $269!!!!
  28. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    New Part out Frame and Fork $259!!! Aurora Alameda @ I225
  29. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    Part out, Frame, fork BB stem bars
  30. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    Now $499!!! NEWPart out!, Frameset $279!!!
  31. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    Part out, Frame Set $299!!!
  32. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    Now $499!!! Aurora Alameda @ I225
  33. Vintage Trek 2300 Bro Carbon Road Bike with Shimano Tri Color 600!
    $598
    Now $499!!! NEWPart out!, Frameset $279!!!
  34. Vintage Schwinn Road Bike
    $100
    SW Longmont
  35. Specialized Rockhopper comp
    $260
    Boulder
  36. Specialized Stump Jumper Classic
    $260
    Boulder
  37. Kona Lava Dome Steel Hard Tail 16 inch
    $180
    Boulder
  38. Trek 8000 series Aluminum. 17 inch
    $180
    Boulder
  39. RoadMaster Mt. Fury Mountain Bike Great Condition Just Tuned
    $70
    Louisville
  40. Diamondback Vital 2 Woman's Hybrid / Comfort Bike Like New Just Tuned
    $280
    Louisville
  41. TREK SOHO-S Single Speed Road Bike Excellent Condition
    $200
    Louisville
  42. GIANT MTX 225 Kids Mountain Bike Excellent Condition Ready to Ride
    $240
    Louisville
  43. HARO V-Series V1 Hardtail Mountain Bike Excellent Condition Just Tuned
    $280
    Louisville
  44. Kids 20 inch wheel mountain bike
    $50
    Niwot
  45. Obed GVR Large Carbon Gravel Bike
    $2,495
    Boulder
  46. Chariot bike trailer
    $50
  47. Intense 951 XC Mountain Bike – Full Carbon, Size Medium
    $3,000
  48. Extra Small Specialized Comp Kids Mountain Bike - 26" Wheels
    $250
    Boulder
  49. Women's Nishiki Simple 7 Speed Commuter With Rack - Tuned Up
    $200
    Boulder
  50. Kids' Extra Small Specialized Mountain Bikes - 26" Wheels-Tuned Up
    $250
    Boulder
  51. Kids Specialized Hotrock (Blue) Mountain Bike - 24" Wheels
    $225
    Boulder
  52. Trek 3500 Mountain Bike
    $250
    North Boulder
  53. Trek Mountain Track City Commuter Bike -Professionally Tuned Up
    $200
    Boulder
  54. Trek 820 Hybrid Commuter Bike - Professionally Tuned Up
    $225
    Boulder
  55. Stages SB20 smart bike
    $1,200
    Boulder (Lake Valley)
  56. Santa Cruz Tallboy (29" wheels)
    $899
    Boulder
  57. GIANT Simple Seven Woman's Cruiser Bike Like New Condition Just Tuned
    $200
    Louisville
  58. TREK 3500 Hardtail Mountain Bike Excellent Condition Fully Serviced
    $280
    Louisville
  59. TREK Navigator 200 Hybrid / Comfort Bike Great Condition Just Tuned
    $260
    Louisville
  60. DiamondBack Wildwood Hybrid/Commuter Bike Great Condition Just Tuned
    $200
    Louisville
  61. Gary Fisher Joshua X1
    $220
    Superior
  62. Kid's Bike 16"
    $20
    Superior
  63. FELT IA FRD
    $4,500
    Dillon
  64. Schwinn Admiral 7 Speed Cruiser
    $125
  65. Marin San Rafael City Series 24 Speed Hybrid
    $150
  66. Pinarello kids road 24
    $250
    Boulder
  67. Bike Project - Janic Custom Steel Frame by Steve Dorris
    $150
    Longmont
  68. Mongoose Montana 21 Speed Front Suspension Mountain Bike
    $100
  69. fat tire ebike (rad rover plus 6)
    $1,100
    erie
  70. Northwoods Pomona 7 Speed Dual Suspension Hybrid
    $125
  71. Schwinn Le Tour 10 Speed Tall Frame Road Bike
    $125
  72. Niner Air9
    $1,000
    South Boulder
  73. 2021 Yeti SB 130 T2, XL frame, great condition!
