![Trek 3900( Alpha Custom Aluminum ) Mountain Bike, 24Speeds. Size : 49.5cm Good Condition. for Sale in Plantation, FL - OfferUp Trek 3900( Alpha Custom Aluminum ) Mountain Bike, 24Speeds. Size : 49.5cm Good Condition. for Sale in Plantation, FL - OfferUp](https://images.offerup.com/S4bpu5lMw-M8Jr4CdVgSylY7cj4=/250x333/271f/271f002fd109493db44d37bad1e8e3ec.jpg)
Trek 3900( Alpha Custom Aluminum ) Mountain Bike, 24Speeds. Size : 49.5cm Good Condition. for Sale in Plantation, FL - OfferUp
![Trek 3900( Alpha Custom Aluminum ) Mountain Bike, 24Speeds. Size : 49.5cm Good Condition. for Sale in Plantation, FL - OfferUp Trek 3900( Alpha Custom Aluminum ) Mountain Bike, 24Speeds. Size : 49.5cm Good Condition. for Sale in Plantation, FL - OfferUp](https://images.offerup.com/9sfyNnTb1UUi97nZXFdpky_wUrw=/250x333/1e95/1e95ace5ca0d4aa98dafa25b70721c7a.jpg)
Trek 3900( Alpha Custom Aluminum ) Mountain Bike, 24Speeds. Size : 49.5cm Good Condition. for Sale in Plantation, FL - OfferUp
![Trek 3900 Alpha Mountain Bike - custom aluminum, 18" or 46cm size, new comfy seat for Sale in Seattle, WA - OfferUp Trek 3900 Alpha Mountain Bike - custom aluminum, 18" or 46cm size, new comfy seat for Sale in Seattle, WA - OfferUp](https://images.offerup.com/H9MZS1BvZ7f4WAEGMuv3cR0xTdA=/750x1000/dbc2/dbc228c702c643c7a0c19a6ce5194c54.jpg)
Trek 3900 Alpha Mountain Bike - custom aluminum, 18" or 46cm size, new comfy seat for Sale in Seattle, WA - OfferUp
![Trek 3900 3 Series Sport Level Mountain Bike 18"/46cm black - SHIW | Used Bikes for Sale - Silicon Valley Bicycle Exchange - Bay Area Trek 3900 3 Series Sport Level Mountain Bike 18"/46cm black - SHIW | Used Bikes for Sale - Silicon Valley Bicycle Exchange - Bay Area](https://shop.bikex.org/uploads/1/3/0/0/130002567/s518234545767551931_p1457_i1_w2048.jpeg)