loading
reading
writing
saving
searching

refresh the page.

craigslist

Bicycle Parts For Sale in Boulder, CO

  1. see also
  2. Bike Anti Theft Alarm *NEW
    $10
    Louisville
  3. TYMO hair straightener comb **NEW
    $40
    Broomfield
  4. Bike Rack Front Wheel Mount * Yakima New
    $29
  5. Bike Pedals -Spd Shimano Clipless Mtb. *Like New
    $29
  6. Locking Bicycle Hamdlebar Grips
    $15
  7. New Knog Oi Bike Bell
    $15
    Boulder
  8. Float Float X/DPX2 (1/2" shaft) Volume Tuning Kit
    $12
    Boulder
  9. Shimano ME5 MTB Shoes Men's 10.5
    $50
    Boulder
  10. CyberRack E2 Hitch eBike Rack with Ramp – 2-Bike Electric Bike Carrier
    $280
    Berthoud
  11. Bike Car Rack RockyMounts Tray
    $29
  12. Bike Rack Tray Car Mount
    $29
  13. Trek Y-11 Carbon Fiber Bike Frame
    $80
    South Boulder
  14. Iberia Pak Rak Quick Release Trunk Bag and Rack Combo
    $50
    South Boulder
  15. ENVE SES 3.4 AR Disc Wheels NIB
    $1,800
    S Boulder
  16. 26x2.35 City Tires Used
    $18
    S Boulder
  17. 3T Stem 120mm
    $24
    S Boulder
  18. 3T Carbon Handlebar, Stem, Seatpost w Olympic Graphics
    $395
    S Boulder
  19. Selle Italia Flite Saddle - Giro d'Italia Special Edition- NIB
    $95
    S Boulder
  20. NOS Campagnolo C Record Rear Hub 32h
    $120
    S Boulder
  21. Campagnolo Tool Set
    $4,750
    S Boulder
  22. Mapei Socks- Defeet
    $20
    S Boulder
  23. Travel Trac Fluid+ Bicycle Trainer with Remote & Front Wheel Stand
    $120
    Louisville
  24. Yakima 2-Bike Hitch Rack for 1-1/4” Hitch Receiver Like New Condition
    $160
    Louisville
  25. CrankBrothers Highline 7 Dropper Post, 100mm, 31.6 Dropper Seatpost
    $40
    Boulder
  26. Carbon fiber race rim 29"
    $40
    Boulder
  27. 1993 Vintage Blackburn Bicycle Rack Strap
    $8
    Longmont
  28. Vintage 1992 Giant Bike Expandable Accessory Bag
    $8
    Longmont
  29. Vintage USA Concord Bicycle Replacement Tube, Unused - 26 x 1.5
    $3
    Longmont
  30. Continental Super Sport Road Bike Tire - 700c x 23c🚲
    $30
    South Boulder
  31. Look Delta Bi-Matière road bike pedal cleats
    $20
    South Boulder
  32. Bicycle Rack
    $100
    Lafayette
  33. Bike Project: Steel Bike Frame with parts
    $20
    Longmont
  34. NEW Mountain Bike Shoes - size EUR 41
    $40
    Longmont
  35. Simonetti Aero Aluminum Bike Frame
    $150
    Longmont
  36. $110 GORE Bike Wear Gore-Tex Shoe Covers
    $60
    Longmont
  37. Bontrager Carbon Cycling Shoes with eSoles - sz 45
    $75
    Longmont
  38. Nashbar Angliru Road Bike Pedals (Black)
    $20
    Boulder
  39. Specialized S Works Carbon 175mm 52/36 11-speed BB30 crankset
    $120
  40. 6KU Track Wheel Set
    $30
    Lafayette
  41. SR Suntour XCR34 29" Fork
    $50
    Lafayette
  42. Used Trex black bicycle saddle seat
    $5
    Longmont
  43. LOOK KEO Road Cleats Bicycle Pedal Red
    $10
    Boulder
  44. Bike Shoes - Men's/Women's
    $40
    Longmont
  45. NEW! Commuting Backpack with Helmet Pocket
