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Bicycle Parts For Sale in Boulder, CO

  1. see also
  2. Travel Trac Fluid+ Bicycle Trainer with Remote & Front Wheel Stand
    $120
    Louisville
  3. Yakima 2-Bike Hitch Rack for 1-1/4” Hitch Receiver Like New Condition
    $160
    Louisville
  4. Park Tool Double-Sided Repair Stand & Base
    $150
    Boulder
  5. Women's 'Specialized' Adjustable Bike Helmet
    $25
    SW Longmont
  6. NEW! Osprey Berm 12L Biking Backpack
    $90
    Longmont
  7. Racermate CompuTrainer Pro - Bike Trainer System
    $300
    Longmont
  8. New! 26" Street Tires
    $30
    Longmont
  9. Rock Shox Reba RL 120mm 29" Boost
    $180
    North Boulder
  10. Bontrager Speed Brake Set Unused
    $120
    Lafayette
  11. Race light stem white perfect
    $75
    Lafayette
  12. Durace crankset 172.5 Single ring with BB
    $80
    Lafayette
  13. 105 3x10 Shifters work perfectly small scratches
    $100
    Lafayette
  14. Ultegra hub/ Mavic wheels 10 Speed 130/100 excellent.
    $180
    Lafayette
  15. NEW! BOA Cycling Shoes with cleats and shoe covers
    $75
    Longmont
  16. Bike Project: Steel Bike Frame with parts
    $20
    Longmont
  17. Biking Clothes - Men's S,M,L
    $0
    Longmont
  18. Specialized 29x2.0 Tubeless Ready Tire
    $30
    Longmont
  19. Bicycle Rack
    $100
    Lafayette
  20. 29" alluminum front rim
    $20
    Boulder
  21. TriRig carbon mini open back arm cups for aero bars
    $36
    East Longmont
  22. HighPOWER Li-Ion Battery Charger Model HP8204L2 Input 115/230VAC 60/50
    $60
    Boulder
  23. Bontrager GR Elite Isozone Gravel Handlebars 31.8mm 42cm New
    $40
    Boulder
  24. Yakima 2-Bike Hitch Rack for 2” Hitch Receiver
    $120
    Louisville
  25. Bike Rack Front Wheel Mount * Yakama New
    $29
  26. Headset Cane Creek1 1/8 / Titanium preload assembly
    $50
  27. Cane Creek Headset 11/8 NEW
    $40
  28. Shimano Deore 9 Speed Shifter and Derailluer
    $25
  29. Bontrager Tire Hard case light 700x25
    $25
  30. TRP TRI Bike Brake Caliper Rear
    $40
  31. Mountain Bike Stem/Raceface
    $60
  32. Forks 1 , 11/8 forks threaded.
    $40
  33. Easton Monkey Bar
    $40
  34. Continental Home Trainer Tires 700c x2
    $25
  35. FSA 44 Tooth chain ring. 104 BCD
    $40
  36. Original Schwinn Grips
    $30
  37. Yakima Roof Top Bike Carriers / price is for both
    $140
  38. Sport Rack Down Tube Adaptor
    $25
  39. Syntace Vector Carbon Bars MTB.
    $60
  40. Bike racks x2
    $20
  41. Track Forks from the 50’s 1 inch.
    $60
  42. Schwinn Approved 1970’s Generator Lights /Germany
    $30
  43. Odyssey BMX Stem TDFL 45 degrees UNUSED
    $50
    Lafayette
  44. Assos Mercedes AMG Petronas Full-length Sleeve Jersey (White) - Small
    $25
    Boulder
  45. Yakima 2-Bike Hitch Rack for 2” Hitch Receiver
    $140
    Louisville
  46. CrankBrothers Highline 7 Dropper Post, 100mm, 31.6 Dropper Seatpost
    $40
    Boulder
  47. Carbon fiber race rim 29"
    $40
    Boulder
  48. Giro Mountain Bike Helmet
    $15
    Boulder
  49. Bike Light - LED headlight and rear light
    $15
    Boulder
