![TREK 3 Series 3500 Mountain Bike Alpha Aluminum Frame size 21" 53.5cm Wheel size 26 x 2.00 for Sale in Boca Raton, FL - OfferUp TREK 3 Series 3500 Mountain Bike Alpha Aluminum Frame size 21" 53.5cm Wheel size 26 x 2.00 for Sale in Boca Raton, FL - OfferUp](https://images.offerup.com/1r_rpe2lOjSKDcTYE9zOJBmcXqA=/249x344/33fa/33fa05c7287d4875bcfbb7ca9b8503b8.jpg)
TREK 3 Series 3500 Mountain Bike Alpha Aluminum Frame size 21" 53.5cm Wheel size 26 x 2.00 for Sale in Boca Raton, FL - OfferUp
![TREK 3 Series 3500 Mountain Bike Alpha Aluminum Frame size 21" 53.5cm Wheel size 26 x 2.00 for Sale in Boca Raton, FL - OfferUp TREK 3 Series 3500 Mountain Bike Alpha Aluminum Frame size 21" 53.5cm Wheel size 26 x 2.00 for Sale in Boca Raton, FL - OfferUp](https://images.offerup.com/larCjymYrzwXFHKOfR42QzLeaNY=/800x600/5f90/5f90fc98631048c88a6bc823bd2e3919.jpg)
TREK 3 Series 3500 Mountain Bike Alpha Aluminum Frame size 21" 53.5cm Wheel size 26 x 2.00 for Sale in Boca Raton, FL - OfferUp
![Trek mountain bike - 3500 alpha silver aluminum- great shape 20-21” frame for Sale in Chula Vista, CA - OfferUp Trek mountain bike - 3500 alpha silver aluminum- great shape 20-21” frame for Sale in Chula Vista, CA - OfferUp](https://images.offerup.com/W8MnJDpNPGTHvv9A87LWOinHNFE=/1305x1920/f845/f845586df9d34e7791ea6f6dc1d77908.jpg)