    $40
    Longmont
  46. Bicycle Work Stand (Feedback Sports)
    $175
    So Boulder
  47. Louis Garneau Ergo Air Carbon Cycling Shoes - size EU 42
    $60
    Longmont
  48. Rack for 2 bicycles - floor to ceiling rack for garage
    $20
  49. Selle Italia X-LR Kit Carbonio Superflow, Saddle, 268 x 140mm, 138g, B
    $120
    Boulder
  50. ITM Aluminum Road Bike Drop Bar Handlebar
    $40
    Boulder
  51. Giro Mountain Bike Helmet
    $15
    Boulder
  52. Bike Light - LED headlight and rear light
    $15
    Boulder
  53. NEW! $130 (2) Bike Cover for Bike Rack
    $90
    SW Longmont
  54. Yakima 4 Bike rack 2" hitch complete
    $80
  55. Mustache Bars
    $45
    Erie
  56. Thule Wheel On wheel carrier
    $35
    Erie
  57. Yakima Freeloader
    $80
    Erie
  58. 2025 Bontrager Line Comp 30 Wheelset
    $325
    Boulder
  59. Park Tool PRS-20 Team Race Stand
    $80
    Boulder
  60. Ergon SR Allroad Core saddle
    $60
    Boulder
  61. SQLab 30X 12 degree mid-rise bar
    $60
    Boulder
  62. 4 Bike/MultiSport Helmets
    $50
    Longmont
  63. Pearl Izumi Cycling Shoes - sz 45.5
    $30
    Longmont
  64. Yakima 2-Bike Hitch Rack for 2” Hitch Receiver
    $140
    Louisville
  65. Vintage Blackburn Bicycle Rear Cargo Rack
    $30
    South Boulder
  66. Velocity Blunt 35 Bicycle Rim 27.5
    $200
    South Boulder
  67. Performance Hitch Mount Bicycle Carrier
    $70
    South Boulder
  68. Axiom Pet Basket with Rack and Handlebar Mounts
    $60
    South Boulder
  69. Giant GX28 rim and Giant Crosscut tire
    $100
    South Boulder
  70. Shimano Deore XT Rear Hub
    $30
    South Boulder
  71. Bontrager Select Bicycle Rim - 26"
    $40
    South Boulder
  72. Topeak Alien II 31-function bicycle multi-tool
    $50
    South Boulder
  73. Yakima Hitch Mount 4 Bike Rack
    $80
    South Boulder
  74. Specialized Globe Pannier Adapters - Front
    $50
    South Boulder
  75. Trek Bontrager Interchange Removable Rear Basket
    $30
    South Boulder
  76. Saris Bones 2 Bike Trunk Rack
    $70
    South Boulder
  77. Nantucket Bike Basket
    $30
    South Boulder
  78. Thule 822 Bed Rider Truck Bike Mount Aluminium
    $60
    South Boulder
  79. Lemond Revmaster Pro Seat Post
    $10
    South Boulder
  80. Yakima Track Rail Bicycle Tray Carrier for Rooftop Racks 🚴
    $50
    South Boulder
  81. MTB Wheels Alexrims Racers Edge Adventurer + Bontrager
    $100
    South Boulder
  82. Via Velo Bike Lock
    $20
    Boulder
  83. Yakima 2-Bike Hitch Rack for 2” Hitch Receiver
    $120
    Louisville
  84. 29" alluminum front rim
    $20
    Boulder
  85. HighPOWER Li-Ion Battery Charger Model HP8204L2 Input 115/230VAC 60/50
    $60
    Boulder
  86. Bontrager GR Elite Isozone Gravel Handlebars 31.8mm 42cm New
    $40
    Boulder
  87. NEW Slime Self-Sealing Bike/Bicycle 29" Inner Tube Schrader Valve
    $5
    Niwot
  88. Feedback Sprint Repair Stand
    $175
    Boulder
  89. Answer ProTaper carbon fiber handlebar
    $40
    Louisville