    $3,200
    Boulder
  74. Surly Moonlander fat tire steel bike - 18 inch
    $590
    Nederland
  75. GIANT Boulder SE Hardtail Mountain Bike Excellent Condition Just Tuned
    $260
    Louisville
  76. JEEP Hardtail Mountain Bike Excellent Condition Ready to Ride
    $200
    Louisville
  77. Scott Addict Gravel bike 58cm like new
    $3,000
    Boulder
  78. Kids Cannondale Trail 24
    $500
    Louisville
  79. Ladies Trek Allant
    $400
    Louisville
  80. 2025 Pivot Shuttle LT (Pro XO Eagle Build; E-Mountain Bike)
    $10,495
    Longmont
  81. Fuji Crosstown Bike
    $200
    Boulder
  82. 2005 Raleigh prestige Carbon fiber race road bike 55cm
    $300
    Boulder
  83. Schwinn Le Tour GS race road bike
    $200
    Boulder
  84. Novara Flirt Step-Thru Cruiser Cream Women's Bike
    $199
    Lafayette
  85. Specialized P-Fix 26 - Reynolds Steel
    $500
    Arvada
  86. TREK Navigator 200 Hybrid/Comfort Bike Excellent Condition Just Tuned
    $300
    Louisville
  87. TREK 1000 SL Road Bike Excellent Condition Fully Serviced
    $380
    Louisville
  88. TREK 1000C Road Bike Excellent Condition Fully Serviced
    $380
    Louisville
  89. Diamondback Lustre 1 21 Speed Front Suspension Mountain Bike
    $80
  90. Mongoose Sahara 21 Speed Front Suspension Mountain Bike
    $100
  91. 2010 Trek 520
    $700
    North Boulder
  92. Trek Madone 4.7 Womens Bicycle
    $500
    N. Boulder
  93. HIBOY P6 electric mountain bike
    $1,000
    Lafayette
  94. TREK 4300 Hardtail Mountain Bike Excellent Condition Fully Serviced
    $300
    Louisville
  95. TREK Superfly 240 Disc Hardtail Mountain Bike Excellent Cond. Tuned
    $460
    Louisville
  96. Giant Defy Advanced 3 large
    $395
  97. Specialized M4 17" Mountain Bike
    $250
    boulder
  98. Phat Aloha Mahalo Cruiser
    $250
    boulder
  99. Pivot Mach 4 SL Team World Cup Mountain Bike XL
    $5,450
    Boulder
  100. Gary Fisher Mamba Hardtail Mountain Bike Excellent Condition Tuned
    $240
    Louisville
  101. GIANT Cypress Hybrid / Comfort Bike Excellent Condition Fully Serviced
    $340
    Louisville
  102. TREK Navigator 2.0 Hybrid/Comfort Bike Excellent Condition Just Tuned
    $300
    Louisville
  103. Kona ultralight Steel 16 1/2 inch frame
    $180
  104. Stumpjumper 18 inch vintage Aluminum
    $260
  105. Lemond Tete de course Carbon 58cm.
    $200
  106. Giant Carbon Hybrid 19inch
    $180
  107. Trek 8000 Series Aluminum Deore XT 17 inch
    $180
  108. Shimano Rotors / New with hardware 180
    $25
    Lafayette
  109. Specialized Rockhopper Comp
    $260
  110. 1960's Schwinn Cruiser Bike
    $100
    N. Boulder
  111. Schwinn spin bike
    $20
    Erie
  112. K2 Cheyenne Hardtail Mountain Bike Excellent Condition Fully Serviced
    $280
    Louisville
  113. FUJI Newest 3.0 Road Bike Excellent Condition Fully Serviced
    $380
    Louisville
  114. Univega Via Carisma Hybrid / Comfort Bike Excellent Condition Tuned
    $260
    Louisville
  115. TREK 720 MultiTrack Hybrid / Comfort Bike Excellent Condition Tuned
    $280
    Louisville
