![Trek 3900. Seller asking $125. Good deal? Don't know a whole lot about bikes. Needing to get one. : r/whichbike Trek 3900. Seller asking $125. Good deal? Don't know a whole lot about bikes. Needing to get one. : r/whichbike](https://preview.redd.it/fny19uht5o891.jpg?width=640&crop=smart&auto=webp&s=2f83f24a71bcc4ea1ef829073b5aa71de102185d)
Trek 3900. Seller asking $125. Good deal? Don't know a whole lot about bikes. Needing to get one. : r/whichbike
![Trek 3900 3 Series Mountain Bike with Shimano gears, Sports Equipment, Bicycles & Parts, Bicycles on Carousell Trek 3900 3 Series Mountain Bike with Shimano gears, Sports Equipment, Bicycles & Parts, Bicycles on Carousell](https://media.karousell.com/media/photos/products/2019/05/19/trek_3900_3_series_mountain_bike_with_shimano_gears_1558240418_fa64f3a3_progressive.jpg)
Trek 3900 3 Series Mountain Bike with Shimano gears, Sports Equipment, Bicycles & Parts, Bicycles on Carousell
![Trek ZX 6000 MTB Bike 1997 Medium 16.5" Hardtail Rigid Canti Shimano US Charity! | eBay | Mtb bike, Trek bikes, Bike Trek ZX 6000 MTB Bike 1997 Medium 16.5" Hardtail Rigid Canti Shimano US Charity! | eBay | Mtb bike, Trek bikes, Bike](https://i.pinimg.com/originals/75/68/27/75682773119c5bc65bc838fbc2321bcd.jpg)
Trek ZX 6000 MTB Bike 1997 Medium 16.5" Hardtail Rigid Canti Shimano US Charity! | eBay | Mtb bike, Trek bikes, Bike
![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/CLYByOeVc_FJSVRkxhEMzX2KQ-Q=/1008x756/5489/5489b0ae012a44e8b37306ffae0ac041.jpg)