  90. Shimano Dura Ace CS-7700 9 Speed Cassette
    $37
    Longmont
  91. Shimano Ultegra FC-6500/6503 172.5mm Crankset Double 53/39T 9-Speed
    $35
    Longmont
  92. Trek Saddle Bags
    $20
    E Boulder
  93. NEW with tag! Pearl Izumi Elite Women's Drop Tail Cycling Bibs - SMALL
    $80
    Longmont
  94. Racermate CompuTrainer Pro - Bike Trainer System
    $300
    Longmont
  95. NEW! Mountain Bike Shoes, SPD - EU 40
    $30
    Longmont
  96. saddle bags basket
    $40
    Longmont
  97. 142 mm Pro Stealth Team Saddle
    $200
  98. 164 mm Brooks C17 Carved Saddle
    $125
  99. 2 Brand New 40 Pathfinder TLR Fast Gravel Tires
    $55
  100. Bike Build Kit , Ultegra , Mavic, RXL, 105, Bontrager speed brakes.
    $200
  101. Headset Cane Creek1 1/8 / Titanium preload assembly
    $50
  102. Cane Creek Headset 11/8 NEW
    $40
  103. Shimano Deore 9 Speed Shifter and Derailluer
    $25
  104. Bontrager Tire Hard case light 700x25
    $25
  105. TRP TRI Bike Brake Caliper Rear
    $40
  106. Reynolds Carbon Fork
    $60
  107. Mountain Bike Stem/Raceface
    $60
  108. Forks 1 , 11/8 forks threaded.
    $40
  109. Easton Monkey Bar
    $40
  110. Continental Home Trainer Tires 700c x2
    $25
  111. Original Schwinn Grips
    $30
  112. FSA 44 Tooth chain ring. 104 BCD
    $40
  113. Yakima Roof Top Bike Carriers / price is for both
    $140
  114. Sport Rack Down Tube Adaptor
    $25
  115. Syntace Vector Carbon Bars MTB.
    $60
  116. Bike racks x2
    $20
  117. Track Forks from the 50’s 1 inch.
    $60
  118. Schwinn Approved 1970’s Generator Lights /Germany
    $30
  119. Odyssey BMX Stem TDFL 45 degrees UNUSED
    $50
    Lafayette
  120. (2) NEW IN BOX! Yakima LockJaw Rooftop Bike Trays
    $150
    Longmont
  121. $200 Rudy Project Airstorm Cycling Helmet
    $75
    SW Longmont
  122. NEW! Osprey Berm 12L Biking Backpack
    $100
    Longmont
  123. Women's 'Specialized' Adjustable Bike Helmet
    $25
    SW Longmont
  124. Fox Float X2 FACTORY SERIES 210 x 55 mm (Standard Metric)
    $150
    Lafayette
  125. Women's Giro Reva Mountain bike shoes - EU 39 - LIKE NEW
    $50
    Longmont
  126. NEW Mt Bike Tire - 26" x 1.90"
    $20
    Longmont
  127. NEW! BOA Cycling Shoes with cleats and shoe covers
    $75
    Longmont
  128. Brooks b17 saddle
    $80
    Longmont
  129. New! 26" Street Tires
    $30
    Longmont
  130. Biking Clothes - Men's S,M,L
    $0
    Longmont
  131. Thule bike rack
    $99
    Boulder
  132. Specialized Roubaix Expert 2010
    $499
    Boulder
  133. E-Bike Loading RAMP + License Plate Relocation Bracket
    $80
    Longmont
  134. Carbon 650b wheelset: LB rims + i9 hubs + Sapim spokes
    $500
    Boulder
  135. Bike storage floor stand
    $10
    Boulder
  136. XCadey chainrings, 50/34t, 110 BCD, 5 bolts
    $20
    Boulder
  137. Topeak Tri-cage Carbon (for under saddle) (x2)
    $30
    Boulder
  138. Schwinn girls bike needs work
    $5
    Boulder
  139. David’s bridal size 4 grey lace dress