  116. Women's Specialized Hybrid - Professionally Tuned Up
    $250
    Boulder
  117. Kids Scott Orange Mountain Bike - 24" Wheels - Mint Condition
    $225
    Boulder
  118. Trek 3200 - Excellent Condition
    $250
    Boulder
  119. Schwinn Moab 24 Speed Mountain Bike- Professionally Tuned Up
    $250
    Boulder
  120. Trek 4500 Women's Hardtail Mountain Bike - Professionally Tuned Up
    $250
    Boulder
  121. Specialized Hotrock Hardtail Mountain Bike- Professionally Tuned Up
    $250
    Boulder
  122. Miyata Hybrid Bicycle - Professionally Tuned Up
    $250
    Boulder
  123. Extra Small Trek 8000 Mountain Bike - 26" Wheels- Pro Tuned Up
    $250
    Boulder
  124. Diamondback 27.5” Mountain Bike
    $60
    Lafayette
  125. Kuota Kaliper Triathlon and 404 Zipp Wheels Bike 2010-2012
    $1,150
    Boulder
  126. Bianchi hybrid bike 22" frame for tall person
    $120
    Boulder
  127. Schwinn Crisscross bike
    $100
    Boulder
  128. Trek 4.7 Domane OCLV Carbon 400 Series Road Bike
    $900
  129. Trek 830 Mountain Track Bike 19in 3x7 26x2.1
    $190
  130. Giant Revel W1 Disc Woman’s Hardtail Mountain Bike Excellent Tuned
    $380
    Louisville
  131. GIANT MTX 225 Kids Mountain Bike Good Condition Fully Serviced
    $160
    Louisville
  132. Novara Moxie 24 Kids Hardtail Mountain Bike Excellent Condition Tuned
    $240
    Louisville
  133. Raleigh Venture 3.0 Hybrid / Comfort Bike Excellent Condition Tuned
    $300
    Louisville
  134. 2022 Specialized Roubaix Expert
    $3,400
    Erie
  135. Trek Alpha 4900 Mountain bike 22.5" frame
    $140
    Boulder
  136. Specialized Stumpjumper Expert mountain/Trail bike
    $260
    Boulder
  137. Trek Marlin 7 Mountain Bike - 29er Hydraulic Disc Brakes
    $450
    South Boulder
  138. Giant Liv Alight 3 Hybrid Commuter Comfort Bicycle
    $200
    South Boulder
  139. REI Co-op Cycles ADV 3.1 Adventure Bicycle
    $600
    South Boulder
  140. Specialized Crossroads Hybrid Bicycle Aluminum Frame
    $300
    South Boulder
  141. GT Agressor Mountain Bicycle XXL Aluminum Frame
    $200
    South Boulder
  142. Gary Fisher Tassajara GS Mountain Bike
    $260
    South Boulder
  143. Schwinn Clear Creek Comfort Bicycle
    $120
    South Boulder
  144. Specialized Expedition Sport Mountain Bike
    $200
    South Boulder
  145. Schwinn Ranger Comfort Commuter 21 Speed Bicycle
    $200
    South Boulder
  146. Gary Fisher Kaitai Aluminum Frame Front Suspension Mountain Bike
    $250
    South Boulder
  147. Cannondale Competition Series 3.0 SM900 Aluminum Frame Mountain Bike
    $400
    South Boulder
  148. Gary Fisher Joshua X1 Full Suspension Mountain Bike
    $300
    South Boulder
  149. Trek 2100 ZX Carbon Frame Road Bicycle
    $300
    South Boulder
  150. Cannondale Scalpel 29" Carbon 2 Lefty Mountain Bike
    $1,000
    South Boulder
  151. Giant Boulder Mountain Bike
    $180
    South Boulder
  152. Jamis Citizen 2 Comfort Bicycle
    $250
    South Boulder
  153. Marin San Rafael DS2 - Aluminum Frame, Disc Brakes
    $260
    South Boulder
  154. Bianchi Vigorelli Bicycle Frame and Fork