  50. GORE Bike Wear Gore-Tex Shoe Covers
    $50
    Longmont
  51. NEW Mt Bike Tire - 26" x 1.90"
    $20
    Longmont
  52. Ceiling Bicycle hangars
    $10
    longmont
  53. 1up Rakattach
    $480
  54. Vintage 80s Guerciotti Sprint Red Frame Fork CAMPAGNOLO Etc. 56cm
    $80
    Metro Denver
  55. Vintage 1992 Giant Bike Expandable Accessory Bag
    $8
    Longmont
  56. Vintage USA Concord Bicycle Replacement Tube, Unused - 26 x 1.5
    $3
    Longmont
  57. 1993 Vintage Blackburn Bicycle Rack Strap
    $8
    Longmont
  58. Shimano XTR MTB M9000 Polymer-Coated Derailleur Cable Set
    $40
    Niwot
  59. NEW Slime Self-Sealing Bike/Bicycle 29" Inner Tube Schrader Valve
    $5
    Niwot
  60. Used Trex black bicycle saddle seat
    $5
    Longmont
  61. Wahoo Fitness KICKR CLIMB Bike Trainer
    $500
  62. NEW! Cycling Shoes with BOA with cleats and shoe covers
    $75
    Longmont
  63. (2) NEW IN BOX! Yakima LockJaw Rooftop Bike Trays
    $100
    Longmont
  64. $200 Rudy Project Airstorm Cycling Helmet
    $75
    SW Longmont
  65. Cycle Ops (CycleOps) bicycle trainer
    $40
    Wheat Ridge
  66. Nashbar Angliru Road Bike Pedals (Black)
    $20
    Boulder
  67. Rare Mavic Ksyrium SL Tour de France Centenary Edition Front Wheel - 700c
    $80
    Niwot
  68. 4 Bike/MultiSport Helmets
    $50
    Longmont
  69. Bike Shoes - Men's/Women's
    $40
    Longmont
  70. Performance Bike Box / Cargo Case
    $75
    Louisville
  71. Simonetti Aero Aluminum Bike Frame
    $150
    Longmont
  72. E-Bike Loading RAMP + License Plate Relocation Bracket
    $80
    Longmont
  73. NEW with tag! Pearl Izumi Elite Women's Drop Tail Cycling Bibs - SMALL
    $80
    Longmont
  74. NEW! Mountain Bike Shoes, SPD - EU 40
    $30
    Longmont
  75. NEW Mountain Bike Shoes - size EUR 41
    $40
    Longmont
  76. ITM Aluminum Road Bike Drop Bar Handlebar
    $40
    Boulder
  77. Yakima TubeTop Bicycle Frame Adapter
    $30
    South Boulder
  78. Yakima Double Down 4 Hitch-Mounted Bicycle Rack
    $120
    South Boulder
  79. E-Bike Battery, Downtube Mount and Charger 🚲
    $50
    South Boulder
  80. Shimano Altus FC-M371 Crankset
    $30
    South Boulder
  81. Shimano Altus SLM2010 Shifter + FDM370 Derailleur
    $20
    South Boulder
  82. Gudereit LC 75 Bicycle Frame with Suntour Suspension Fork
    $80
    South Boulder
  83. Shimano CX75 / Carbon-Laminate 700c Disc Wheelset – Tubular (Glue-On)
    $250
    South Boulder
  84. MTB Wheels Alexrims Racers Edge Adventurer + Bontrager
    $100
    South Boulder
  85. Topeak Super Tourist DX Disc Cargo Rack
    $40
    South Boulder
  86. Topeak MTX BeamRack Seatpost-mounted Cargo Rack
    $40
    South Boulder
  87. Thule Chariot Cougar 1 Trailer Stroller
    $40
    South Boulder
  88. Trek Y-11 Carbon Fiber Bike Frame
    $80
    South Boulder
  89. Look Delta Bi-Matière road bike pedal cleats
    $20
    South Boulder
  90. Iberia Pak Rak Quick Release Trunk Bag and Rack Combo
    $50
    South Boulder
  91. Velocity Blunt 35 Bicycle Rim 27.5
    $200
    South Boulder
  92. Vintage Blackburn Bicycle Rear Cargo Rack
    $30
    South Boulder
  93. Performance Hitch Mount Bicycle Carrier