    $5
    Boulder
  140. Red wrap around Ann Taylor dress extra small
    $5
    Boulder
  141. Shimano Bike Cycling Shoes Mens 47 EU 2 bolt
    $40
    Boulder
  142. Assos Mercedes AMG Petronas Full-length Sleeve Jersey (White) - Small
    $25
    Boulder
  143. Sidi Men’s Road Shoes Size 46
    $50
    Erie
  144. Pearl Izumi Men’s Elite V3 Road Shoes 46.5
    $25
    Erie
  145. Rolf Sestriere Front Wheel
    $50
    Erie
  146. DT Swiss 350 Boost 27.5 Wheels, Tires, Rotors
    $300
    Boulder
  147. Light & Motion Seca 700 lumen bike light
    $25
    Boulder
  148. womans Specialized Road bike shoes, new
    $40
    south boulder
  149. Saris 2 Bike Rack
    $300
    Boulder
  150. NEW! Cycling Shoes with BOA with cleats and shoe covers
    $75
    Longmont
  151. Bottom Bracket Tool - 44mm x 16-notch - BBT-69.2
    $5
    Boulder
  152. 3 Bicycle Inner Tubes + 2 CO2 Cartridges with nozzle
    $20
    Boulder
  153. Campagnolo Record 10 Speed Rear Derailleur
    $100
    Boulder
  154. Canyon integrated carbon handlebar 46mmx80mm
    $200
  155. Thomson carbon road handlebar 46mm
    $100
  156. Gladiator Advanced Bike Storage Hook
    $10
    Niwot, CO
  157. Dero Fixit Repair Station NEW
    $400
    Longmont
  158. Ibis Blackbird Send MX Mullet Wheelset
    $500
    longmont
  159. BikeYoke Revive Max 160mm 34.9mm
    $280
    longmont
  160. 2022 Performance Elite Series 34 FLOAT 29 140mm FIT4
    $400
    longmont
  161. SARIS Bones Bike Rack
    $25
    Longmont
  162. Bicycle Basket
    $20
    Longmont
  163. Banjo Brothers Bicycle Rack Top Bag very good condition
    $20
    Boulder
  164. Planet Bike Mini Versair Pump
    $15
    Boulder
  165. Silca Tattico Mini Pump
    $30
    Boulder
  166. Shimano Ultegra HG800 11 speed cassette 11x34
    $60
    Boulder
  167. Shimano HG-700 11 speed cassette 11x34 mint condition
    $35
    Boulder
  168. Whisky Parts No. 7 Carbon Seatpost 30.9 x 400mm straight
    $65
    Boulder
  169. Redshift Sports ShockStop PRO Suspension Handlebar Stem 90mm +/- 6 deg
    $150
    Boulder
  170. Quality Wheels RS505/DT R500 Disc Rear Wheel (700c) (12 x 142mm)
    $60
    Boulder
  171. Mason x Hunt 4 Season tubeless disc rear wheel 700c Shimano freehub
    $100
    Boulder
  172. Rocky Mounts Step Thru Frame Brace
    $15
  173. Campagnolo Chorus 10spd group set
    $400
    Boulder
  174. Performance Bicycle Roller / Trainer
    $25
  175. Wren Sports Suspension fork 150mm
    $300
    Longmont
  176. 2023 Fox Transfer SL 31.6 new in box
    $200
    Longmont
  177. Manitou Machete 29+ 120mm travel
    $100
    Longmont
  178. Thule Cargo Box
    $375
  179. FOX Transfer Factory Dropper Seatpost 175mm x 30.9
    $100
    Boulder
  180. Rock Shox Reverb dropper seat post 100mm x 31.6 - needs some work
    $50
    Boulder
  181. KS Cruxi CRUXi Dropper Seatpost 100mm travel x 31.6 diam
    $100
    Boulder
  182. Shimano ME4 Trail SPD Shoes EU39
    $50
    Boulder
  183. Kids MTB gear lot everything you need - shoes,shirts, gloves pand pads