    $250
    South Boulder
  155. Bianchi 1885 Reparto Corse Bicycle HAND MADE in ITALY
    $900
    South Boulder
  156. Trek Fuel 90 Full Suspension Mountain Bike 🚲
    $350
    South Boulder
  157. Kona NuNu Mountain Bike
    $200
    South Boulder
  158. Gary Fisher Utopia Hybrid Urban Commuter Bike 🚴‍♂️
    $200
    South Boulder
  159. Schwinn Traveler Road Bike - Vintage
    $200
    South Boulder
  160. Nishiki Bravo Mtn Bicycle
    $125
    South Boulder
  161. Cannondale F600 Comp Mountain Bicycle
    $250
    South Boulder
  162. Specialized HardRock FS Mountain Bike - Silver
    $200
    South Boulder
  163. Gary Fisher Cake 3 DLX Bicycle Full Suspension Hydraulic Disc Brakes
    $450
    South Boulder
  164. Trek 6500 Aluminum Frame Mountain Bicycle - Blue
    $200
    South Boulder
  165. Trek 6500 Aluminum Frame Mountain Bike - Orange
    $200
    South Boulder
  166. GT Aggressor 2.0 Aluminum Frame Mountain Bike
    $200
    South Boulder
  167. Fuji Nevada Mountain Bike
    $150
    South Boulder
  168. Fuji Eddy Mountain Bicycle
    $150
    South Boulder
  169. GT Outpost All Terra Vintage Mountain Bike
    $200
    South Boulder
  170. GT Outpost Mountain Bicycle - Front Suspension
    $175
    South Boulder
  171. Giant Rincon Mountain Bicycle
    $200
    South Boulder
  172. Kona Hoss Aluminum Frame Mountain Bike
    $250
    South Boulder
  173. Specialized Hardrock Punk Mountain Bike
    $200
    South Boulder
  174. Kona Cinder Cone Suspension Mountain Bicycle
    $250
    South Boulder
  175. GT Saddleback Mountain Bike - Front Suspension
    $125
    South Boulder
  176. Diamondback Octane 24 Suspension Mountain Bike
    $100
    South Boulder
  177. Schwinn Super Sport GL Road Bike Aluminum Frame
    $250
    South Boulder
  178. Schwinn Woodlands Commuter Hybrid Bike
    $150
    South Boulder
  179. Classic Schwinn s [ 9 five] .3 Aluminum Mountain Bike
    $175
    South Boulder
  180. Centurion Dave Scott Ironman Expert Vintage Bicycle
    $400
    South Boulder
  181. Classic Diamondback Ascent Mountain Bicycle 🚵‍♂️
    $140
    South Boulder
  182. Schwinn Mesa GS Aluminum Frame Suspension Mountain Bike bicycles
    $200
    South Boulder
  183. Felt FA SL Superlight Aluminum Road Bicycle
    $700
    South Boulder
  184. Specialized Hardrock Sport Mountain Bike
    $250
    South Boulder
  185. Specialized Roll Sport Comfort Hybrid Bike
    $250
    South Boulder
  186. Castellano Fango Softail Aluminum Frame Mountain Bicycle
    $380
    South Boulder
  187. Schwinn Mesa GSX Aluminum Mountain Bike Front Suspension
    $250
    South Boulder
  188. Cannondale F300 Front Suspension Mountain Bike
    $275
    South Boulder
  189. Torker U District Urban City Single Speed Bicycle
    $120
    South Boulder
  190. Trek 7.3 FX Bicycle
    $250
    South Boulder
  191. Specialized RockHopper Bicycle 🚲
    $200
    South Boulder
  192. Motobecane Elite Adventure 28" Gravel Hybrid Bike
    $200
    South Boulder
  193. Gary Fisher Napa Mointain Bike
    $250
    South Boulder
