2011 Trek 4500 Disc Mountain Bike 20" Frame For Sale
Trek 4500 | Hardtail Mountain Bikes | Bike Hub
Trek 4500 D 2013|Gear Cycle with Disc Brakes|26" MTB cycles below Rs.1Lakh|Bicycle@ChooseMyBicycle.com
Hi! I have for a long time this early 2000's Trek Alpha 4500 and I want to do an upgrade project on this bike, what things do you recommend me to upgrade