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Trek 3900 Mountain Bike – 21” Frame – Alpha Aluminum – 26” Wheels – Shimano

$300

Posted about 8 hours ago in Parker, CO

Condition: Used (normal wear)

Listed in categories: Sports & Outdoors - Bikes & Cycling

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Trek 3900 Mountain Bike – 21” Frame – Alpha Aluminum – 26” Wheels – Shimano

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Trek 3900 Mountain Bike – 21” Frame – Alpha Aluminum – 26” Wheels – Shimano Solid Trek 3900 mountain bike, lightweight Alpha Custom Aluminum frame (21” / 53.5cm – fits riders around 5’11”–6’3”). Great all-around ride for trails, gravel, or commuting. ✅ Spinner Grind 1 front suspension ✅ Shimano SIS 21-speed drivetrain (3x7) ✅ 26x2.0 Bontrager tires ✅ V-brakes – simple, reliable stopping power ✅ Kickstand + bottle cage included Bike is in good used condition with normal wear. Shifts and brakes work, tires hold air, and it’s ready to ride. 💲 Asking $300 OBO 📍 Pickup in Parker Keywords: Trek 3900, Trek MTB, hardtail mountain bike, Shimano, Alpha Aluminum, large frame

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