  194. Gary Fisher Mamba Front Suspension Mountain Bike
    $200
    South Boulder
  195. Giant ATX780 Front Suspension Mountain Bike
    $200
    South Boulder
  196. Trek 3900 WSD Mountain Bicycle
    $200
    South Boulder
  197. Specialized RockHopper Mountain Bicycle 🚵‍♂️
    $200
    South Boulder
  198. TREK 720 bike
    $150
    Boulder
  199. VELO ORANGE SMOOTH TOURING SADDLE
    $35
    Gunbarrel
  200. Kona Fire MTB bike
    $80
    Gunbarrel
  201. Giant Cypress SX 27 Speed Hybrid
    $150
  202. KHS Montana Custom Hybrid/Comfort Bike Excellent Cond. Just Tuned
    $240
    Louisville
  203. TREK MT 220, MT220 Kids Hardtail Mountain Bike Excellent Cond. Tuned
    $260
    Louisville
  204. TREK Navigator 200 Hybrid / Comfort Bike Like New Cond. Fully Serviced
    $340
    Louisville
  205. TREK 7.2 FX Hybrid / Gravel Bike Excellent Condition Fully Serviced
    $360
    Louisville
  206. 20" Kent Freestyle Bike
    $40
    Erie
  207. Fuji Mountain Bike
    $150
    Berthoud
  208. Diamond Back Mountain Bike
    $100
    Berthoud
  209. State Bicycles Klunker with frame bag
    $300
  210. Dero Fixit Repair Station NEW
    $400
    Longmont
  211. Schwinn Ranger
    $200
  212. TREK Navigator 400 Step Through Hybrid / Comfort Bike Like New Tuned
    $340
    Louisville
  213. FUJI Monterey Hybrid / Comfort Bike Like New Condition Fully Serviced
    $380
    Louisville
  214. SCHWINN Sierra GS Woman's Hybrid / Comfort Bike Excellent Cond. Tuned
    $220
    Louisville
  215. Steel Trek 21"
    $250
    Louisville
  216. Trek 620
    $250
    Louisville
  217. Felt F65X Cyclocross Bike
    $590
    Superior
  218. Schwinn Jaguar 7 Speed Cruiser
    $125
  219. Specialized Turbo Creo 2 Comp ES Ebike
    $3,800
    Boulder
  220. Miyata 21 Speed Hybrid
    $125
  221. Specialized Kids Bicycle - Jett 20" 6 gears
    $200
    Superior
  222. Specialized Eliminator Grid Trail 2Bliss Ready T9 New Bike Tube
    $60
    Superior
  223. Lemond Poprad
    $350
    Boulder
  224. Giant Cypress Hybrid Bike
    $100
    Lafayette
  225. Trek 7700 FX
    $150
    Lafayette
  226. Trek FX6
    $700
    Lafayette
  227. Scott Speedster S30
    $250
    Lafayette
  228. Vintage MOTOR BICYCLE Ross Cruiser 21" for 5'10-6'4 Tall RAD BIKE!
    $250
    Metro Denver
  229. Australian "Malvern Star Sprint 1.0" - 700c Road wheels/tires
    $100
    Longmont
  230. Specialized Turbo Levo SL 2 Comp Carbon Large-Brand New!!!
    $5,300
    Louisville
  231. Schwinn “Sid” automatic 3 speed cruiser
    $200
    Louisville
  232. GT Pro Performer 29” World Tour
    $950
  233. Hilltopper e-bike conversion kit
    $249
  234. 2025 Trek Madone SLR Carbon Road Bike Large
    $5,950
    Boulder
  235. Medium 2023 Trek Slash 9.8 AXS carbon 29er ($4k on bluebook)
    $2,750
    Boulder
  236. Large Specialized S-Works Stumpjumper 29 XX1 (excellent shape)
    $1,800
    Boulder
  237. GT Bullet Kids Mountain Bike Excellent Condition Fully Serviced
    $180
    Louisville
  238. Grand Tour Road Bike
    $120
  239. Univega Nuovo Sport
    $120
  240. E bike 2019 Rad Rover Fat tire
    $800
