loading
reading
writing
saving
searching
refresh the page.
craigslist
boulder mountain bikes
see also
electric bikes
kids bikes
mountain bikes
road bikes
Rockrider ST 100 trail / mountain bike
$140
Boulder
Trek Superfly 29er - Size XL
$525
Arvada
HARO V-Series V1 Hardtail Mountain Bike Excellent Condition Just Tuned
$280
Louisville
Giant Revel W1 Disc Woman’s Hardtail Mountain Bike Excellent Tuned
$380
Louisville
Trek 6500ZX 21 Speed Front Suspension Mountain Bike
$150
Specialized era comp 26 light
$225
Nederland
Raleigh Talus Mountain Bike Like New Condition Ready to Ride
$240
Louisville
Diamondback Lustre 1 21 Speed Front Suspension Mountain Bike
$100
Gary Fisher Joshua X1
$250
Superior
Specialized Hot Rock 24"
$200
Erie
Small / Medium Specialized Mountain Bikes x 4 - Tuned Up
$250
Boulder
Kids' Extra Small Trek Mountain Bikes - 26" Wheels - Pro Tuned Up
$250
Boulder
Trek 4500 Women's Hardtail Mountain Bike
$250
Boulder
Extra Large Spot Mayhem 130 5 star AXS build carbon 29er
$2,300
Boulder
Large Specialized S-Works Stumpjumper 29 XX1 (excellent shape)
$1,999
Boulder
Diamondback Recoil Full-Susp 29er Disc Brakes Large 3x8
$300
RoadMaster Mt. Fury Mountain Bike Great Condition Just Tuned
$70
Louisville
TREK 3700 Hardtail Mountain Bike Excellent Condition Fully Serviced
$280
Louisville
JEEP Hardtail Mountain Bike Excellent Condition Ready to Ride
$200
Louisville
Giant Sedona SE Hardtail Mountain Bike 17.5in Small 26x1.95 3x7
$195
Marin San Quentin
$990
Longmont
Dynacraft Aftershock 18 Speed Dual Suspension Mountain Bike
$100
Specialized Hardrock Sport - Medium
$90
Arvada
Trek 2021-2023 Roscoe 6 S CH-RD Mountain Bike
$550
Louisville
Mongoose Sycamore bike for medium/tall person
$100
Boulder
Schwinn Solutions FS 27 Speed Front Suspension Mountain Bike
$100
Mongoose Sahara 21 Speed Front Suspension Mountain Bike
$100
Mongoose Montana 21 Speed Front Suspension Mountain Bike
$125
Mountain Bike needs new home
$250
Trek Women's Neko 1 Mountain Bike
$250
Boulder
TREK 3500 Hardtail Mountain Bike Excellent Condition Fully Serviced
$280
Louisville
Trek 6500ZX 21 Speed Front Suspension Mountain Bike
$150
Raleigh M40 21 Speed Front Suspension Mountain Bike
$150
Specialized Turbo Levo SL 2 Comp Carbon Large-Brand New!!!