    $70
    South Boulder
  94. Axiom Pet Basket with Rack and Handlebar Mounts
    $60
    South Boulder
  95. Giant GX28 rim and Giant Crosscut tire
    $100
    South Boulder
  96. Shimano Deore XT Rear Hub
    $30
    South Boulder
  97. Bontrager Select Bicycle Rim - 26"
    $40
    South Boulder
  98. Topeak Alien II 31-function bicycle multi-tool
    $50
    South Boulder
  99. Specialized Globe Pannier Adapters - Front
    $50
    South Boulder
  100. Trek Bontrager Interchange Removable Rear Basket
    $30
    South Boulder
  101. Saris Bones 2 Bike Trunk Rack
    $70
    South Boulder
  102. Nantucket Bike Basket
    $30
    South Boulder
  103. Thule 822 Bed Rider Truck Bike Mount Aluminium
    $60
    South Boulder
  104. Lemond Revmaster Pro Seat Post
    $10
    South Boulder
  105. Yakima Track Rail Bicycle Tray Carrier for Rooftop Racks 🚴
    $50
    South Boulder
  106. Wrench set
    $6
  107. Locking Bicycle Hamdlebar Grips
    $15
  108. Bike Rack Tray Car Mount
    $29
  109. Bike Rack Front Wheel Mount * Yakima New
    $29
  110. Bike Car Rack RockyMounts Tray
    $29
  111. Look KEO Clipless Road Bike Pedals Black, Carbon
    $15
    Erie
  112. Shimano PD-R540 SPD-SL Clipless Road Bike Pedals Black
    $15
    Erie
  113. Look KEO Clipless Road Bike Pedals Black, Carbon
    $15
    Erie
  114. NEW! $130 (2) Bike Cover for Bike Rack
    $90
    SW Longmont
  115. Bontrager Carbon Cycling Shoes with eSoles - sz 45
    $75
    Longmont
  116. Louis Garneau Ergo Air Carbon Cycling Shoes - size EU 42
    $60
    Longmont
  117. Dero Fixit Repair Station NEW
    $400
    Longmont
  118. Bike Anti Theft Alarm *NEW
    $10
    Louisville
  119. TYMO hair straightener comb **NEW
    $40
    Broomfield
  120. Capo windproof winter cycling jacket
    $20
  121. Capo fleece long sleeve cycling jersey
    $15
  122. Yakima 4 Bike rack 2" hitch complete
    $80
  123. Alugear 44t oval 107bcd 1-by chainring
    $15
    Boulder
  124. Eggbeater 3 pedals, NEW cleats, refresh kit
    $80
    Boulder
  125. New Shimano WR 62L Dynalast Carbon Cycling Shoes-Size 38
    $50
    Louisville, CO
  126. NEW! Commuting Backpack with Helmet Pocket
    $40
    Longmont
  127. New 27.5x2.1 gravel tires
    $40
    Lafayette
  128. E-Bike Electric Motor Adapter Kit
    $395
    Lafayette
  129. 2 fork mount bike holders
    $20
    Longmont
  130. Bicycle Basket
    $15
    Longmont
  131. Rack for seat post.
    $20
    Longmont
  132. Fox, TLD SS Jerseys (3) Men's Size L
    $80
    Boulder
  133. New Knog Oi Bike Bell
    $12
    Boulder
  134. Float Float X/DPX2 (1/2" shaft) Volume Tuning Kit
    $10
    Boulder
  135. Kuat NV2.0 Bike Rack Extension
    $450
  136. Banjo Brothers Bicycle Rack Top Bag very good condition
    $20
    Boulder
  137. Planet Bike Mini Versair Pump
    $15
    Boulder
  138. Silca Tattico Mini Pump
    $30
    Boulder
  139. Shimano Ultegra HG800 11 speed cassette 11x34
    $50
    Boulder
  140. Shimano HG-700 11 speed cassette 11x34 mint condition
    $30
    Boulder
  141. Whisky Parts No. 7 Carbon Seatpost 30.9 x 400mm straight
    $65
    Boulder