    Longmont
  241. E bike 2025 Jaison Hunter Pro foldable
    $900
    Longmont
  242. Raleigh Technium ATB-All Terrain Bike Excellent Cond. Fully Serviced
    $320
    Louisville
  243. Raleigh Talus Mountain Bike (XS) Like New Condition Ready to Ride
    $240
    Louisville
  244. COOP DRT 1.2 27.5” Small mountain bike
    $500
    Longmont
  245. 24" Kids Diamondback
    $45
    Lafayette
  246. E-Bike Carrier
    $400
    Niwot
  247. Hyper Spin Fusion 700C Hybrid / Road Bike Excellent Condition Tuned
    $180
    Louisville
  248. BMX Fitbike, 18" wheels, steel frame
    $175
    Boulder
  249. 2024 Ibis Ripley V4S – Medium – XX SL Transmission – I9 Hydra Carbon W
    $5,500
    Longmont
  250. Giant Trance X2 2017
    $600
    Boulder
  251. 1981 Mongoose Supergoose Old School BMX Bike Bicycle Full Chromoly
    $2,200
    Superior
  252. 1982 Schwinn Pixie
    $195
    Erie
  253. Raleigh USA M-55 Hardtail Mountain Bike Excellent Condition Just Tuned
    $220
    Louisville
  254. K2 ZED 1.0 Hardtail Mountain Bike Excellent Condition Fully Serviced
    $300
    Louisville
  255. Santa Cruz Tallboy 3 - Size XL (fits like a L)
    $1,200
    Boulder
  256. Niner Air9 Hardtail Medium 29er
    $500
    Superior
  257. 2023 Norco Sight VLT C1 - Large
    $4,500
    Lafayette
  258. Vintage Schwinn Sprint - Step-Through Frame - Town Bike - $125
    $125
    Lafayette
  259. Vintage Schwinn Traveler - Japanese Steel - Great Condition
    $225
    Lafayette
  260. Schwinn Le Tour (Pink/Magenta)
    $300
    Lafayette
  261. E-bike conversion kit
    $249
  262. Spawn Kotori 24” Kids dirt jumper/ pump track bike
    $800
  263. Segway Xyber e-bike
    $2,300
  264. Kids Bike, Scooter
    $50
    Niwot
  265. Ancheer 26" Electric Mountain Bike MAX
    $90
    Boulder
  266. Kayak-Dagger G-Ride 62 Whitewater Playboat
    $200
  267. Specialized Stumpjumper Pro with S-Sorks upgrades. Medium S3
    $3,750
    Boulder
  268. GT Speed Series Team Bike
    $2,000
    Lafayette
  269. Vintage Cannondale F500
    $325
    Boulder
  270. Cannondale Adventure 700F Women’s Bike Package
    $299
  271. Rans Cruz recumbent bicycle, medium
    $800
    Longmont
  272. 2009 specialized carbon roubaix elite 58cm
    $600
    Boulder
  273. Specialized Enduro Mountain Bike S5
    $3,800
    Lyons
  274. 2022 Parlee Gravel Bike
    $3,400
  275. Townie Bike
    $200
  276. Townie Bike
    $200
  277. Santa Cruz Tall Boy
    $4,900
    Boulder
  278. Brand New Unused Linus Bike
    $1,095
    Boulder
  279. Onewheel XR classic
    $500
  280. Excellent condition Haibike
    $1,800
    Louisville
  281. Crupi 20” BMX Bicycle
    $200
    NW Longmont
  282. 1999 Lemond Zurich
    $1,050
    Boulder
  283. BikeE 1998 or later. 8 Gears, nice brakes and windshield!!!!!!
    $340
    Golden
  284. Tair Ripper - Small
    $2,500
    Boulder
  285. Cool , 70’s. 3 speed cruiser
    $90
    Longmont
  286. Quintana Roo TT Triathlon Race Bike - 55 cm
    $500
    SW Longmont
  287. 2 Huffy Cranbrook cruisers
    $200
    Longmont
  288. Aventon foldable ebike
    $1,600
