RLB Cycleworks - A nice 2004 Trek 4100 aluminum frame mountain bike with a 16” frame. Professionally serviced and ready to ride! A higher-end mountain bike with an semi-aggressive geometry with excellent
TREK alpha 4100 Frame 16 inches Wheels 26x200 - Bicycles - Danbury, Connecticut | Facebook Marketplace | Facebook
Imported Trek 4100 21 Speed Mountain Bicycle - R2750 • Serviced by Vintage Cycles • Small • Full Aluminium • 21 Speed • Rapid Fire Gear… | Instagram
![2 Rivers Used Trek 4100 Large - 2 Rivers Bicycle and Outdoor - Bicycle Shop - Fort Atkinson and Watertown Wisconsin 2 Rivers Used Trek 4100 Large - 2 Rivers Bicycle and Outdoor - Bicycle Shop - Fort Atkinson and Watertown Wisconsin](https://www.sefiles.net/merchant/2200/images/large/bikes10.png)