Specialized Hardrock 21-speed medium mountain bike disc in excellent condition

$250

bicyclesBoston University~12kmPosted 1 day agoSep 13, 2026, 8:45 PM PDTAnalytics

Description

Specialized Hardrock 21-speed medium (18” frame) mountain bike with disc brakes in excellent condition.

18” (M) frame, good for riders approximately 5’6” to 5’10” in height

26” wheels with excellent condition Specialized Hardrocker 26”x1.95” tires

Color: black and magenta

21-speed (3x7)

SRAM trigger shifters

SRAM X3 derailleurs

Mechanical disc brakes

SR Suntour front fork suspension

Quick release wheels and saddle

Kickstand

Water bottle cage

Bike has been fully tuned-up and adjusted.

Located in Auburndale (Newton), MA. Can also meet periodically in Wellfleet.

Location

Auburndale

~12 km from Boston University

View location on Google Maps

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Auburndale

~12 km from Boston University

View location on Google Maps

Hybrid Bike

$250@stanford.edu

(Reserved) Retrospec Harper Fixie / Single-Speed Bike – Size L, Matte Black + Chain Lock

Bike with a basket

New GSB student looking to buy a used bike to get to and from class. Nothing fancy — just needs to be reliable and the right size. I'm 6'2", ~200 lb, so the frame has to be large: roughly 58–61cm for road/gravel, or L/XL for a hybrid or commuter. Please include the frame size in your reply, since that's my main constraint. Open to geared bikes or single-speeds. Gears are a plus if I ever ride off campus, but for flat campus riding a single-speed is fine. Looking for: Working brakes, and shifting that works if it's geared Frame in solid shape — no cracks, bends, or heavy rust Wider tires (32mm+) preferred over skinny racing tires Nice to have: rack mounts, fenders, or a lock/lights included. Send photos, the frame size, and roughly how old it is. Cash on pickup, I can meet anywhere on or near campus, and I'm flexible on timing.

$200@stanford.edu

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Good condition bike. I live at Rains but happy to commute to wherever you are on campus for pick up. Happy to pay slightly more for helmet + lock.

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