    Erie
  289. KHS 1000 Fat Tire Bicycle
    $375
  290. Banshee Spitfire
    $1,250
    Boulder
  291. Titus Motolite
    $475
    Boulder
  292. Mondraker Leader 16-inch *geared* kid's bike
    $400
    SW Boulder
  293. Infinity Boss Three 700C Comfort Bike – Very Good Condition
    $125
    Erie
  294. 2025 L Evil Offering - Custom Dream Build - Carbon Wheels X0 AXS
    $4,300
    Boulder
  295. Simcoe Signature Roadster — 52cm | Brooks Saddle | Nexus 7 | Ortlieb P
    $700
    Boulder
  296. Kona Full Suspension Medium Hei Hei Deluxe
    $700
    Estes Park
  297. Boys Specialized Youth Bike
    $175
    Longmont
  298. Women's Schwinn Sidewinder Steel Frame Cruiser Bike
    $140
    Boulder
  299. Giant E-bike
    $990
    Lafayette
  300. 2021 Specialized Diverge Pro 58cm
    $4,350
  301. Fuji Road Bicycle with Carbon Frame - Excellent Condition!
    $300
    Lafayette (Public Rd/287)
  302. Men’s Giant TCR-C2 Road Bike - High Quality - Like New Condition!
    $300
    Lafayette (Public Rd/287)
  303. Isla Beinn 20" bike
    $250
    SW Boulder
  304. 2022 Blix Packa Genie Cargo Ebike 2060 Miles, Brand New OEM Battery
    $1,500
  305. Ceiling mount bike hoists - get them outta the way!
    $40
    Gunbarrel / North Boulder
  306. Santa Cruz Stigmata
    $2,200
  307. 2011 Trek Madone 4.7 58cm
    $975
    Boulder
  308. Diamond Mountain Bike
    $90
  309. Navaro Corsa Road Bike
    $250
    Erie
  310. Tubus Vega Rack, Ortlieb Tubus QR Axle Adapter and Seatpost Clamp
    $115
    Longmont, CO
  311. 2001 Schwinn Homegrown Comp 17"
    $575
    Table Mesa
  312. Trek Top Fuel 9.9 XTR size M/L
    $5,500
    South Boulder
  313. Bluvall K10 Ebike Boxed from Manufacturer
    $1,599
    Longmont
  314. Trek Speed Concept Project One w/ Disc Wheel
    $3,500
  315. Trek Discovery Channel Road Bike - Small Mint Condition
    $360
    North Boulder
  316. Centurion Lemans 1980s road bike
    $200
    Boulder
  317. iGo electric bicycle
    $750
    Boulder
  318. Specialized Roubaix Apex Comp 2012
    $750
    Longmont
  319. Fuji SST 2.0 LE Carbon Road Bike - Shimano Ultegra - Size Medium
    $650
    Boulder
  320. Niner Jet RDO 29in mtn-bike
    $1,800
  321. Niner Jet RDO 29inch mtn-bike
    $1,800
  322. Hilltopper bicycle conversion kit
    $249
  323. Soma Groove - Medium (26" + XT + RaceFace)
    $350
    Boulder / College
  324. Mondonico
    $1,600
  325. XL 2025 Transition spire - Carbon GX build
    $2,700
  326. Trek 7100 bicycle - Longmont
    $125
  327. 2000 Specialized Stump Jumper M2
    $250
    Boulder
  328. 2020 Evil the Wreckoning - full carbon L frame
    $1,700
    Boulder, CO
  329. Diamondback Wildwood Bicycle
    $175
    Firestone
  330. Diamondback Response XE29 Bicycle
    $275
    Firestone
  331. Bulls iconic evo2 speed ebike
    $1,700
  332. Trek Navigator 200- large, comfortable hybrid/upright/aluminum
    $125
    Mapleton Hill
  333. Scott Foil 15 Aero carbon fiber road bike
    $1,800
    Lafayette
  334. Ibis Ripley LS
    $1,800
    North Boulder
  335. Trek road bike gunmetal blue
    $250