    $25
    Boulder
  184. Yakima 2 bike rack
    $200
  185. Bontrager RACE Threadless Alloy Road Stem
    $15
    Longmont
  186. Bontrager Race Alloy Seat Post
    $18
    Longmont
  187. Bontrager Race Alloy Handle Bars
    $18
    Longmont
  188. Selle Italia SLK Saddle
    $15
  189. New / Never mounted Kenda Kaliente L3R Pro Road Tire
    $15
  190. Shimano Ultegra 6500 Road Bike Front Derailleur
    $20
  191. Garage cleanup (MTB )
    $123
    Boulder
  192. Comfy bike seats and new E Bike Tires
    $180
    S Boulder
  193. MKS Sylvan touring pedals
    $20
    Longmont
  194. Fox 38 170 29er Fork
    $350
    Lafayette
  195. Cycle Ops (CycleOps) bicycle trainer
    $50
    Wheat Ridge
  196. New In Box SIZE 12!SPECIALIZED 2FO "Clip in " Enduro/ Dh shoes
    $40
    Longmont
  197. Bike Stand - Ninja Stoke - Wood
    $30
  198. Sidi Eagle 7 Mountain Bike Shoes size 47.0 / 12.0
    $30
    Boulder
  199. Kids Pearl iZumi wind jacket and vest
    $20
  200. Troy Lee Designs Stage - Small Full Face
    $100
  201. [brand new] Oquo (Orbea) MC32 Mountain Bike Wheels w/ tires and rotors
    $400
    Boulder
  202. Carradice Super C saddlebag
    $50
  203. Assioma pro mx power meter
    $350
  204. Kinetic indoor bike trainer
    $50
    Boulder
  205. Ceiling Bicycle hangars
    $10
    longmont
  206. Shimano Di2 Remote Climbing Shifter
    $40
    Boulder - Longmont - Denver
  207. LOOK A-Stem
    $85
    Boulder - Longmont - Denver
  208. Shimano Ultegra Rear Derailleur 11 Speed
    $35
    Boulder
  209. Deda Zero100 Team Stem- NEW!
    $55
    Boulder
  210. Fulcrum Racing 4, Disk brake, Tubeless ready - New
    $270
    Boulder - Denver
  211. Ortlieb Waterproof Bike Panniers
    $100
    Boulder
  212. 2022 SRAM GX Eagle 1275, 12 Speed Cassette, 10-52T
    $100
    Boulder
  213. SRAM XX1 Eagle DM DUB "Boost" Carbon Crankset
    $225
    Boulder
  214. MAXXIS Rekon 27.5x2.6 mountain bike tires
    $10
    Longmont
  215. BMA Bike Jersey
    $25
    Louisville
  216. Adjustable BV Bike Kickstand
    $12
    South Boulder
  217. Guess silky small flower dress
    $3
    Boulder
  218. Brooks cambium C15 saddle, like new
    $100
    Boulder
  219. Sram Crankset X7 175mm BB30
    $100
    Boulder
  220. Sram Crankset Rival 22 175mm BB30 - $100
    $100
    Boulder
  221. KEO Carbon Pedals (look)
    $50
    Boulder
  222. Shimano Ultegra pedals (look)
    $50
    Boulder
  223. Water Bottle Carrier - Profile Design RML
    $30
    Boulder
  224. Thule Velo Vise Fork-Mount bike trays and cross bars
    $35
    Boulder
  225. Premium Gravel/Road Bike Parts
    $0
  226. Yakima Bike Rails
    $45
    Lafayette
  227. 2-Bike hitch mounted bike rack
    $50
    Lafayette
  228. Yakima Hitch Bike Rack
    $475
    Lafayette
  229. 2 Lolo bicycle handlebar rack mounts
    $30
    Boulder
  230. Front MTN wheels great tires
    $10
    SE Boulder
  231. Dual battery ebike conversion kit
    $300
    Boulder