  142. Redshift Sports ShockStop PRO Suspension Handlebar Stem 90mm +/- 6 deg
    $150
    Boulder
  143. Quality Wheels RS505/DT R500 Disc Rear Wheel (700c) (12 x 142mm)
    $80
    Boulder
  144. Thule Wheel On wheel carrier
    $35
    Erie
  145. Women's Giro Reva Mountain bike shoes - EU 39 - LIKE NEW
    $50
    Longmont
  146. Yakima hitch mount hanging bike rack with integrated cable lock
    $100
    Superior
  147. Pearl Izumi Cycling Shoes - sz 45.5
    $30
    Longmont
  148. Burley Solo 1 Child Bike Trailer
    $120
    Boulder
  149. Brand new Pace Road shoes (44)
    $75
    Boulder
  150. MKS Sylvan touring pedals
    $20
    Longmont
  151. MAXXIS Rekon 27.5x2.6 mountain bike tires
    $10
    Longmont
  152. 6KU Track Wheel Set
    $30
    Lafayette
  153. SR Suntour XCR34 29" Fork
    $50
    Lafayette
  154. Bicycle Hangers - 3x Wall Mount Hangers
    $25
    Louisville
  155. Wahoo KICKR Core Cycling Trainer
    $150
  156. Terreno Mix G2.0 TNT Tubeless Tire - 700C x 35mm
    $45
    longmont
  157. Calfee carbon fiber disc road fork
    $60
    Boulder
  158. WTB SL8 saddle/Medium/Titanium rail
    $50
    Erie
  159. Shimano GRX shifter/caliper F&R 2X11
    $200
    Erie
  160. North Shore 6 Bike Hitch Rack
    $600
    Longmont
  161. Fenders Lights and Rack
    $15
    So Boulder
  162. Rocky Mounts Step Thru Frame Brace
    $15
  163. Soma Wolverine v4.1 50cm Frame
    $850
    Hygiene
  164. Bike storage floor stand
    $10
    Boulder
  165. Carbon 650b wheelset: LB rims + i9 hubs + Sapim spokes
    $500
    Boulder
  166. XCadey chainrings, 50/34t, 110 BCD, 5 bolts
    $20
    Boulder
  167. Topeak Tri-cage Carbon (for under saddle) (x2)
    $30
    Boulder
  168. Specialized S Works Carbon 175mm 52/36 11-speed BB30 crankset
    $120
  169. Road Bike stems and Mountain Bike Stems
    $10
    Louisville
  170. RST Dirt Jump Fork 26"
    $20
    Louisville
  171. Seatposts and Road Handlebars
    $10
    Louisville
  172. Brake parts
    $15
    Louisville
  173. Road saddles and Mountain bike saddles
    $10
    Louisville
  174. Shimano hydraulic Di2 11 speed electronic shifter set
    $200
    Louisville
  175. Yeti Carbon 740mm bars 31.8 clamp
    $50
    Louisville
  176. Redshift Shockstop Suspension stem 110mm, 31.8 new in box
    $120
    Louisville
  177. Bike Cargo Trailer
    $100
    Boulder
  178. saddle bags basket
    $40
    Longmont
  179. Yakima Freeloader
    $80
    Erie
  180. Thule rear bike rack for three bikes
    $50
    Boulder
  181. work stand
    $140
    Longmont
  182. womans Specialized Road bike shoes, new
    $40
    south boulder
  183. Sidi Alba 2 road cycling shoes EU 47 / US 13.5
    $50
    Longmont
  184. MTB bike helmet - Smith Convoy - size large - brand new
    $50
  185. Feedback Sprint Repair Stand
    $120
    Boulder
  186. Road bike wheelset (wheels, tires, rear cassette)
    $125
    Boulder
  187. FOX Transfer Factory Dropper Seatpost 175mm x 30.9
    $100
    Boulder
  188. KS Cruxi CRUXi Dropper Seatpost 100mm travel x 31.6 diam
    $70
    Boulder
  189. Rock Shox Reverb dropper seat post 100mm x 31.6 - needs some work