$5,300
Louisville
Roadmaster 18 Speed Mountain Bike
$60
Trek 3500
$200
erie
Fezzari (Ari)Delano Peak Pro (Large) High end spec
$3,762
Boulder
Trek 820 Hardtail Bike 13in XS 3x7 26x2.0 Blk Suntour Fork
$190
Raleigh USA M-55 Hardtail Mountain Bike Excellent Condition Just Tuned
$220
Louisville
GT Outpost Trail Mountain Bike Excellent Condition Fully Serviced
$240
Louisville
Raleigh M40 21 Speed Front Suspension Mountain Bike
$150
Orbea WILD FS H20 E-Bike Dual Suspension Mountain Bike 2022 LG Silver
$4,200
Berthoud
Saintropez Trailwinder
$50
greeley
Specialized rock hopper mountain bike mountain bike
$325
Boulder
Trek 820 Hardtail Bike 18in 3x7
$190
TREK 800 ATB-All Terrain Bike Excellent Condition Fully Serviced
$200
Louisville
Gary Fisher MTB in well maintained condition
$150
Boulder
TREK 3700 Hardtail Mountain Bike Excellent Condition Fully Serviced
$280
Louisville
2024 S-Works Epic World Cup
$6,350
Erie
K2 Cheyenne Hardtail Mountain Bike Excellent Condition Fully Serviced
$300
Louisville
Trek mountain bike
$575
Lafayette
Raleigh Technium ATB-All Terrain Bike Excellent Cond. Fully Serviced
$320
Louisville
GIANT Boulder SE Hardtail Mountain Bike Excellent Condition Just Tuned
$260
Louisville
K2 ZED 1.0 Hardtail Mountain Bike Excellent Condition Fully Serviced
$300
Louisville
2021 Medium Giant Stance 29 2
$1,200
Boulder
2020 Large Specialized Rockhopper Expert 29
$400
Boulder
XL Ragley Bigwig Enduro Hardtail Mountain Bike
$1,600
Boulder
XL Trek Roscoe 8 Hardtail Mountain Bike
$950
Boulder
2019 S-Works Specialized Stumpjumper 29er
$3,500
Erie
2016 Rumor Elite - 650B/27.5
$500
Erie
14.5 inch Fame Youth Mountain Buke
$500
Longmont
TREK 4300 Hardtail Mountain Bike Excellent Condition Fully Serviced
$300
Louisville
2021 Yeti SB 130 T2, XL frame, great condition!
$3,750
Boulder
Santa Cruz Nomad Mountain Bike
$2,800
Boulder
Moots Smoothie Blend MTB - Size Medium (17")
$2,500
Louisville
[OBO] 2021 Hardtail MTB: Ghost Kato Universal 29 Hardtail Medium
$400
North Boulder
XS - Specialized Rockhopper 27.5 wheels - youth MTB
$395
2024 Revel Ranger V2 XO build
$4,500
2012 Surly Pugsley Black Ops/Necromancer 20" (L), 2 wheelsets, extras
$1,700
Titanium Voodoo Haka 29er
$750
Nederland
Bridgestone MB-5 Mountain Bike Excellent Condition Fully Serviced
$300
Louisville
Guerilla Gravity Smash - trade for XC/trail bike
$3,200
South Boulder
Kids' Extra Small Trek Mountain Bikes -26" Wheels - Pro Tuned Up
$250
Boulder
Trek Mountain Track City Commuter Bike
$200
Boulder
Extra Small Specialized Comp Kids Mountain Bike - 26" Wheels
$250
Boulder
Gary Fisher Kaitai Mountain Bike
$250
South Boulder
Specialized XC FSR Aluminum Full Suspension Mountain Bike
$400
South Boulder
Specialized Pitch 27.5 Mountain Bike
$380
South Boulder
Iron Horse CT55 Mountain Bicycle
$150
South Boulder
Gary Fisher Joshua X1 Full Suspension Mountain Bike
$320
South Boulder
Giant Boulder Mountain Bike
$180
South Boulder
Nishiki Bravo Mtn Bicycle
$125
South Boulder
Schwinn Mesa GS Aluminum Frame Suspension Mountain Bike bicycles
$225
South Boulder
Classic Schwinn s [ 9 five] .3 Aluminum Mountain Bike
$175
South Boulder
GT Saddleback Mountain Bike - Front Suspension
$125
South Boulder
Specialized Hardrock Punk Mountain Bike
$225
South Boulder
Kona Hoss Aluminum Frame Mountain Bike
$250
South Boulder
Kona Cinder Cone Suspension Mountain Bicycle
$250
South Boulder
Giant Rincon Mountain Bicycle
$200
South Boulder
GT Outpost Mountain Bicycle - Front Suspension
$175
South Boulder
GT Outpost All Terra Vintage Mountain Bike
$200
South Boulder
Fuji Eddy Mountain Bicycle
$200
South Boulder
GT Aggressor 2.0 Aluminum Frame Mountain Bike
$200
South Boulder
Fuji Nevada Mountain Bike
$200
South Boulder
Trek 6500 Aluminum Frame Mountain Bike - Orange
$300
South Boulder
Trek 6500 Aluminum Frame Mountain Bicycle - Blue
$300