  232. WTB Silverado Saddle - Titanium
    $70
  233. Cannondale SI Spidering Plateau Chainring 32t - NEW
    $35
  234. SRAM GXP Carbon Crank - Direct Fit chainrings with spider
    $45
  235. Fork Up - Cannondale Lefty Wheel Mount
    $15
  236. Shimano Dura Ace RD-7700 9-Speed Rear Derailleur
    $30
  237. Shimano Gravel/MTB Shoes XC702 Wide
    $110
    Longmont
  238. Serfas hardshell bike box
    $200
    Boulder
  239. Calfee carbon fiber disc road fork
    $60
    Boulder
  240. Continental 4Season 25mm Brand New Road Tire
    $50
    Superior
  241. Ritchey Carbon Breakaway Travel Bike
    $2,000
    Lafayette
  242. Complete Yakima roof rack system
    $950
    Boulder
  243. BOB Trailer
    $200
    Boulder
  244. SID Ultimate 120mm travel 44 rake-remote ready
    $500
    boulder
  245. Thumb throttle for ebike
    $10
    Louisville
  246. Rockymounts fork mount for Maverick Forks
    $20
    Boulder
  247. Emporia GC3 Pro Gravel HED Wheels
    $900
    Boulder
  248. Yakima hitch mount hanging bike rack with integrated cable lock
    $100
    Superior
  249. Fulcrum Rapid Red 500 700c gravel wheelset
    $180
    Lafayette
  250. RockyMounts 2-bike Hitch Rack
    $120
  251. Thule 56" square crossbars
    $50
    Longmont
  252. Sidi Dragon 3 Carbon MTB Size 44
    $50
    Louisville
  253. Rocky Mounts 2 Bike Hitch Rack - 1inch
    $100
  254. Mavic Cosmic SL 32 Wheelset 12mm x 100mm 12mm x 142mm Centerlock Shima
    $550
    Berthoud
  255. QERIDOO Speedkid1, buggy, walker, jogger Petrol
    $150
    Berthoud
  256. Stems
    $10
    Longmont
  257. Bike seatposts. Variety
    $10
    Longmont
  258. Handlebars road Variety
    $20
    Longmont
  259. Vintage 7sp Wheels – Mavic hubs/Matrix rims
    $150
    Lafayette
  260. Tubus Duo front rack
    $40
  261. Giant XCR XL Frame: SL-Aluxx
    $400
    Superior
  262. Absolute Black 38t round chainring. 104 bcd
    $40
  263. Mavic 700c road bike carbon fiber front wheel
    $60
    Boulder
  264. New Shimano WR 62L Dynalast Carbon Cycling Shoes-Size 38
    $50
    Louisville, CO
  265. Rhode Gear Bike Trunk
    $20
    Martin Acres
  266. Sram X01 11 speed cassette new 11-42
    $200
    Boulder
  267. Vintage bike parts, tires, frames, rims
    $900
    Longmont
  268. TAG ALONG $40/ SHOES $20/ TRAINER $20/ BIKE borrow city $150/ xoearth
    $20
    Boulder
  269. HELMET FLAGS reflective/ BIKE RACK upgrade cargo/ TRAINER/ xoearth
    $35
    Boulder Central
  270. Seatylock brand “Forever “ bike lock
    $50
  271. REAR SHOCK FOR MTB
    $500
    BOULDER
  272. For Sale: Kinetic Bike Trainer + Accessories
    $150
    Superior
  273. Hard case for bicycles with S&S couplings
    $200
    Broomfield
  274. Rocky Mounts locking fork mounts
    $50
    Broomfield
  275. TRP Spyre Post-Mount Disc Brake Caliper - New in Box
    $50
  276. G-Form Pro-X3 Elbow Pads - Size Large
    $20
  277. RockyMounts quick-release roof bike rack
    $50
  278. Tubus Tara Lowrider Front Bike Rack (Black)
    $50