    $50
    Boulder
  190. Shimano ME4 Trail SPD Shoes EU39
    $50
    Boulder
  191. Kids MTB gear lot everything you need - shoes,shirts, gloves pand pads
    $25
    Boulder
  192. Ibis Blackbird Send MX Mullet Wheelset
    $500
    longmont
  193. BikeYoke Revive Max 160mm 34.9mm
    $280
    longmont
  194. 2022 Performance Elite Series 34 FLOAT 29 140mm FIT4
    $400
    longmont
  195. New Lectric E-Bike Large Basket
    $50
  196. 2026 New Schwalbe DH/enduro tires
    $180
  197. Mavic 700c road bike carbon fiber front wheel
    $60
    Boulder
  198. 26x2.35 City Tires Used
    $18
    S Boulder
  199. ENVE SES 3.4 AR Disc Wheels NIB
    $1,800
    S Boulder
  200. 3T Stem 120mm
    $24
    S Boulder
  201. Selle Italia Flite Saddle - Giro d'Italia Special Edition- NIB
    $95
    S Boulder
  202. 3T Carbon Handlebar, Stem, Seatpost w Olympic Graphics
    $395
    S Boulder
  203. Campagnolo Tool Set
    $4,750
    S Boulder
  204. Mapei Socks- Defeet
    $20
    S Boulder
  205. bike tire pumps OBO
    $10
  206. Various handlebars
    $7
  207. SRAM XX1 Eagle DM DUB "Boost" Carbon Crankset
    $225
    Boulder
  208. RockyMounts quick-release roof bike rack
    $50
  209. Topeak mount bag and basket
    $100
  210. Saris Bones 3 bike rack
    $40
    Boulder
  211. TAG ALONG $40/ SHOES $20/ TRAINER $20/ BIKE borrow city $150/ xoearth
    $20
    Boulder
  212. HELMET FLAGS reflective/ BIKE RACK upgrade cargo/ TRAINER/ xoearth
    $35
    Boulder Central
  213. Yakima bike rack
    $300
    Boulder
  214. Bike shoes: Mens size 16: Shimano with clips: Never worn
    $50
    Frasier Meadows/Boulder
  215. 36V 10.4ah lithium ion battery
    $75
    Longmont
  216. Yakama SuperJoe3 Trunk Bike Rack
    $75
    Hygiene
  217. 164 mm Brooks C17 Carved Saddle
    $125
  218. 142 mm Pro Stealth Team Saddle
    $200
  219. Manitou Machete 29+ 120mm travel
    $100
    Longmont
  220. 2023 Fox Transfer SL 31.6 new in box
    $200
    Longmont
  221. Rolf Sestriere Front Wheel
    $39
    Erie
  222. Pearl Izumi Men’s Elite V3 Road Shoes 46.5
    $25
    Erie
  223. Sidi Men’s Road Shoes Size 46
    $25
    Erie
  224. Dog leash for bikes
    $25
  225. WTB bicycle saddles
    $75
    Boulder
  226. Water Bottle Carrier - Profile Design RML
    $30
    Boulder
  227. Shimano Ultegra pedals (look)
    $50
    Boulder
  228. KEO Carbon Pedals (look)
    $50
    Boulder
  229. Sram Crankset Rival 22 175mm BB30 - $100
    $100
    Boulder
  230. Sram Crankset X7 175mm BB30
    $100
    Boulder
  231. Shimano Dura Ace RD-7700 9-Speed Rear Derailleur
    $30
  232. Fork Up - Cannondale Lefty Wheel Mount
    $15
  233. SRAM GXP Carbon Crank - Direct Fit chainrings with spider
    $40
  234. Cannondale SI Spidering Plateau Chainring 32t - NEW
    $35
  235. Shimano Gravel/MTB Shoes XC702 Wide
    $110
    Longmont
  236. Various bike parts
    $0
  237. PNW loam carbon handlebar
    $120
    Lafayette
  238. Ritchey Carbon Breakaway Travel Bike
    $2,000
    Lafayette
  239. Fuji Track Pro Track Bike
    $550
  240. Yakima Bike Rack
    $80
    Longmont
  241. Bike Carrier for Car
    $25