South Boulder
Specialized HardRock FS Mountain Bike - Silver
$225
South Boulder
Gary Fisher Cake 3 DLX Bicycle Full Suspension Hydraulic Disc Brakes
$480
South Boulder
Cannondale F600 Comp Mountain Bicycle
$250
South Boulder
Specialized Hardrock Sport Mountain Bike
$280
South Boulder
Cannondale F300 Front Suspension Mountain Bike
$275
South Boulder
Schwinn Mesa GSX Aluminum Mountain Bike Front Suspension
$250
South Boulder
Castellano Fango Softail Aluminum Frame Mountain Bicycle
$380
South Boulder
Giant ATX780 Front Suspension Mountain Bike
$200
South Boulder
Gary Fisher Mamba Front Suspension Mountain Bike
$200
South Boulder
Gary Fisher Napa Mointain Bike
$250
South Boulder
Vintage 90s GIANT Iguana SE Silver MTB Mountain Bike Ready2Ride! 17.5"
$180
Gunbarrel
Schwinn Mountain Bike
$75
Marshall Rd
Yeti SB140 turq mountain bike, Sangria colorway, XL
$5,000
Boulder
2020 Evil the Wreckoning - full carbon L frame
$1,900
Boulder, CO
Specialized Epic Evo
$0
2023 Trek Supercaliber M/L
$3,200
Boulder
2025 Specialized Stumpjumper Alloy 52cm
$2,100
Boulder
Woom Off Air 5 24" Mountain Bike - Excel. Cond., 2 yrs old, Orig Owner
$1,050
Near Louisville
Mountain Bike Santa Cruz Julianna Joplin
$3,450
Boulder
DIAMONDBACK OVERRIDE BICYCLE w GRIP SHIFTS
$125
North Boulder Area
Hardtail Mountain Bike - REI Brand
$640
Longmont
Intense Eddie Hard Tail 29er
$1,000
Boulder
GT 2.0 Avalanche 24 sp medium 26 mtn bike new
$425
Arvada
SPECIALIZED MOUNTAIN BIKE
$125
BOULDER
SPECIALIZED MOUNTAIN BIKE
$125
BOULDER
Khs alite 1000
$125
Lafayette
XXL Specialized Rockhopper
$700
Longmont
1993 GT All Terra Outpost Chromoly Steel Triple Triangle Mountain Bike
$350
Boulder
2021 Yeti SB 115 XL
$2,950
Lyons
Trek Bike Marlin 6
$350
Boulder
Wilde Supertramp, size Large, Shimano XT, Paul, WTB, Wolftooth
$2,200
Lafayette
Schwinn Moab 2 Extra Small tuned ready to ride
$125
Boulder
NEW Cannondale Trail -7 M bike w/Rack
$325
Longmont
Fuji Mountain Bike
$50
Erie
2020 Intense Sniper, size L
$1,800
Altona
2022 Marin Rift Zone 2 Mountain Bike (UPGRADED!)asking $1400
$1,400
2012 Rebuild Trek Superfly 100 Pro (17.5") 29r
$1,800
West Longmont/Niwot
Trek 300 Navigator 14 speed
$115
Longmont
Sold! 2016 Trek Farley 5
$500
Gunbarrel (Boulder)
Free Huffy Rock Creek Mnt Bike
$0
Lafayette
Specialized Enduro Expert S3 Medium SRAM XO Fox Cushcore
$3,600
2022 Specialized Stumpjumper Comp Alloy S3 (Medium)
$1,800
Boulder
Trek 4500 women’s mountain bike
$150
Gunbarrel
Nishiki Pueblo 24" Mountain Bike
$90
Louisville
REI Fatbike - DRT 4.1
$500
Specialized Hard Rock 24''
$129
Longmont
Specialized Hardrock Mountain Bike
$120
Longmont
Diamondback Sorrentose Mountain Bike
$100
Boulder
Gary Fisher Wahoo Mountain Bike
$120
Boulder
REI Coop Cycles 2024 Drt 1.2 hardtail MTB - Brick color
$599
Boulder
Specialized S Works Epic WC Size Large
$6,000
Boulder
Specialized Status 140 Mountain Bike - Size S3/Medium
$2,000
Broomfield
Youth Full Suspension Electric Mountain bike 2022 Mondraker
$1,500
boulder
Trek 7000 MTB
$125
Gunbarrel
Diamond Back mountain bike
$125
Boulder
2016 Santa Cruz Tallboy C XL
$1,900
boulder
Litespeed Toccoa titanium mountain bike
$895
Boulder
Specialized S-works Stumpjumper FSR 29, Size L
$2,400
Lafayette
Trek Farley 8 Fat Tire Bike
$995
Broomfield
2021 Ibis Ridley AF SLX Mountain Bike
$2,000
Yeti Sb5 TURQ XL SRAM XO
$2,500
Louisville
Trek 3700. Aluminum. 13". Limited free delivery.
$139
Greeley
Specialized
$129
Longmont
GT FORCE 3.0 XL EPIC MT BIKE INSANE PRICE!
$250
Boulder
Niner Air9 Hardtail Medium 29er
$500
Superior
Small mountain bikes
$125
Trek Xcaliber 7 mountain bike
$350
Erie
Mountain Bike $30
$30
Boulder
Liv Tempt 1
$800
Boulder
HUFFY
$100
Longmont
Specialized
$129
Longmont
PERFORMANCE Mountain Bike M101
$50
Yeti ASR TURQ Large
$4,998
Boulder
Surly Karate Monkey XL - Lemon Lime Soda
$1,200
Lafayette