    Erie
  242. SRAM GX Eagle Cassette
    $35
  243. Specialized Avatar Gel Body Geometry 143 mm Saddle / Seat
    $30
    Boulder
  244. WTB Pure V Sport Bike Saddle / Seat
    $30
    Boulder
  245. Marin MTB bike seat / saddle
    $20
    Boulder
  246. 2 Lolo bicycle handlebar rack mounts
    $25
    Boulder
  247. SRAM Force GXP Crankset w/ X-Sync 42T
    $30
    broomfield
  248. SRAM Force 1X DUB 172.5mm
    $90
    Longmont
  249. Hard case for bicycles with S&S couplings
    $200
    Broomfield
  250. Rocky Mounts locking fork mounts
    $50
    Broomfield
  251. Rocky Mounts hitch mount bike rack.
    $495
  252. Ortlieb Waterproof Bike Panniers
    $100
    Boulder
  253. Sidi Dragon 3 Carbon MTB Size 44
    $50
    Louisville
  254. New in Box: RaceInc Pro XL BMX Frame Black Matte
    $499
    Boulder
  255. Bike Stand
    $35
  256. SQLab 30X 12 degree mid-rise bar
    $60
    Boulder
  257. Ergon SR Allroad Core saddle
    $60
    Boulder
  258. Adjustable BV Bike Kickstand
    $12
    South Boulder
  259. Premium Gravel/Road Bike Parts
    $0
  260. Deda Zero100 Team Stem- NEW!
    $55
    Boulder
  261. Shimano Ultegra Rear Derailleur 11 Speed
    $35
    Boulder
  262. LOOK A-Stem
    $85
    Boulder - Longmont - Denver
  263. Shimano Di2 Remote Climbing Shifter
    $40
    Boulder - Longmont - Denver
  264. Thule Velo Vise Fork-Mount bike trays and cross bars
    $35
    Boulder
  265. Bike rack for trunk
    $20
  266. Bike rack - trunk
    $30
  267. Road Cycling Gear Bundle -- Lumos Helmet + Cycling Shoes w/Cleats + GripGrab Glo
    $85
    Boulder
  268. BRAND NEW, OLD STOCK- 2000 Bob Yak Plus Dry Sak Silver Trailer
    $400
  269. 26 inch presta valve bike tubes
    $10
    Longmont
  270. Via Velo Bike Lock
    $20
    Boulder
  271. Shimano Dura Ace CS-7700 9 Speed Cassette
    $30
    Longmont
  272. Shimano Ultegra FC-6500/6503 172.5mm Crankset Double 53/39T 9-Speed
    $25
    Longmont
  273. Trek Saddle Bags
    $20
    E Boulder
  274. Thule bike rack
    $99
    Boulder
  275. Specialized Roubaix Expert 2010
    $499
    Boulder
  276. Shimano Bike Cycling Shoes Mens 47 EU 2 bolt
    $40
    Boulder
  277. Saris 2 Bike Rack
    $300
    Boulder
  278. Canyon integrated carbon handlebar 46mmx80mm
    $200
  279. Thomson carbon road handlebar 46mm
    $100
  280. Campagnolo Chorus 10spd group set
    $400
    Boulder
  281. Yakima 2 bike locking rack
    $150
  282. Bontrager RACE Threadless Alloy Road Stem
    $10
    Longmont
  283. Bontrager Race Alloy Seat Post
    $12
    Longmont
  284. Bontrager Race Alloy Handle Bars
    $12
    Longmont
  285. Selle Italia SLK Saddle
    $12
  286. New / Never mounted Kenda Kaliente L3R Pro Road Tire
    $15
  287. Comfy bike seats and new E Bike Tires
    $180
    S Boulder
  288. Bike Stand - Ninja Stoke - Wood
    $25
  289. Kids Pearl iZumi wind jacket and vest
    $20
  290. Troy Lee Designs Stage - Small Full Face
    $100
  291. [brand new] Oquo (Orbea) MC32 Mountain Bike Wheels w/ tires and rotors
    $400
    Boulder
  292. Assioma pro mx power meter
    $350
  293. Kinetic indoor bike trainer
    $50
    Boulder